Science Based Fitness

Body & Mind Balance

Healthy Daily Life

Meditation Practice

Monthly Yoga Challenges

What is Science Based Fitness?

Your free- source of information, news, and deep dive into the latest science in the world or fitness and health. We dive deep into the literature and debunk a lot of fake claims. Also, providing helpful tips and workouts to improve your health and quality of life. 

Fat loss

How to lose fat

Backed by science 

Burn Fat

The secret to weight loss backed by science

By now, you’ve probably heard of all the different weight loss diets. There is Keto, Atkins, carnivore, whole foods, vegan, vegetarian, plant based, animal based, and many more. What do these diets have in common? The elimination of processed or sugary foods. However, all diets have one thing in common, and that is the reduction of calories by eliminating more caloric dense foods. 

It seems every couple of years the health industry cycles on diets based on trending topics. It’s unfortunate in the realm of fitness and health, the industry tries to sell so many products and plans. The truth behind weight loss is far more boring, and due to its boring and consistent nature, the industry works to start controversy.  The good news for you is Science Based Fitness provides you with all the information, so you don’t have to buy anything! This is a complete guide to help you lose weight and keep it off without the promotion of fad diets that don’t work long term. 

There’s a lot of “social media influencers” whose job is to sell products, so they make money. Now profit isn’t a bad thing if you’re truly helping people, but most people just want to help people buy a product or plan. At Science Based Fitness, we believe information should be FREE. We don’t want to profit from you. Instead, we want you to live your best life. We may recommend products, but our business model is to keep the mission running. 

The Science behind weight loss

Are carbohydrates bad and make you fat?

Does fat make you fat?

Is red meat bad?

Is high LDL good or bad?

Is insulin spikes bad?

Should you reduce the time you eat meals? 

Chances are you’ve heard these claims time and time again, and you might even listen to a medical professional make these exact claims. However, in the world of science, nothing it true until it can be proven. 

The truth is any diet can work if you stick to it and it puts you in a caloric deficit. A lot of people will debate the calories in vs. calories out logic based on the thermodynamics of foods and energy balance. However, the truth is based on all scientific studies, Weight loss occurs regardless of what calories are reduced from carbohydrates, fats, and proteins. 

torso_bn.jpg

The science Is clear

A caloric deficit is the most important factor for weight loss

Breaking Myths

The secret to weight loss backed by science

Science is clear…. The available evidence shows that weight loss occurs following a reduction in daily caloric intake, regardless of the macronutrient origin of those calories, although the magnitude of weight loss varies according to the type of macronutrient, and the effects on diet-induced thermogenesis.

This is a more simple and logical approach to weight loss. Enjoy the foods you like while focusing more on lean meats, fruits, vegetables, nuts and seeds. However, it’s good to be aware of calories. For example, fat contains 9 calories per-gram, so foods with a lot of fat tend to be more calorically dense. This is where foods with fiber come into play because it helps keep you full and may prevent overeating. Foods that contain higher amounts of fiber will help reduce hunger, and therefore people tend to eat less. We’ll explain more about the importance of fiber and its relation to the gut microbiome in another article. 

Diet and Trends

A lot of diets can be trendy and popular because they’re new and different. Ask anybody builder what they think of chicken, broccoli, and rice. It’s very bland and boring, but it works because you have lean protein, healthy vegetables with fiber, and a healthy carbohydrate source. The structure of that meal has proper proportion macronutrients. (Macronutrients are proteins, fats, and carbohydrates.) Many diets try to adjust caloric intake by reducing macronutrients. For example, keto, Atkins, Carnivore are all low-carbohydrate diets. In nearly all randomized control trials, there’s almost zero difference in weight loss when comparing low carbohydrate to low fat, so this raises the question, how do we lose weight? It’s truly simple when you focus on caloric restriction, then you can enjoy the foods you like while being at a healthy weight. 

If it’s all about calories, then why eat healthy?

Heathy foods, meaning, whole foods are simply better by nature. Most whole foods are less processed, so they have more fiber and less refined sugar added. Let’s look at an apple, for example. An apple contains 95 calories, 3 grams of fiber, and is packed with phytonutrients like antioxidants, vitamins and minerals. Compare an apple to Coke that contains 150 calories with zero fiber, no vitamins and minerals, and you’ll notice the Coke product didn’t leave you feeling full. Some data suggest the Coke beverage may lead you to eating a surplus of calories due to the higher sugar content with zero fiber. A whole apple compared to apple juice is also different. Apple juice goes through a filter and pasteurization process that removes fiber and some vitamins and minerals. Also, sugar is added to sweeten the beverage, so apple juice contains more calories than an apple. This is how people get into a caloric surplus because it’s very simple to over consume calories. 

 

Optimal Nutrition

So, now we understand the logic behind weight loss. However, what’s an optimal diet? Optimal nutrition is defined by the best foods to maximize healthy outcomes. In other words, optimal nutrition means to provide the body with the most nutrient dense foods to increase lifespan and performance. Metabolically, this means choosing foods with the most beneficial components will keep your body at optimal health to prevent disease. Regardless of some influencers claim, the data is clear. 

Focus on lean meats, fish, healthy carbohydrates like rice, oatmeal, legumes, vegetables, fruits, nuts, and seeds. As we continue to learn about the gut microbiome and its complexity, it’s important to consume foods high in fiber as fiber helps feed good bacteria while eliminating bad. A lot of data concludes a Mediterranean diet would be the most beneficial diet for health and longevity. The Mediterranean Diet focuses on mostly lean meats, fish, grains, fruits, vegetables, nuts and seeds while limiting red meats. The Mediterranean diet is one of the most studied and well-known dietary patterns. 

Regarding optimal nutrition, it’s important to know that all foods have value. Wait, even Coke products have value? Regarding living, yes, any source of calories has value to sustain life. Humans didn’t always have an abundance of food available. So whatever foods were available was valuable. For example, red meat has value. Red meat contains proteins, vitamins, minerals, creatine, essential amino acids, and healthy fats. However, red meat also contains a lot of saturated fat, cholesterol, and no fiber. It would be wise to pair red meat with foods with fiber, low in fat and cholesterol, and other vitamins and minerals red meat doesn’t contain. This is the notion behind optimal nutrition. Optimally selecting foods to complement each other and what they’re lacking to promote better health. 

It's still possible to enjoy the foods you like while being in a deficit. Energy balance is the key to weight loss.

Sports Nutrition

For athletes or even average gym participants, it’s important to balance protein, carbohydrates, and fats. Eliminating a macronutrient will put you at a disadvantage. The scientific literature is sound on this notion. Eliminating carbohydrates may result in muscle loss due to the depletion of muscle glycogen. As a result, the muscle will look flat. Also, muscle growth will be limited. The style of training will account for overall caloric intake, protein and carbohydrate requirements. For example, an endurance runner will require more carbohydrates due to the consistent running. 

References

1. Ludwig DS, Willett WC, Volek JS, Neuhouser ML. Dietary fat: from foe to friend? Science. (2018) 362:764–70. doi: 10.1126/science.aau2096

CrossRef Full Text | Google Scholar

2. Foster GD, Wyatt HR, Hill JO, Makris AP, Rosenbaum DL, Brill C, et al. Weight and metabolic outcomes after 2 years on a low-carbohydrate versus low-fat diet: a randomized trial. Ann Intern Med. (2010) 153:147–57. doi: 10.7326/0003-4819-153-3-201008030-00005

PubMed Abstract | CrossRef Full Text | Google Scholar

3. Ebbeling CB, Feldman HA, Klein GL, Wong JMW, Bielak L, Steltz SK, et al. Effects of a low carbohydrate diet on energy expenditure during weight loss maintenance: randomized trial. BMJ. (2018) 363:k4583. doi: 10.1136/bmj.k4583

PubMed Abstract | CrossRef Full Text | Google Scholar

4. Hall KD, Bemis T, Brychta R, Chen KY, Courville A, CRayner EJ, et al. Calorie for calorie, dietary fat restriction results in more body fat loss than carbohydrate restriction in people with obesity. Cell Metab. (2015) 22:427–36. doi: 10.1016/j.cmet.2015.07.021

PubMed Abstract | CrossRef Full Text | Google Scholar

5. Hall KD, Guo J. Obesity energetics: body weight regulation and the effects of diet composition. Gastroenterology. (2017) 152:1718–27.e1713. doi: 10.1053/j.gastro.2017.01.052

PubMed Abstract | CrossRef Full Text | Google Scholar

6. Swiglo BA, Murad MH, Schünemann HJ, Kunz R, Vigersky RA, Guyatt GH, et al. A case for clarity, consistency, and helpfulness: state-of-the-art clinical practice guidelines in endocrinology using the grading of recommendations, assessment, development, and evaluation system. J Clin Endocrinol Metab. (2008) 93:666–73. doi: 10.1210/jc.2007-1907

PubMed Abstract | CrossRef Full Text | Google Scholar

7. Freire R. Scientific evidence of diets for weight loss: different macronutrient composition, intermittent fasting, and popular diets. Nutrition. (2020) 69:110549. doi: 10.1016/j.nut.2019.07.001

PubMed Abstract | CrossRef Full Text | Google Scholar

8. Muscogiuri G, Barrea L, Laudisio D, Pugliese G, Salzano C, Savastano S, et al. The management of very low-calorie ketogenic diet in obesity outpatient clinic: a practical guide. J Trans Med. (2019) 17:356. doi: 10.1186/s12967-019-2104-z

PubMed Abstract | CrossRef Full Text | Google Scholar

9. Caprio M, Infante M, Moriconi E, Armani A, Fabbri A, Mantovani G, et al. Very-low-calorie ketogenic diet [VLCKD] in the management of metabolic diseases: systematic review and consensus statement from the Italian Society of Endocrinology [SIE]. J Endocrinol Invest. (2019) 42:1365–86. doi: 10.1007/s40618-019-01061-2

CrossRef Full Text | Google Scholar

10. Bueno NB, de Melo IS, de Oliveira SL, da Rocha Ataide T. Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomized controlled trials. Br J Nutr. (2013) 110:1178–87.21. doi: 10.1017/S0007114513000548

CrossRef Full Text | Google Scholar

11. Paoli A, Rubini A, Volek JS, Grimaldi KA. Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate [ketogenic] diets. Eur J Clin Nutr. (2013) 67:789–96. doi: 10.1038/ejcn.2013.116

CrossRef Full Text | Google Scholar

12. Cicero AF, Benelli M, Brancaleoni M, Dainelli G, Merlini D, Negri R. Middle and long-term impact of a very low-carbohydrate ketogenic diet on cardiometabolic factors: a multi-center, cross-sectional, clinical study. High Blood Press Cardiovasc Prev. (2015) 22:389–94. doi: 10.1007/s40292-015-0096-1

PubMed Abstract | CrossRef Full Text | Google Scholar

13. Moreno B, Bellido D, Sajoux I, Goday A, Saavedra D, Crujeiras AB, et al. Comparison of a very low-calorie-ketogenic diet with a standard low-calorie diet in the treatment of obesity. Endocrine. (2014) 47:793–805. doi: 10.1007/s12020-014-0192-3

PubMed Abstract | CrossRef Full Text | Google Scholar

14. Merra G, Miranda R, Barrucco S, Gualtieri P, Mazza M, Moriconi E, et al. Very-low-calorie ketogenic diet with aminoacid supplement versus very low restricted-calorie diet for preserving muscle mass during weight loss: a pilot double-blind study. Eur Rev Med Pharmacol Sci. (2016) 20:2613–21.

PubMed Abstract | Google Scholar

15. Bistrian DR, Winterer J, Blackburn GL, Young V, Sherman M. Effect of a protein-sparing diet and brief fast on nitrogen metabolism in mildly obese subjects. J Lab Clin Med. (1977) 89:1030–5.

PubMed Abstract

16. Blackburn GL, Bray GA. Management of Obesity by Severe Caloric Restriction. Littleton: PSG Publishing Company, Inc. (1985).

Google Scholar

17. Avenell A, Brown TJ, McGee MA, Campbell MK, Grant AM, Broom J, et al. What are the long term benefits of weight reducing diets in adults? A systematic review of randomized controlled trials. J Hum Nutr Diet. (2004) 17:317–35. doi: 10.1111/j.1365-277X.2004.00531.x

CrossRef Full Text | Google Scholar

18. Walters JK, Hoogwerf BJ, Reddy SS. The protein sparing modified fast for obesity-related medical problems. Cleve Clin J Med. (1997) 64:242–4 doi: 10.3949/ccjm.64.5.242

PubMed Abstract | CrossRef Full Text | Google Scholar

19. Bakhach M, Shah V, Harwood T, Lappe S, Bhesania N, Mansoor S, et al. The protein-sparing modified fast diet: an effective and safe approach to induce rapid weight loss in severely obese adolescents. Glob Pediatr Health. (2016) 3:2333794X15623245. doi: 10.1177/2333794X15623245

PubMed Abstract | CrossRef Full Text | Google Scholar

20. Styne DM, Arslanian SA, Connor EL, Farooqi IS, Murad MH, Silverstein JH. Pediatric obesity-assessment, treatment, and prevention: an endocrine society clinical practice guideline. J Clin Endocrinol Metab. (2017) 102:709–57. doi: 10.1210/jc.2016-2573

PubMed Abstract | CrossRef Full Text | Google Scholar

21. Van Gaal LF, Snyders D, De Leeuw IH, Bekaert JL. Anthropometric and calorimetric evidence for the protein sparing effects of a new protein supplemented low calorie preparation. Am J Clin Nutr. (1985) 41:540–4. doi: 10.1093/ajcn/41.3.540

PubMed Abstract | CrossRef Full Text | Google Scholar

22. Martin WF, Cerundolo LH, Pikosky MA, Gaine PC, Maresh CM, Armstrong LE, et al. Effects of dietary protein intake on indexes of hydration. J Am Dietetic Assoc. (2006) 106:587–9. doi: 10.1016/j.jada.2006.01.011

PubMed Abstract | CrossRef Full Text | Google Scholar

23. Walrand S, Short KR, Bigelow ML, Sweatt AJ, Hutson SM, Nair KS. Functional impact of high protein intake on healthy elderly people. Am J Physiol Endocrinol Metab. (2008) 295:E921–8. doi: 10.1152/ajpendo.90536.2008

PubMed Abstract | CrossRef Full Text | Google Scholar

24. Reddy ST, Wang CY, Sakhaee K, Brinkley L, Pak CY. Effect of low-carbohydrate high-protein diets on acid-base balance, stone-forming propensity, and calcium metabolism. Am J Kidney Dis. (2002) 40:265–74. doi: 10.1053/ajkd.2002.34504

PubMed Abstract | CrossRef Full Text | Google Scholar

25. Poplawski MM, Mastaitis JW, Isoda F, Grosjean F, Zheng F, Mobbs CV. Reversal of diabetic nephropathy by a ketogenic diet. PLoS ONE. (2011) 6:e18604. doi: 10.1371/journal.pone.0018604

PubMed Abstract | CrossRef Full Text | Google Scholar

26. Festi D, Colecchia A, Larocca A, Villanova N, Mazzella G, Petroni ML, et al. Review: low caloric intake and gall-bladder motor function. Alimentary Pharmacol Ther. (2000) 14 (Suppl. 2):51–3. doi: 10.1046/j.1365-2036.2000.014s2051.x

PubMed Abstract | CrossRef Full Text | Google Scholar

27. Bonjour JP. Dietary protein: an essential nutrient for bone health. J Am Coll Nutr. (2005) 24:526S−36S. doi: 10.1080/07315724.2005.10719501

PubMed Abstract | CrossRef Full Text | Google Scholar

28. Darling AL, Millward DJ, Torgerson DJ, Hewitt CE, Lanham-New SA. Dietary protein and bone health: a systematic review and meta-analysis. Am J Clin Nutr. (2009) 90:1674–92. doi: 10.3945/ajcn.2009.27799

PubMed Abstract | CrossRef Full Text | Google Scholar

29. Weber DD, Aminazdeh-Gohari S, Kofler B. Ketogenic diet in cancer therapy. Aging. (2018) 10:164–5. doi: 10.18632/aging.101382

CrossRef Full Text | Google Scholar

30. Weber DD, Aminzadeh-Gohari S, Tulipan J, Catalano L, Feichtinger RG, Kofler B. Ketogenic diet in the treatment of cancer – Where do we stand? Mol Metab. (2019) 33:102–21. doi: 10.1016/j.molmet.2019.06.026

PubMed Abstract | CrossRef Full Text | Google Scholar

31. Woolf EC, Scheck AC. The ketogenic diet for the treatment of malignant glioma. J Lipid Res. (2015) 56:5–10. doi: 10.1194/jlr.R046797

PubMed Abstract | CrossRef Full Text | Google Scholar

32. Bartmann C, Janaki Raman SR, Flöter J, Schulze A, Bahlke K, Willingstorfer J, et al. Beta-hydroxybutyrate [3-OHB] can influence the energetic phenotype of breast cancer cells, but does not impact their proliferation and the response to chemotherapy or radiation. Cancer Metab. (2018) 6:8. doi: 10.1186/s40170-018-0180-9

CrossRef Full Text | Google Scholar

33. Abdelwahab MG, Fenton KE, Preul MC, Rho JM, Lynch A, Stafford P, et al. The ketogenic diet is an effective adjuvant to radiation therapy for the treatment of malignant glioma. PLoS ONE. (2012) 7:e36197. doi: 10.1371/journal.pone.0036197

PubMed Abstract | CrossRef Full Text | Google Scholar

34. Winter SF, Loebel F, Dietrich J. Role of ketogenic metabolic therapy in malignant glioma: a systematic review. Crit Rev Oncol Hematol. (2017) 112:41–58. doi: 10.1016/j.critrevonc.2017.02.016

PubMed Abstract | CrossRef Full Text | Google Scholar

35. van der Louw EJTM, Olieman JF, van den Bemt PMLA, Bromberg JEC, Oomen-de Hoop E, Neuteboom RF, et al. Ketogenic diet treatment as adjuvant to standard treatment of glioblastoma multiforme: a feasibility and safety study. Ther Adv Med Oncol. (2019) 11:1758835919853958. doi: 10.1177/1758835919882584

PubMed Abstract | CrossRef Full Text | Google Scholar

36. Schwartz KA, Noel M, Nikolai M, Chang HT. Investigating the ketogenic diet as treatment for primary aggressive brain cancer: challenges and lessons learned. Front Nutr. (2018) 5:11. doi: 10.3389/fnut.2018.00011

PubMed Abstract | CrossRef Full Text | Google Scholar

37. Rieger J, Bähr O, Maurer GD, Hattingen E, Franz K, Brucker D, et al. ERGO: a pilot study of ketogenic diet in recurrent glioblastoma. Int J Oncol. (2014) 44:1843–52. doi: 10.3892/ijo.2014.2382

PubMed Abstract | CrossRef Full Text | Google Scholar

38. Kossoff EH, Dorward JL. The modified Atkins diet. Epilepsia. (2008) 49:37–41. doi: 10.1111/j.1528-1167.2008.01831.x

CrossRef Full Text | Google Scholar

39. Gardner CD, Kiazand A, Alhassan S, Kim S, Stafford RS, Balise RR, et al. Comparison of the Atkins, Zone, Ornish, and LEARN diets for change in weight and related risk factors among overweight premenopausal women: the A TO Z Weight Loss Study: a randomized trial. JAMA. (2007) 297:969–77. doi: 10.1001/jama.297.9.969

PubMed Abstract | CrossRef Full Text | Google Scholar

40. Shai I, Schwarzfuchs D, Henkin Y, Shahar DR, Witkow S, Greenberg I, et al. Weight loss with a low-carbohydrate, Mediterranean, or low-fat diet. N Engl J Med. (2008) 359:229–41. doi: 10.1056/NEJMoa0708681

CrossRef Full Text | Google Scholar

41. Westerterp-Plantenga MS, Lemmens SG, Westerterp KR. Dietary protein—its role in satiety, energetics, weight loss and health. Br J Nutr. (2012) 108:S105–12. doi: 10.1017/S0007114512002589

PubMed Abstract | CrossRef Full Text | Google Scholar

42. Gardner CD, Trepanowski JF, Del Gobbo LC, Hauser ME, Rigdon J, Ioannidis JPA, et al. Effect of low-fat vs low-carbohydrate diet on 12-month weight loss in overweight adults and the association with genotype pattern or insulin secretion: the DIETFITS randomized clinical trial. JAMA. (2018) 319:667–79. doi: 10.1001/jama.2018.0245

PubMed Abstract | CrossRef Full Text | Google Scholar

43. Truby H, Baic S, deLooy A, Fox KR, Livingstone MBE, Logan CM, et al. Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC “diet trials.” BMJ. (2006) 332:1309–14. doi: 10.1136/bmj.38833.411204.80

PubMed Abstract | CrossRef Full Text | Google Scholar

44. Dalle Grave R, Calugi S, Gavasso I, El Ghoch M, Marchesini G. A randomized trial of energy-restricted high-protein versus high-carbohydrate, low-fat diet in morbid obesity. Obesity. (2013) 21:1774–81. doi: 10.1002/oby.20320

PubMed Abstract | CrossRef Full Text | Google Scholar

45. Mansoor N, Vinknes KJ, Veierød MB, Retterstøl K. Effects of low-carbohydrate diets v. low-fat diets on body weight and cardiovascular risk factors: a metaanalysis of randomised controlled trials. Br J Nutr. (2016) 115:466–79. doi: 10.1017/S0007114515004699

PubMed Abstract | CrossRef Full Text | Google Scholar

46. Retterstøl K, Svendsen M, Narverud I, Holven KB. Effect of low carbohydrate high fat diet on LDL cholesterol and gene expression in normal-weight, young adults: a randomized controlled study. Atherosclerosis. (2018) 279:52–61. doi: 10.1016/j.atherosclerosis.2018.10.013

PubMed Abstract | CrossRef Full Text | Google Scholar

47. Sacks FM, Bray GA, Carey VJ, Smith SR, Ryan DH, Anton SD, et al. Comparison of weight-loss diets with different compositions of fat, protein, and carbohydrates. N Engl J Med. (2009) 360:859–73. doi: 10.1056/NEJMoa0804748

PubMed Abstract | CrossRef Full Text | Google Scholar

48. Eaton SB, Konner M. Paleolithic nutrition. A consideration of its nature and current implications. N Engl J Med. (1985) 312:283–9. doi: 10.1056/NEJM198501313120505

PubMed Abstract | CrossRef Full Text | Google Scholar

49. Cordain L, Eaton SB, Sebastian A, Mann N, Lindeberg S, Watkins BA, et al. Origins and evolution of the Western diet: health implications for the 21st century. Am J Clin Nutr. (2005) 81:341–54. doi: 10.1093/ajcn.81.2.341

PubMed Abstract | CrossRef Full Text | Google Scholar

50. Cordain L, Miller JB, Eaton SB, Mann N, Holt SH, Speth JD. Plant-animal subsistence ratios and macronutrient energy estimations in worldwide hunter gatherer diets. Am J Clin Nutr. (2000) 71:682–92. doi: 10.1093/ajcn/71.3.682

PubMed Abstract | CrossRef Full Text | Google Scholar

51. Pastore RL, Brooks JT, Carbone JW. Paleolithic nutrition improves plasma lipid concentrations of hypercholesterolemic adults to a greater extent than traditional heart-healthy dietary recommendations. Nutr Res. (2015) 35:474–9. doi: 10.1016/j.nutres.2015.05.002

PubMed Abstract | CrossRef Full Text | Google Scholar

52. Manheimer EW, van Zuuren EJ, Fedorowicz Z, Pijl H. Paleolithic nutrition for metabolic syndrome: systematic review and meta-analysis. Am J Clin Nutr. (2015) 102:922–32. doi: 10.3945/ajcn.115.113613

PubMed Abstract | CrossRef Full Text | Google Scholar

53. Jonsson T, Ahr_en B, Pacini G, Sundler F, Wierup N, Steen S, et al. A Paleolithic diet confers higher insulin sensitivity, lower C-reactive protein and lower blood pressure than a cereal-based diet in domestic pigs. Nutr Metab. (2006) 3:39. doi: 10.1186/1743-7075-3-39

PubMed Abstract | CrossRef Full Text | Google Scholar

54. Jonsson T, Granfeldt Y, Ahr_en B, Branell US, Palsson G, Hansson A, et al. Beneficial effects of a Paleolithic diet on cardiovascular risk factors in type 2 diabetes: a randomized cross-over pilot study. Cardiovasc Diabetol. (2009) 8:35. doi: 10.1186/1475-2840-8-35

PubMed Abstract | CrossRef Full Text | Google Scholar

55. Ghaedi E, Mohammadi M, Mohammadi H, Ramezani-Jolfaie N, Malekzadeh J, Hosseinzadeh M, et al. Effects of a Paleolithic diet on cardiovascular disease risk factors: a systematic review and meta-analysis of randomized controlled trials. Adv Nutr. (2019) 10:634–46. doi: 10.1093/advances/nmz007

PubMed Abstract | CrossRef Full Text | Google Scholar

56. Jonsson T, Granfeldt Y, Erlanson-Albertsson C, Ahrén B, Lindeberg S. A Paleolithic diet is more satiating per calorie than a mediterranean-like diet in individuals with ischemic heart disease. Nutr Metab. (2010) 7:85. doi: 10.1186/1743-7075-7-85

PubMed Abstract | CrossRef Full Text | Google Scholar

57. Bligh HF, Godsland IF, Frost G, Hunter KJ, Murray P, MacAulay K, et al. Plantrich mixed meals based on Palaeolithic diet principles have a dramatic impact on incretin, peptide YY and satiety response, but show little effect on glucose and insulin homeostasis: an acute-effects randomised study. Br J Nutr. (2015) 113:574–84. doi: 10.1017/S0007114514004012

PubMed Abstract | CrossRef Full Text | Google Scholar

58. Spreadbury I. Comparison with ancestral diets suggests dense acellular carbohydrates promote an inflammatory microbiota, and may be the primary dietary cause of leptin resistance and obesity. Diabetes Metab Syndr Obes. (2012) 5:175–89. doi: 10.2147/DMSO.S33473

PubMed Abstract | CrossRef Full Text | Google Scholar

59. Jonsson T, Granfeldt Y, Lindeberg S, Hallberg AC. Subjective satiety and other experiences of a Paleolithic diet compared to a diabetes diet in patients with type 2 diabetes. Nutr J. (2013) 12:105. doi: 10.1186/1475-2891-12-105

PubMed Abstract | CrossRef Full Text | Google Scholar

60. Osterdahl M, Kocturk T, Koochek A, W€andell PE. Effects of a short-term intervention with a paleolithic diet in healthy volunteers. Eur J Clin Nutr. (2008) 62:682–5. doi: 10.1038/sj.ejcn.1602790

PubMed Abstract | CrossRef Full Text | Google Scholar

61. Otten J, Stomby A, Waling M, Isaksson A, Tellstrom A, Lundlin-Olsson L, et al. Benefits of a Paleolithic diet with and without supervised exercise on fat mass, insulin sensitivity, and glycemic control: a randomized controlled trial in individuals with type 2 diabetes. Diabetes Metab Res Rev. (2017) 33:e2828. doi: 10.1002/dmrr.2828

PubMed Abstract | CrossRef Full Text | Google Scholar

62. Mellberg C, Sandberg S, Ryberg M, Eriksson M, Brage S, Larsson C, et al. Long term effects of a Palaeolithic-type diet in obese postmenopausal women: a 2-year randomized trial. Eur J Clin Nutr. (2014) 68:350–7. doi: 10.1038/ejcn.2013.290

PubMed Abstract | CrossRef Full Text | Google Scholar

63. Otten J, Mellberg C, Ryberg M, Sandberg S, Kullberg J, Lindahl B, et al. Strong and persistent effect on liver fat with a Paleolithic diet during a two-year intervention. Int J Obes. (2016) 40:747–53. doi: 10.1038/ijo.2016.4

PubMed Abstract | CrossRef Full Text | Google Scholar

64. Manousou S, Sta_ l M, Larsson C, Mellberg C, Lindahl B, Eggersten R, et al. A Paleolithic-type diet results in iodine deficiency: a 2-year randomized trial in postmenopausal obese women. Eur J Clin Nutr. (2018) 72:124–9. doi: 10.1038/ejcn.2017.134

PubMed Abstract | CrossRef Full Text | Google Scholar

65. Pitt CE. Cutting through the Paleo hype: the evidence for the Palaeolithic diet. Aust Fam Physician. (2016) 45:35–8.

PubMed Abstract | Google Scholar

66. Mattson MP, Moehl K, Ghena N, Schmaedick M, Cheng A. Intermittent metabolic switching, neuroplasticity and brain health. Nat Rev Neurosci. (2018) 19:63–80. doi: 10.1038/nrn.2017.156

PubMed Abstract | CrossRef Full Text | Google Scholar

67. Halberg N, Henriksen M, S€oderhamn N, Stallknecht B, Ploug T, Schjerling P, et al. Effect of intermittent fasting and refeeding on insulin action in healthy men. J Appl Physiol. (2005) 99:2128–36. doi: 10.1152/japplphysiol.00683.2005

PubMed Abstract | CrossRef Full Text | Google Scholar

68. Varady KA, Bhutani S, Church EC, Klempel MC. Short-term modified alternate- day fasting: a novel dietary strategy for weight loss and cardioprotection in obese adults. Am J Clin Nutr. (2009) 90:1138–43. doi: 10.3945/ajcn.2009.28380

PubMed Abstract | CrossRef Full Text | Google Scholar

69. Eshghinia S, Mohammadzadeh F. The effects of modified alternate-day fasting diet on weight loss and CAD risk factors in overweight and obese women. J Diabetes Metab Disord. (2013) 12:4. doi: 10.1186/2251-6581-12-4

PubMed Abstract | CrossRef Full Text | Google Scholar

70. Anson RM, Guo Z, de Cabo R, Iyun T, Rios M, Hagepanos A, et al. Intermittent fasting dissociates beneficial effects of dietary restriction on glucose metabolism and neuronal resistance to injury from calorie intake. Proc Natl Acad Sci USA. (2003) 100:6216–20. doi: 10.1073/pnas.1035720100

PubMed Abstract | CrossRef Full Text | Google Scholar

71. Varady KA. Intermittent versus daily calorie restriction: which diet regimen is more effective for weight loss? Obes Rev. (2011) 12:e593–601. doi: 10.1111/j.1467-789X.2011.00873.x

PubMed Abstract | CrossRef Full Text | Google Scholar

72. Johnson JB, Summer W, Cutler RG, Martin B, Hyun DH, Dixit VD, et al. Alternate day calorie restriction improves clinical findings and reduces markers of oxidative stress and inflammation in overweight adults with moderate asthma. Free Radic Biol Med. (2007) 42:665–74. doi: 10.1016/j.freeradbiomed.2006.12.005

PubMed Abstract | CrossRef Full Text | Google Scholar

73. Cheng CW, Villani V, Buono R, Wei M, Kumar S, Yilmaz OH, et al. Fasting-mimicking diet promotes Ngn3-driven β-cell regeneration to reverse diabetes. Cell. (2017) 168:775–88.e12. doi: 10.1016/j.cell.2017.01.040

PubMed Abstract | CrossRef Full Text | Google Scholar

74. Mager DE, Wan R, Brown M, Cheng A, Wareski P, Abernathy DR, et al. Caloric restriction and intermittent fasting alter spectral measures of heart rate and blood pressure variability in rats. FASEB J. (2006) 20:631–7. doi: 10.1096/fj.05-5263com

PubMed Abstract | CrossRef Full Text | Google Scholar

75. de Groot S, Vreeswijk MP, Welters MJ, Gravesteijn G, Boei JJ, Jochems A, et al. The effects of short-term fasting on tolerance to [neo] adjuvant chemotherapy in HER2-negative breast cancer patients: a randomised pilot study. BMC Cancer. (2015) 15:652. doi: 10.1186/s12885-015-1663-5

CrossRef Full Text | Google Scholar

76. Dorff TB, Groshen S, Garcia A, Shah M, Tsao-Wei D, Pham H, et al. Safety and feasibility of fasting in combination with platinum-based chemotherapy. BMC Cancer. (2016) 16:360. doi: 10.1186/s12885-016-2370-6

PubMed Abstract | CrossRef Full Text | Google Scholar

77. Bauersfeld SP, Kessler CS, Wischnewsky M, Jaensch A, Steckhan N, Stange R, et al. The effects of short-term fasting on quality of life and tolerance to chemotherapy in patients with breast and ovarian cancer:a randomised cross-over pilot study. BMC Cancer. (2018) 18:476. doi: 10.1186/s12885-018-4353-2

CrossRef Full Text | Google Scholar

78. Arends J, Bachmann P, Baracos V, Barthelemy N, Bertz H, Bozzetti F, et al. ESPEN guidelines on nutrition in cancer patients. Clin Nutr. (2017) 36:11–48. doi: 10.1016/j.clnu.2016.07.015

PubMed Abstract | CrossRef Full Text | Google Scholar

79. Fontana L, Patridge L. Promoting health and longevity through diet: from model organisms to humans, Cell. (2015) 161:106–18. doi: 10.1016/j.cell.2015.02.020

CrossRef Full Text | Google Scholar

80. Holloszy JO, Fontana L. Caloric restriction in humans. Exp Gerontol. (2007) 42:709–12. doi: 10.1016/j.exger.2007.03.009

CrossRef Full Text | Google Scholar

81. Dirks AJ, Leeuwenburgh C. Caloric restriction in humans: potential pitfalls and health concerns. Mech Ageig Dev. (2006) 127:1–7. doi: 10.1016/j.mad.2005.09.001

PubMed Abstract | CrossRef Full Text | Google Scholar

82. Das SK, Roberts SB, Bhapkar MV, Villareal DT, Fontana L, Martin CK, et al. Body-composition changes in the comprehensive assessment of long-term effects of reducing intake of energy [CALERIE]-2 study: a 2-y randomised controlled trial of calorie restriction in non obese humans. Am J Clin Nutr. (2017) 105:913–27. doi: 10.3945/ajcn.116.137232

CrossRef Full Text | Google Scholar

83. Jospe MR, Roy M, Brown RC, Haszard JJ, Meredith-Jones K, Fangupo LJ, et al. Intermittent fasting, Paleolithic, or Mediterranean diets in the real world: exploratory secondary analyses of a weight-loss trial that included choice of diet and exercise. Am J Clin Nutr. 111:503–14. doi: 10.1093/ajcn/nqz330

PubMed Abstract | CrossRef Full Text | Google Scholar

84. Headland M, Clifton P, Carter S, Keogh J. Weight-loss outcomes: a systematic review and meta-analysis of intermittent energy restriction trials lasting a minimum of 6 months. Nutrients. (2016) 8:354. doi: 10.3390/nu8060354

PubMed Abstract | CrossRef Full Text | Google Scholar

85. Antoni R, Johnston KL, Collins AL, Robertson MD. Effects of intermittent fasting on glucose and lipid metabolism. Proc Nutr Soc. (2017) 76:361–8. doi: 10.1017/S0029665116002986

PubMed Abstract | CrossRef Full Text | Google Scholar

86. Goodrick CL, Ingram DK, Reynolds MA, Freeman JR, Cider N. Effects of intermittent feeding upon body weight and lifespan in inbred mice: interaction of genotype and age. Mech Ageing Dev. (1990) 55:69–87. doi: 10.1016/0047-6374(90)90107-Q

PubMed Abstract | CrossRef Full Text | Google Scholar

87. Catenacci VA, Pan Z, Ostendorf D, Brannon S, Gozansky WS, Mattson MP, et al. A randomized pilot study comparing zero-calorie alternate-day fasting to daily caloric restriction in adults with obesity. Obesity. (2016) 24:1874–83. doi: 10.1002/oby.21581

CrossRef Full Text | Google Scholar

88. Harvie MN, Pegington M, Mattson MP, Frystyk J, Dillon B, Evans G, et al. The effects of intermittent or continuous energy restriction on weight loss and metabolic disease risk markers: a randomized trial in young overweight women. Int J Obes. (2011) 35:714–27. doi: 10.1038/ijo.2010.171

PubMed Abstract | CrossRef Full Text | Google Scholar

89. Higashida K, Fujimoto E, Higuchi M, Terada S. Effects of alternate-day fasting on high-fat diet-induced insulin resistance in rat skeletal muscle. Life Sci. (2013) 93:208–13. doi: 10.1016/j.lfs.2013.06.007

PubMed Abstract | CrossRef Full Text | Google Scholar

90. McNeil J, Mamlouk MM, Duval K, Schwartz A, Nardo Junior N, Doucet E. Alterations in metabolic profile occur in normal-weight and obese men during the Ramadan fast despite no changes in anthropometry. J Obes. (2014) 2014:482547. doi: 10.1155/2014/482547

PubMed Abstract | CrossRef Full Text | Google Scholar

91. Sadeghirad B, Motaghipisheh S, Kolahdooz F, Zahedi MJ, Haghdoost AA. Islamic fasting and weight loss: a systematic review and meta-analysis. Public Health Nutr. (2014) 17:396–406. doi: 10.1017/S1368980012005046

PubMed Abstract | CrossRef Full Text | Google Scholar

92. Baumeier C, Kaiser D, Heeren J, Scheja L, John C, Weise C, et al. Caloric restriction and intermittent fasting alter hepatic lipid droplet proteome and diacylglycerol species and prevent diabetes in NZO mice. Biochim Biophys Acta. (2015) 1851:566–76. doi: 10.1016/j.bbalip.2015.01.013

PubMed Abstract | CrossRef Full Text | Google Scholar

93. Soeters MR, Lammers NM, Dubbelhuis PF, Ackermans M, Jonkers-Schuitema CF, Fliers E, et al. Intermittent fasting does not affect whole-body glucose, lipid, or protein metabolism. Am J Clin Nutr. (2009) 90:1244–51. doi: 10.3945/ajcn.2008.27327

CrossRef Full Text | Google Scholar

94. Hatori M, Vollmers C, Zarrinpar A, DiTacchio L, Bushong EA, Gill S, et al. Timerestricted feeding without reducing caloric intake prevents metabolic diseases in mice fed a high-fat diet. Cell Metab. (2012) 15:848–60. doi: 10.1016/j.cmet.2012.04.019

PubMed Abstract | CrossRef Full Text | Google Scholar

95. Chaix A, Zarrinpar A, Miu P, Panda S. Time-restricted feeding is a preventative and therapeutic intervention against diverse nutritional challenges. Cell Metab. (2014) 20:991–1005. doi: 10.1016/j.cmet.2014.11.001

PubMed Abstract | CrossRef Full Text | Google Scholar

96. Chowdhury EA, Richardson JD, Tsintzas K, Thompson D, Betts JA. Effect of extended morning fasting upon ad libitum lunch intake and associated metabolic and hormonal responses in obese adults. Int J Obes. (2016) 40:305–11. doi: 10.1038/ijo.2015.154

PubMed Abstract | CrossRef Full Text | Google Scholar

97. Moro T, Tinsley G, Bianco A, Marcolin G, Pacelli QF, Battaglia G, et al. Effects of eight weeks of time-restricted feeding [16/8] on basal metabolism, maximal strength, body composition, inflammation, and cardiovascular risk factors in resistance-trained males. J Transl Med. (2016) 14:290. doi: 10.1186/s12967-016-1044-0

CrossRef Full Text

98. Sutton EF, Beyl R, Early KS, Cefalu WT, Ravussin E, Peterson CM. Early timerestricted feeding improves insulin sensitivity, blood pressure, and oxidative stress even without weight loss in men with prediabetes. Cell Metab. (2018) 27:1212–21.e1213. doi: 10.1016/j.cmet.2018.04.010

PubMed Abstract | CrossRef Full Text | Google Scholar

99. Kul S, Savas E, €Ozt€urk ZA, Karada_g G. Does Ramadan fasting alter body weight and blood lipids and fasting blood glucose in a healthy population? A metaanalysis. J Relig Health. (2014) 53:929–42. doi: 10.1007/s10943-013-9687-0

CrossRef Full Text | Google Scholar

100. Liu H, Javaheri A, Godar RJ, Murphy J, Ma X, Rohatgi N, et al. Intermittent fasting preserves beta-cell mass in obesity-induced diabetes via the autophagylysosome pathway. Autophagy. (2017) 13:1952–68. doi: 10.1080/15548627.2017.1368596

PubMed Abstract | CrossRef Full Text | Google Scholar

101. Bhutani S, Klempel MC, Kroeger CM, Trepanowski JF, Varady KA. Alternate day fasting and endurance exercise combine to reduce body weight and favorably alter plasma lipids in obese humans. Obesity. (2013) 21:1370–9. doi: 10.1002/oby.20353

PubMed Abstract | CrossRef Full Text | Google Scholar

102. Greenway FL. Physiological adaptations to weight loss and factors favouring weight regain. Int J Obes. (2015) 39:1188e96. doi: 10.1038/ijo.2015.59

PubMed Abstract | CrossRef Full Text | Google Scholar

103. Varady KA, Hellerstein MK. Alternate-day fasting and chronic disease prevention: a review of human and animal trials. Am J Clin Nutr. (2007) 86:7e13. doi: 10.1093/ajcn/86.1.7

PubMed Abstract | CrossRef Full Text | Google Scholar

104. Klempel MC, Kroeger CM, Varady KA. Alternate day fasting [ADF] with a high-fat diet produces similar weight loss and cardioprotection as ADF with a low-fat diet. Metabolism. (2013) 62:137e43. doi: 10.1016/j.metabol.2012.07.002

CrossRef Full Text | Google Scholar

105. Harris L, McGarty A, Hutchison L, Ells L, Hankey C. Short-term intermittent energy restriction interventions for weight management: a systematic review and meta-analysis. Obes Rev. (2017) 19:1–13. doi: 10.1111/obr.12593

PubMed Abstract | CrossRef Full Text | Google Scholar

106. Al-Hourani HM, Atoum MF. Body composition, nutrient intake and physical activity patterns in young women during Ramadan. Singapore Med J. (2007) 48:906–10.

PubMed Abstract | Google Scholar

107. Hajek P, Myers K, Dhanji AR, West O, McRobbie H. Weight change during and after Ramadan fasting. J Public Health. (2012) 34:377–81. doi: 10.1093/pubmed/fdr087

PubMed Abstract | CrossRef Full Text | Google Scholar

108. Yucel A, Degirmenci B, Acar M, Albayrak R, Haktanir A. The effect of fasting month of Ramadan on the abdominal fat distribution: assessment by computed tomography. Tohoku J Exp Med. (2004) 204:179–87. doi: 10.1620/tjem.204.179

PubMed Abstract | CrossRef Full Text | Google Scholar

109. Lamri-Senhadji MY, El Kebir B, Belleville J, Bouchenak M. Assessment of dietary consumption and time-course of changes in serum lipids and lipoproteins before, during and after Ramadan in young Algerian adults. Singapore Med J. (2009) 50:288–94.

PubMed Abstract | Google Scholar

110. Fahrial Syam A, Suryani Sobur C, Abdullah M, Makmun D. Ramadan fasting decreases body fat but not protein mass. Int J Endocrinol Metab. (2016) 14:e29687. doi: 10.5812/ijem.29687

PubMed Abstract | CrossRef Full Text | Google Scholar

111. Wei M, Brandhorst S, Shelehchi M, Mirzaei H, Cheng CW, Budniak J, et al. Fasting-mimicking diet and markers/risk factors for aging, diabetes, cancer, and cardiovascular disease. Sci Transl Med. (2017) 9:eaai8700. doi: 10.1126/scitranslmed.aai8700

PubMed Abstract | CrossRef Full Text | Google Scholar

112. Newman JC, Verdin E. Ketone bodies as signaling metabolites. Trends Endocrinol Metab. (2014) 25:42–52. doi: 10.1016/j.tem.2013.09.002

CrossRef Full Text | Google Scholar

113. Lu Z, Die J, Wu G, Shen J, Collins R, Chen W, et al. Fasting selectively blocks development of acute lymphoblastic leukaemia via leptin-receptor upregulation. Nat Med. (2017) 23:79–90. doi: 10.1038/nm.4252

PubMed Abstract | CrossRef Full Text | Google Scholar

114. Raffaghello L, Lee C, Safdie FM, Wei M, Madia F, Bianchi G, et al. Starvation-dependent differential stress resistance protects normal but not cancer cells against high-dose chemotherapy. Proc Natl Acad Sci USA. (2008) 105:8215–20. doi: 10.1073/pnas.0708100105

PubMed Abstract | CrossRef Full Text | Google Scholar

115. Nencioni A, Caffa I, Cortellino S, Longo VD. Fasting and cancer: molecular mechanisms and clinical application. Nat Rev Cancer. (2018) 18:707–19. doi: 10.1038/s41568-018-0061-0

PubMed Abstract | CrossRef Full Text | Google Scholar

116. Wilde L, Roche M, Domingo-Vidal M, Tanson K, Philp N, Curry J, et al. Metabolic coupling and the Reverse Warburg Effect in cancer: implications for novel biomarker and anticancer agent development. Semin Oncol. (2017) 44:198–203. doi: 10.1053/j.seminoncol.2017.10.004

PubMed Abstract | CrossRef Full Text | Google Scholar

117. Nwosu ZC, Ebert MP, Dooley S, Meyer C. Caveolin-1 in the regulation of cell metabolism: a cancer perspective. Mol Cancer. (2016) 15:71. doi: 10.1186/s12943-016-0558-7

PubMed Abstract | CrossRef Full Text | Google Scholar

118. Vander Heiden MG, Cantley LC, Thompson CB. Understanding the Warburg effect: the metabolic requirements of cell proliferation. Science. (2009) 324:1029–33. doi: 10.1126/science.1160809

PubMed Abstract | CrossRef Full Text | Google Scholar

119. Bovenzi CD, Hamilton J, Tassone P, Johnson J, Cognetti DM, Luginbuhl A, et al. Prognostic indications of elevated MCT4 and CD147 across cancer types: a meta-analysis. BioMed Res Int. (2015) 2015:242437. doi: 10.1155/2015/242437

PubMed Abstract | CrossRef Full Text | Google Scholar

120. Kalaany NY, Sabatini DM. Prognostic indications of elevated MCT4 and CD147 across cancer types: tumours with PI3K activation are resistant to dietary restriction. Nature. (2009) 458:725–31. doi: 10.1038/nature07782

CrossRef Full Text | Google Scholar

121. Caffa I, Spagnolo V, Vernieri C, Valdemarin F, Becherini P, Wei M, et al. Fasting-mimicking diet and hormone therapy induce breast cancer regression. Nature. (2020) 583:620–4. doi: 10.1038/s41586-020-2502-7

PubMed Abstract | CrossRef Full Text | Google Scholar

122. Lis CG, Gupta D, Lammersfeld CA, Markman M, Vashi PG. Role of nutritional status in predicting quality of life outcomes in cancer—A systematic review of the epidemiological literature. Nutr J. (2012) 11:27. doi: 10.1186/1475-2891-11-27

PubMed Abstract | CrossRef Full Text | Google Scholar

123. Sukkar SG, Giacosa A, Frascio F. Clinical validation of bioelectrical impedance [BIA] in malnourished cancer patients. RINPE. (1993) 11:78–88.

124. Grundmann O, Yoon S, Williams J. The value of bioelectrical impedance analysis and phase angle in the evaluation of malnutrition and quality of life in cancer patients—a comprehensive review. Eur J Clin Nutr. (2015) 69:1290–7. doi: 10.1038/ejcn.2015.126

PubMed Abstract | CrossRef Full Text | Google Scholar

 

Creatine

Creatine

New in the world of research

Creatine has been proven to be a valuable supplement when it comes to increasing muscle and recovery, but new research may conclude possible cognitive benefits. More research has come out regarding the protective benefits of creatine monohydrate and the brain. Possible protective benefits include protective properties for neurodegenerative disease, amyotrophic lateral sclerosis, muscular dystrophy, Huntington’s disease, multiple sclerosis, Parkinson’s, overall mental health, depression, anxiety and post-traumatic stress disorder, 

We’ve known for some time about the benefits of creatine and increasing muscle mass, but….It wasn’t until recently did we learn about the benefits for the brain and heart. 95% of creatine storage is in the muscle and the remaining 5% is stored in the heart and brain. Supplementing with creatine significantly benefits optimal healthy creatine levels. Creatine possesses anti-oxidant, anti-apoptotic, and anti-excitotoxic properties. Clinical research on neurodegenerative illnesses has shown that Creatine supplementation results in less effective outcomes. 

 

Benefits

Our Recommendations

Recent publications shown healthy brain creatine levels may improve mitochondrial function and improve oxidative stress, which may be relevant treatments for neurodegenerative diseases , including Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS).

SOURCES:

Chang H, Leem YH. The potential role of creatine supplementation in neurodegenerative diseases. Phys Act Nutr. 2023 Dec;27(4):48-54. doi: 10.20463/pan.2023.0037. Epub 2023 Dec 31. PMID: 38297476; PMCID: PMC10844727.

Antonio J, Candow DG, Forbes SC, Gualano B, Jagim AR, Kreider RB, Rawson ES, Smith-Ryan AE, VanDusseldorp TA, Willoughby DS, Ziegenfuss TN. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? J Int Soc Sports Nutr. 2021 Feb 8;18(1):13. doi: 10.1186/s12970-021-00412-w. PMID: 33557850; PMCID: PMC7871530.

Wax B, Kerksick CM, Jagim AR, Mayo JJ, Lyons BC, Kreider RB. Creatine for Exercise and Sports Performance, with Recovery Considerations for Healthy Populations. Nutrients. 2021 Jun 2;13(6):1915. doi: 10.3390/nu13061915. PMID: 34199588; PMCID: PMC8228369.

Wu SH, Chen KL, Hsu C, Chen HC, Chen JY, Yu SY, Shiu YJ. Creatine Supplementation for Muscle Growth: A Scoping Review of Randomized Clinical Trials from 2012 to 2021. Nutrients. 2022 Mar 16;14(6):1255. doi: 10.3390/nu14061255. PMID: 35334912; PMCID: PMC8949037.

Forbes SC, Cordingley DM, Cornish SM, Gualano B, Roschel H, Ostojic SM, Rawson ES, Roy BD, Prokopidis K, Giannos P, Candow DG. Effects of Creatine Supplementation on Brain Function and Health. Nutrients. 2022 Feb 22;14(5):921. doi: 10.3390/nu14050921. PMID: 35267907; PMCID: PMC8912287.

Forbes SC, Candow DG, Neto JHF, Kennedy MD, Forbes JL, Machado M, Bustillo E, Gomez-Lopez J, Zapata A, Antonio J. Creatine supplementation and endurance performance: surges and sprints to win the race. J Int Soc Sports Nutr. 2023 Dec;20(1):2204071. doi: 10.1080/15502783.2023.2204071. PMID: 37096381; PMCID: PMC10132248.

Stares A, Bains M. The Additive Effects of Creatine Supplementation and Exercise Training in an Aging Population: A Systematic Review of Randomized Controlled Trials. J Geriatr Phys Ther. 2020 Apr/Jun;43(2):99-112. doi: 10.1519/JPT.0000000000000222. PMID: 30762623.

Kreider RB, Kalman DS, Antonio J, Ziegenfuss TN, Wildman R, Collins R, Candow DG, Kleiner SM, Almada AL, Lopez HL. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017 Jun 13;14:18. doi: 10.1186/s12970-017-0173-z. PMID: 28615996; PMCID: PMC5469049.

 

Hibiscus sabdariffa

Hibiscus

Burn fat with hibiscus tea

Why Hibiscus Tea?

Hibiscus Sabdariffa has been traditionally in herbal drinks as well as in the food industry and herbal medicine. New research has shown that drinking 1-2 cups of hibiscus tea and INCREASE FAT OXIDATION in humans. Meaning, hibiscus tea significant effects in lipid metabolism, and may help prevent diabetes. Another study found that drinking about 240-ml of hibiscus tea eat day for 6 weeks found significant improvement in lowering blood pressure. Hibiscus sabdariffa has been studied in lowering blood pressure and cholesterol, and during studies, they found those who drank hibiscus tea experienced greater weight loss. 

Weight loss

People lost more weight even though they were consuming the same amount of calories

Lower Bloodpressure

May lower bloodpressue

Antioxidant

Rich in powerful antioxidants

Increase fat loss

Increase fat metabolism

Energy balance

May block some of the fat storing process

Balance hormones

May help regulate hormone balance.

Check out More

Sure, you can use hibiscus in the supplement form, but it’s recommended to drink the tea instead due to the possible toxicity of consuming too much. 

Combine with lemon verbena, and you have a powerful fat burning drink

Sources: 

McKay DL, Chen CY, Saltzman E, Blumberg JB. Hibiscus sabdariffa L. tea (tisane) lowers blood pressure in prehypertensive and mildly hypertensive adults. J Nutr. 2010 Feb;140(2):298-303. doi: 10.3945/jn.109.115097. Epub 2009 Dec 16. PMID: 20018807.

Mozaffari-Khosravi H, Jalali-Khanabadi BA, Afkhami-Ardekani M, Fatehi F, Noori-Shadkam M. The effects of sour tea (Hibiscus sabdariffa) on hypertension in patients with type II diabetes. J Hum Hypertens. 2009 Jan;23(1):48-54. doi: 10.1038/jhh.2008.100. Epub 2008 Aug 7. PMID: 18685605.

Da-Costa-Rocha I, Bonnlaender B, Sievers H, Pischel I, Heinrich M. Hibiscus sabdariffa L. – a phytochemical and pharmacological review. Food Chem. 2014 Dec 15;165:424-43. doi: 10.1016/j.foodchem.2014.05.002. Epub 2014 May 27. PMID: 25038696.

Buchholz T, Melzig MF. Medicinal Plants Traditionally Used for Treatment of Obesity and Diabetes Mellitus – Screening for Pancreatic Lipase and α-Amylase Inhibition. Phytother Res. 2016 Feb;30(2):260-6. doi: 10.1002/ptr.5525. Epub 2015 Dec 3. PMID: 26632284.

Herranz-López M, Olivares-Vicente M, Encinar JA, Barrajón-Catalán E, Segura-Carretero A, Joven J, Micol V. Multi-Targeted Molecular Effects of Hibiscus sabdariffa Polyphenols: An Opportunity for a Global Approach to Obesity. Nutrients. 2017 Aug 20;9(8):907. doi: 10.3390/nu9080907. PMID: 28825642; PMCID: PMC5579700.

Chang HC, Peng CH, Yeh DM, Kao ES, Wang CJ. Hibiscus sabdariffa extract inhibits obesity and fat accumulation, and improves liver steatosis in humans. Food Funct. 2014 Apr;5(4):734-9. doi: 10.1039/c3fo60495k. Epub 2014 Feb 19. PMID: 24549255.

Kao ES, Yang MY, Hung CH, Huang CN, Wang CJ. Polyphenolic extract from Hibiscus sabdariffa reduces body fat by inhibiting hepatic lipogenesis and preadipocyte adipogenesis. Food Funct. 2016 Jan;7(1):171-82. doi: 10.1039/c5fo00714c. PMID: 26489044.

Ojulari OV, Lee SG, Nam JO. Beneficial Effects of Natural Bioactive Compounds from Hibiscus sabdariffa L. on Obesity. Molecules. 2019 Jan 8;24(1):210. doi: 10.3390/molecules24010210. PMID: 30626104; PMCID: PMC6337177.

 

Quercetin

Quercetin

Recently, neuroinflammation is thought to be one of the important causes of many neuropsychiatric diseases. Quercetin is a natural flavonoid, and it is well known that quercetin has antioxidative, anti-inflammatory, and neuroprotective effects. Quercetin contains antioxidants called flavonoids that bond to free radicals and neutralize them. 

Benefits of Quercetin

Daily intake of quercetin significantly improved anxiety-like behaviors and reduced inflammatory markers in the brain. Additional benefits include reducing risks of heart disease, cancer, and degenerative brain disorders. An 8-week study  in 50 women with rheumatoid arthritis observed that participants who took 500 mg of quercetin experienced significantly reduced early morning stiffness, morning pain, and after-activity pain.

In a review of test-tube and animal studies, quercetin was found to suppress cell growth and induce cell death in prostate cancer cells.

Other test-tube and animal studies observed that the compound had similar effects in liver, lung, breast, bladder, blood, colon, ovarian, lymphoid, and adrenal cancer cells.

Benefits

Quercetin

Quercetin is also available as a dietary supplement in capsules, tablets, powders and extract

Brands we recommend

Sources:

Burdeos, Johna. “What Is Quercetin? Benefits, Foods and Side Effects.” Forbes, Forbes Magazine, 5 Jan. 2024,

www.forbes.com/health/supplements/quercetin/.

Lee B, Yeom M, Shim I, Lee H, Hahm DH. Protective Effects of Quercetin on Anxiety-Like Symptoms and Neuroinflammation Induced by Lipopolysaccharide in Rats. Evid Based Complement Alternat Med. 2020 Apr 28;2020:4892415. doi: 10.1155/2020/4892415. PMID: 32419805; PMCID: PMC7204389.
 
Anand David AV, Arulmoli R, Parasuraman S. Overviews of Biological Importance of Quercetin: A Bioactive Flavonoid. Pharmacogn Rev. 2016 Jul-Dec;10(20):84-89. doi: 10.4103/0973-7847.194044. PMID: 28082789; PMCID: PMC5214562.
 
 

Rhodiola Rosea

Rhodiola rosea

 Science-Backed Health Benefits

What is it?

Rhodiola Rosea is a popular plant in traditional medical systems in the Nordic countries, Eastern Europe, and Asia. It belongs to the family of Crassulaceae with notoriety for stimulating physical endurance, attention span, memory, and work productivity . The genus Rhodiola contains more than 100 different species, and at least 20 of these are used in traditional Asian medicine . However, the most of all animal and human studies have been conducted on RR, so whether other species confer the same health benefits is unknown .Research studies on the RR root phytochemistry have revealed the presence of six distinct groups of chemical compounds: phenylpropanoids (rosavin, rosin, and rosarin), phenylethanol derivatives (salidroside and tyrosol), flavonoids (rhodiolin, rhodionin, rodiosin, acetylrodalgin, and tricin), monoterpernes (rosiridol and rosaridin), triterpenes (daucosterol and beta-sitosterol), and phenolic acids (chlorogenic, hydroxycinnamic, and gallic acids) Rhodiola rosea L., also known as “golden root” or “roseroot,” belongs to the plant family Crassulaceae. RR grows primarily in dry sandy ground at high altitudes in the arctic areas of Europe and Asia. The plant reaches a height of 12–30 inches (70 cm) and produces yellow blossoms. It is a perennial with a thick rhizome and fragrant when cut. The Greek physician, Dioscorides, first recorded medicinal applications of rodia riza in CE 77 in De Materia Medica. The traditional use of RR as a tonic in Siberian and Russian medicine stimulated extensive research leading to identification of RR as an adaptogen—a substance that nonspecifically increases the resistance of an organism and does not disturb normal biological parameters.

Rhodiola show increased levels of beta-endorphin in the brain. Beta-endorphin is the stress-relieving, feel-good, analgesic peptide

Benefits of Rhodiola

The main effects of genus Rhodiola described are adaptogenic, that means “natural herbal products that are nontoxic in normal doses produce a nonspecific response and have a normalizing physiologic influence,” and stress protective. Moreover, Rhodiola has been described as an antioxidant, antitumor, antidepressive, neuroprotective, cardioprotective, hepatoprotective, and immunostimulating agent. Many other benefits from the use of RR have been found, including its ability to regulate blood sugar levels for diabetics and to activate the lipolytic processes. Although detailed molecular mechanism of the lipid-lowering and antiinflammation effects of salidroside are to be identified, in vivo studies on high-fat diet–fed LDLr−/−mice demonstrated that this RR compound reduced serum lipid levels and decreased atherosclerotic plaque formation. A number of studies have shown that RR increased physical work capacity and dramatically shortened the recovery time between bouts of high-intensity exercise.

Rhodiola seems to reduce anxiety and various stress symptoms, particularly fatigue, while simultaneously improving cognitive and physical performance in stressful situations.

Top

Brands

Rhodiola supplements are low in cost but high in value

Thorne

$17

Double Wood

$18

Life Extension

$12.75

Benefits

The main effects of genus Rhodiola described are adaptogenic, that means “natural herbal products that are nontoxic in normal doses produce a nonspecific response and have a normalizing physiologic influence,” and stress protective. Moreover, Rhodiola has been described as an antioxidant, antitumor, antidepressive, neuroprotective, cardioprotective, hepatoprotective, and immunostimulating agent.

Antioxidant

Synthesizing proteins involved in stress resistance

Antitumor

Enhancing physical and mental resilience and performance in times of stress.

Antidepressive

Reduce anxiety and various stress symptoms.

Sources

[1] Panossian A, Wikman G, Wagner H. Plant adaptogens. III. Earlier and more recent aspects and concepts on their modes of action.
Phytomedicine 1999;6(4):287–300.
[2] Panossian A, Wikman G, Wagner H. Effects of adaptogens on the central nervous system and the molecular mechanisms associated with their
stress-protective activity. Pharmaceuticals 2010;3:188–224.
[3] Elliott GR, Eisdorfer C, editors. Conceptual issues in stress research. Stress and human health: analysis and implications of research.
New York: Springer; 1982.
[4] Panossian A, Gabrielian E, Wagner H. On the mechanism of action of plant adaptogens with particular reference to Cucurbitacin R diglucoside.Phytomedicine 1999;6:147–155.
[5] Panossian A, Wagner H. Adaptogens. A review of their history, biological activity, and clinical benefits. HerbalGram 2012;90:52–63.
[6] Panossian A, Hamm R, Wikman G, et al. Synergy and antagonism of active constituents of ADAPT-232 on transcriptional level of metabolic
regulation in isolated neuroglia cells. Front Neurosci 2013;7:16.
[7] Panossian A, Hamm R, Kadioglu O, et al. Mechanism of action of Rhodiola, salidroside, tyrosol and triandrin in isolated neuroglial cells: an
interactive pathway analysis of the downstream effects using RNA microarray data. Phytomedicine 2014;21:1325–1348.
[8] Cho J, Park W, Lee S. Ginsenoside-Rb1 from Panax ginseng C.A. Meyer activates estrogen receptor-alphaand -beta, independent of ligand
binding. J Clin Endocrinol Metab 2004;2004(89):3510–5.
[9] Panossian A, Seo EJ, Wikman G, et al. Synergy assessment of fixed combinations of Herba Andrographidis and Radix Eleutherococci extracts
by transcriptome-wide microarray profiling. Phytomedicine 2015;22:981–92.
[10] Panossian A. Adaptogen:tonic herbs for fatigue and stress. Alternative and Complementary Therapies 2003;9(6):327–31.
[11] Panossian A, Wagner H. Adaptogens. A review of their history, biological activity, and clinical benefits. HerbalGram 2011;90:52–63.
[12] Panossian A, Wikman G, Kaur P, et al. Adaptogens stimulate neuropeptide Y and HSP72 expression and release in neuroglia cells. Front
Neurosci 2009;6:6.
[13] Panossian A, Wikman G, Sarris J. Rosenroot (Rhodiola rosea):traditional use, chemical composition, pharmacology and clinical efficacy.
Phytomedicine 2010;17:481–93.
[14] Panossian A., Gerbar P. Potential Use of Plant Adaptogens in Age-Related Disorders. Complementary and Integrative Therapies for Mental
Health and Aging. New York: Oxford university press; 2016, pp. 197–211.
[15] Abascal K, Yarnell E. Increasing vitality with adaptogens: multifaceted herbs for treating physical and mental stress. Altern Complement
Ther 2003;9(2):54–60.
[16] Bagchi D, Nair S, Sen CK. Nutrition and enhanced sports performance: muscle building, endurance, and strength. Academic Press; 2013.
[17] Molinos Domene Á. Effects of adaptogen supplementation on sport performance. A recent review of published studies. 2013.
[18] Panossian A, Wikman G. Pharmacology of Schisandra chinensis Bail.: an overview of Russian research and uses in medicine. J Ethnopharmacol
2008;118:183–212.
[19] Kraemer WJ, Ratamess NA. Fundamentals of resistance training: progression and exercise prescription. Med Sci Sports Exerc 2004:674–88.
[PubMed].
[20] Singh N, Nath R, Lata A, Singh SP, Kohli RP, Bhargava KP. (Ashwagandha), a rejuvenating herbal drug which enhances survival during
stress (an adaptogen). Pharmaceut Biol 1982:29–35.
[21] Kulkarni SK, Dhir A. Withania somnifera: an Indian ginseng. Prog Neuro Psychopharmacol Biol Psychiatr 2008:1093–105. [PubMed].
[22] Sharma S, Dahanukar SA, Karandikar SM. Effects of long term administration of the roots of ashwagandha and shatavari in rats. Indian
Drugs 1985;29:1339.
[23] Prakash J, Gupta SK, Dinda AK. Withania somnifera root extract prevents DMBA-induced squamous cell carcinoma of skin in Swiss albino
mice. Nutr Cancer 2002;42:91–7.
[24] Singh A, Naidu PS, Gupta S, Kulkarni SK. Effect of natural and synthetic antioxidants in a mouse model of chronic fatigue syndrome. J Med
Food 2002;5:211–220.

Davis L, Kuttan G. Immunomodulatory activity of Withania somnifera. J Ethnopharmacol 2000;71(1–2):193–200.
[26] Davis L, Kuttan G. Effect of Withania somnifera on cytokine production in normal and cyclophosphamide treated mice. Immunopharmacol
Immunotoxicol 1999;21(4):695–703.
[27] Archana R, Namasivayam A. Antistressor effect of Withania somnifera. J Ethnopharmacol 1999;64(1):91–3.
[28] Chandrasekhar K, Kapoor J, Anishetty S. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a highconcentration
full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med 2012;34(3):255–62.
https://doi.org/10.4103/0253-7176.106022. [PMC free article] [PubMed] [Cross Ref].
[29] Ambiye R, Langade D, Dongre S, Aptikar P, Kulkarni M, Dongre A. Clinical evaluation of the spermatogenic activity of the root extract
of Ashwagandha (Withania somnifera) in oligospermic males: A Pilot Study. In: Evidence-based complementary and alternative medicine.
November 2013;2013:1–7.
[30] Bhattacharya SK, Satyan KS, Ghosal S. Antioxidant activity of glycowithanolides from Withania somnifera. Indian J Exp Biol 1997;35:236–9.
[31] Kapoor LD. Handbook of Ayurvedic Medicinal Plants: Herbal Reference Library. Boca Raton (FL): CRC Press; 2000. p. 337.
[32] Upadhyay L, Tiwari AK, Agrawal A, Dubey GP. Stress-induced changes in brain level of biogenic amines modified by an indigenous drug.
Act Nerv Super (Praha) 1990;32(2):128–9.
[33] Ghosal S, et al. Immunomodulatory and CNS effects of sitoindosides IX and X, two new glycowithanolides from Withania somnifera. Phytother
Res 1989;3(5):201–6.
[34] Bhattacharya SK, Goel RK, Kaur R, Ghosal S. Anti-stress activity of sitoindosides VII and VIII. New acylsterylglucosides from Withania somnifera.
Phytother Res 1987;1:32–7.
[35] Changhadi Govardhan Sharma. Ashwagandharishta – Rastantra Sar Evam Sidhyaprayog Sangrah – Krishna-Gopal Ayurveda Bhawan
(Dharmarth Trust), Nagpur; 1938, p. 743–744.
[36] Gautam A, Wadhwa R, Thakur MK, Shah N, Widodo N, Nakamoto T. Involvement of hippocampal Arc in amnesia and its recovery by alcoholic
extract of ashwagandha leaves. Neurobiol Learn Mem 2013;106(10):177–84.
[37] Ghosal S, Srivastava RS, Bhattacharya SK, Upadhyay SN, Jaiswal AK, Chattopadhyay U. Immunomodulatory and CNS effects of sitoindosides
IX and X, two new glycowithanolides form Withania somnifera. Phytother Res 1989;2:201–206.
[38] Atta-ur-Rahman, Jamal AS, Choudhary MI, Asif I. Two withanolides from Withania somnifera. Phytochem 1991;30:3824–5.
[39] Sale DG, Singh BB, Dagenais S. Neural adaptation to resistance trainingWithania somnifera. Med Sci Sports Exerc 1988;20
(5 Suppl.):S135–45.
[40] Staron RS, Karapondo DL, Kraemer WJ, Fry AC, Gordon SE, El FJ, Hagerman FC, Hikida RS. Skeletal muscle adaptations during early phase
of heavy-resistance training in men and womenWithania somnifera. J Appl Physiol 1994;76:1247–55. [PubMed].
[41] Chodzko-Zajko WJ, Proctor DN, Fiatarone Singh MA, Minson CT, Nigg CR, Salem GJ, Skinner JS. American College of Sports Medicine position
stand. Progression models in resistance training for healthy adults. Med Sci Sports Exerc 2009;41(3):687–708.
[42] Raut AA, Rege NN, Tadvi FM, Solanki PV, Kene KR, Shirolkar SG, et al. Exploratory study to evaluate tolerability, safety, and activity of
Ashwagandha (Withania somnifera) in healthy volunteers. J Ayurveda Integr Med 2012;3:111–4.
[43] Sandhu JS, Shah B, Shenoy S, Chauhan S, Lavekar GS, Padhi MM. Effects of Withania somnifera (Ashwagandha) and Terminalia arjuna (Arjuna)
on physical performance and cardiorespiratory endurance in healthy young adults. Int J Ayurveda Res 2010;1(5 Suppl.):144–9.
[44] Shenoy S, Chaskar U, Sandhu JS, Paadhi MM, Gordon SE, El FJ, Hagerman FC, Hikida RS. Effects of eight-week supplementation of ashwagandha
on cardiorespiratory endurance in elite Indian cyclists. J Ayurveda Integr Med 2012;3:209–214.
[45] Tiwari R, Chakraborty S, Saminathan M, Dhama K, Singh SV. Ashwagandha (Withania somnifera): Role in Safeguarding Health,
Immunomodulatory Effects, Combating Infections and Therapeutic Applications: A Review. J Biol Sci 2014;14:77–94.
[46] Dubichev AG, Kurkin BA, Zapesochnaya GG, Vornotzov ED. Study of Rhodiola rosea root chemical composition using HPLC. Cemico Pharm J
1991;2:188–93.
[47] Ishaque S, Shamseer L, Bukutu C, Vohra S. Rhodiola rosea for physical and mental fatigue: a systematic review. BMC Complement Altern Med
2012;12(70):2–9.
[48] Brown RP, Gerbarg PL, Graham B. The Rhodiola revolution: transform your health with the herbal breakthrough of the 21st Century.
Emmaus, PA USA: Rodale Press; 2005.
[49] Morgan M, Bone K, Shenoy S, Chauhan S, Lavekar GS, Padhi MM. Rhodiola rosea-RhodiolaTerminalia arjuna. MediHerb Newslett
2005;47:1–4.
[50] Brown RP, Gerbarg PL, Ramazanov Z. Rhodiola rosea. A phytomedicinal overview. HerbalGram 2002;56:40–52.
[51] Kelly GS. Rhodiola rosea: a possible plant adaptogen. Altern Med Rev 2001;6:293–302.
[52] Xie JT, McHendale S, Yuan CS. Ginseng and diabetes. Am J Chin Med 2005;33(3):397–404.
[53] De Bock K, Eijnde BO, Ramaekers M, Hespel P. Acute Rhodiola rosea intake can improve endurance exercise performance. Int J Sport Nutr
Exerc Metab 2004;14:298–307.
[54] Olsson EMG, von Schéele B, Panossian AG. A randomised, double-blind, placebo-controlled, parallel-group study of the standardised extract
shr-5 of the roots of Rhodiola rosea in the treatment of subjects with stress-related fatigue. Planta Med 2009;75:105–12.
[55] Chen CH, Chan HC, Chu YT, Ho HY, Chen PY, et al. Antioxidant activity of some plant extracts towards xanthine oxidase, lipoxygenase and
tyrosinaseRhodiola rosea. Molecules 2009;14:2947–58.
[56] Calcabrini C, De Bellis R, Mancini U, Cucchiarini L, Potenza L, et al. Rhodiola rosea ability to enrich cellular antioxidant defences of cultured
human keratinocytes. Arch Dermatol Res 2010;302:191–200.
[57] Yang L, Wu J, Chen H, Li H, Tang Y, et al. Antidepressant potential of chlorogenic acid-enriched extract from Eucommia ulmoides Oliver bark
with neuron protection and promotion of serotonin release through enhancing synapsin I expression. Molecules 2016;21:1–17.
[58] Zhang BC, Li WM, Guo R, Xu YW. Salidroside decreases atherosclerotic plaque formation in low-density lipoprotein receptor deficient mice.
Evid Based Complement Altern Med 2012:607508.
[59] Ross SM. Rhodiola rosea (SHR-5), Part 2: a standardized extract of Rhodiola rosea is shown to be effective in the treatment of mild to moderate
depression. Holist Nurs Pract 2014;28:217–21.
[60] Ding Z, Lu W, Li H, Fu J, Piao Z. Simultaneous determination of five lignans in Schisandra chinensis by HPLC. Zhongguo Zhong Yao Za Zhi
2010;35(13):1728–30.

Chen S-P, Liu RH, Tsong-Ming L, Wei JC-C, Tzu-Chin W, Tsai W-Y, Yang C-C. Complementary usage of Rhodiola crenulata (L.) in chronic
obstructive pulmonary disease patients: the effects on Cytokines and T cells. Phytother Res 2015;29:518–25.
[62] Yang L, Scott KA, Hyun J, Tamashiro KL, Tray N, Moran TH, Bi S. Role of dorsomedial hypothalamic neuropeptide Y in modulating food
intake and energy balance. J Neurosci 2009;29:179–90.
[63] Nan JX, Song EK, Kim JH, Kim JS, Cho H. Hepatoprotective phenolic constituents of Rhodiola sachalinensis on tacrine-induced cytotoxicity in
Hep G2 cells. Phytother Res 2003;17:563–5.
[64] Nan JX, Wu YL, Lian LH, Jiang YZ. Hepatoprotective effects of salidroside on fulminant hepatic failure induced by D-galactosamine and
lipopolysaccharide in mice. J Pharm Pharmacol 2009;61:1375–82.
[65] Bany J, Zdanowska D, Skopinska-Rózewska E, Sommer E, Siwicki AK, Wasiutynski A. The effect of Rhodiola rosea extracts on the bacterial
infection in mice. Centr Eur J Immunol 2009;34:35–7.
[66] Siwicki AK, Skopinska-Rózewska E, Wasiutynski A, Wójcik R, Zdanowski R, et al. The effect of Rhodiola kirilowii extracts on pigs’ blood
leukocytes metabolic (RBA) and proliferative (LPS) activity, and on the bacterial infection and blood leukocytes number in mice. Centr Eur J
Immunol 2012;37:145–50.
[67] Mishra KP, Ganju L, Singh SB, Ho HY, Chen PY. Anti-cellular and immunomodulatory potential of aqueous extract of Rhodiola imbricata
rhizome. Immunopharmacol Immunotoxicol 2012;34:513–8.
[68] Kim S-H, Lee H-S. Antibacterial Activity of Silver-nanoparticles Against Staphylococcus aureus and Escherichia coli Korean J Microbiol
Biotechnol 2011;39(1):77–85.
[69] Xu J, Li Y. Effects of salidroside on exhaustive exercise-induced oxidative stress in rats. Mol Med Rep 2012;6(5):1195–8.
[70] Saratikov AS, Krasnov EA. The influence of Rhodiola on endocrineglands and the liver. Chapter VI. In: Saratikov AS, Krasnov EA, editors.
Rhodiola rosea is avaluable medicinal plant (Golden Root). Tomsk (Russia): Tomsk State University; 1987. p. 180–93.
[71] Salnik BU. Effect of several stimulators on central nervous system energy metabolism during muscular workload [dissertation]. Tomsk,
Russia: Tomsk State Medical Institute; 1970.
[72] Adamchuk LB. Effects of Rhodiola on the process of energetic recovery of rat under intense muscular workload [dissertation]. Tomsk, Russia:
Tomsk State Medical Institute; 1969.
[73] Danbueva EA, Effect of stimulators of the central nervous system on lipid metabolism at different muscular workloads [dissertation]. Tomsk,
Russia: Tomsk State Medical Institute; 1968.
[74] Kurkin VA, Dubishev AB, Titova IN. Neurotropic properties of some phytopreparations containing phenylpropanoids. Rastit Resursi
2003;3:115–22.
[75] Wiegant FA, Surinova S, Ytsma E, Langelaar–Makkinje M, Wikman G, Post JA. Plant adaptogens increase lifespan and stress resistance in
C.elegans. Biogerontology 2009;10:27–42.

Mikayla PCOS

Mikayla

Battling PCOS and my journey 

A daily Battle

It’s always been a dream of mine to start a family. As a child, I dreamed about having babies. However, I stopped taking birth control shortly after our wedding, and that’s when the battle began. 

I was diagnosed with Hypothyroidism at first, which is common for women. I notice something wasn’t right when I felt lethargic and started to gain weight.  I’ve always been thin, and I didn’t have any dietary changes, so I knew something was off. I started taking medication, but I still struggled to lose weight. After a couple meetings with an endocrinologist, I was also diagnosed with Polycystic Ovary Syndrome. (PCOS) For anyone trying to start a family, PCOS is real battle and struggle. Someone battling PCOS may experience excessive hair growth, thinning hair, acne, weight gain, and inflammation. 

Mik2
Mik3

Mikayla Waltamath

Fitness and Lifestyle coach

My dream of having a baby has become more of an uphill battle, and I have to work even harder to be able to create the right environment. For women battling PCOS, we need to stick together! Support is important, and lifestyle changes even more crucial. I’ve never had to worry about dieting or watch what I ate. I also ate in moderation, but now, I had to focus on macronutrients. I would often battle between feeling too inflamed to workout, and forcing myself to do it! It’ important for women with PCOS to maintain a healthy weight despite the additional struggles. 

It’s important for us to stay at a healthy weight, limit or completely eliminate simple carbohydrates, and be active with little flexibility. I’m not bragging when I say that I could eat almost anything and not have to worry about gaining a pound to now eating even better and still battling gaining weight. I have a very loving and supporting husband who is there for me, and he’s a fitness and health nut, but we still struggle with symptoms of PCOS. 

On most days, I eat less calories than required, and yet, I still end up feeling bloated. Certain foods cause my body to react differently, so it’s been a major lifestyle change. Although diet is one aspect, but my greatest struggle is fertility. I often think it’s not fair that all I’ve dreamed about was having a child, and it’s been a struggle. I’m here to say, LET’S NOT GIVE UP!

Support

Support is crucial, and making sure we’re in this together gives us hope. Follow me as we continue the battle with PCOS!

Berberine

The benefits of

Berberine

Berberine Benefits

Berberine is a plant alkaloid possessing scientifically determined mechanisms of the prevention of the development of atherosclerosis, type 2 diabetes, and obesity, as well as cardiovascular complications and cancer.

Should You take Berberine?

    Recently, a lot of claims have been made regarding the benefits of Berberine. Such claims are comparing Berberine to a popular weight loss drug, Ozempic. However, more research has shown the protective benefits of Berberine including prevention of cardiovascular disease and cancer. In addition to prevention, the benefits of Berberine have shown positive results for metabolic syndrome and diabetes. A recent study has confirmed the significance of its anticancer activity and its effectiveness in neurological, metabolic, and cardiovascular disorders. The compound has been subjected to multiple clinical evaluations in patients with the metabolic syndrome, and its use in related diseases

The fight between metabolic syndrome and insulin resistance! It’s important to focus on obesity and insulin resistance, which is a major component of obesity. Berberine may also help your body utilize glucose more effectively, which is a major problem with prediabetic patients. Berberine also enhances the expression of the AMPK-dependent adipose tissue triglyceride lipase, which is positively associated with long-term weight loss and is one of the mechanisms of action in the prevention of obesity. 

Benefits of Berberine

The primary benefits of Berberine is weight loss by improving glucose metabolism. Berberine has always been used in traditional medicine as a plant extract, but new research methods have established that berberine is a promising treatment for current diseases. A recent study has confirmed the significance of its anticancer activity and its effectiveness in neurological, metabolic, and cardiovascular disorders. 

Sources

Och A, Och M, Nowak R, Podgórska D, Podgórski R. Berberine, a Herbal Metabolite in the Metabolic Syndrome: The Risk Factors, Course, and Consequences of the Disease. Molecules. 2022 Feb 17;27(4):1351. doi: 10.3390/molecules27041351. PMID: 35209140; PMCID: PMC8874997.

Ye Y, Liu X, Wu N, Han Y, Wang J, Yu Y, Chen Q. Efficacy and Safety of Berberine Alone for Several Metabolic Disorders: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Front Pharmacol. 2021 Apr 26;12:653887. doi: 10.3389/fphar.2021.653887. PMID: 33981233; PMCID: PMC8107691.

 

Keto and Muscle

Is Keto the way to go?

Well, this would depend on your health goal and foods you like. The data proves that weight loss will occur regardless if you eat a low carbohydrate diet or a low fat diet. Reducing calories from a single source of macronutrients will aid in weight loss. It’s important to consider the types of foods you enjoy and if they fit into the higher carbohydrates – low fat or higher fat – low carbohydrate model. The foods you tend to enjoy will help you stay focused on your diet. For example, if you like eggs, meats, dairy, nuts and seeds, then it would be wise for you to go low carbohydrate. However, if you like oatmeal, rice, potatoes, and pasta, then it would be wise to go low fat -higher carbohydrates. The best diet is the one you’ll end up sticking with. 

What is Keto? Keto is short for ketogenesis, which is the process of creating ketone bodies to serve as a fuel source if glucose levels are too low. It should be advised that ketone synthesis reaction yields HMG CoA, which is a precursor of cholesterol. This concludes higher elevations of serum cholesterol as a result of being on a low carb diet. The theory behind keto is by limited glucose by means of carbohydrates, then the body will processes fat to sustain energy balance. 

How does our body burn fat? 
    In order for our body to obtain energy from fat, our body will break down triglycerides into fatty acids and glycerol. This process is known as lipolysis, and fatty acids are oxidized by B-oxidation into acetyl CoA. Acetyl CoA is used by the Krebs cycle to generate energy. Triglyceride molecule yield more energy than carbohydrates and are an important source of energy. Organs such as the brain require glucose in order to function. However, the body can use ketones as an alternative energy source to keep the brain functioning when glucose is limited. If ketones aren’t used, then they can be broken down into CO2 and acetone. Acetone is removed by means of exhalation, which may cause the breath of an individual to have sweet breath like alcohol. The carbon dioxide produced can acidify the blood, and could lead to diabetic ketoacidosis. 

The problem is carbohydrates and Fat together

When glucose levels are complete, acetyl CoA generated by glycolysis is converted into fatty acids, triglycerides, cholesterol, steroids, and bile salts. Lipogenesis creates fat from acetyl CoA generated from the Krebs cycle an place in the cytoplasm of adipocytes (Fat cells)  and hepatocytes. (Liver cells)  It would be recommended to not consume too many calories from fat and carbohydrates at the same time. The theory behind is both contribute to fuel sources for the body, and when glucose is in abundance, then the body will store the excess as fat. 

Issues with Keto Diet? 

Data has shown favorable biochemical and physiological effects during weight loss periods. However, there’s been studies to record endothelial function, C-reactive Protein and fat during maintenance level.  High fat diets, like the one Keto promotes has been shown to increase low-density lipoprotein, increase visceral obesity and metabolic syndrome proving the long term effects may not be favorable. However, saturated fat might be the source of the problem compared to unsaturated fat. There’s also a problem for men due to lower resting testosterone and greater cortisol levels post physical activity. A low carbohydrate diet over a long period of time may cause greater affects on the endocrine system. What about for women? In a randomize cross over study, women had reduced exercise performance in activities on a keto diet. Ketogenesis is a process to supply glucose to the organs that require glucose, and limited studies have shown the long term effects of being in this state. Data suggest an increased risk for metabolic syndrome. 

What's best for performance

This also depends on the type of physique or style of training you prefer. If you want a smaller, lean physique then eating a low carbohydrate diet and higher fat might work better for you. A ketogenetic style diet will limit glycogen in the muscle making the muscle look flatter.  If you enjoy moderate to low resistance training, jogging, and walking, then lower carbohydrates may work better for you depending on your level of performance. A low-carb diet might not be suited for a strength athlete or a long distance runners. The primary reason for this logic is due to the metabolic pathway to process energy by means of ATP for use by the body to power physiological processes. Glucose is the body’s most readily available source of energy. After digestion, the body breaks down polysaccharides into monosaccharides, which are transported from the small intestines to the circulatory system or stores the excess as glycogen stored in the muscle cell. Since glycogen is the primary energy source for easily expenditure, it’s valuable during exercise and weight training. Building muscle in a ketogenetic state is counterproductive. Eating carbohydrates is valuable when considering carbohydrates with a low glycemic index. A glycemic index is a metric used to determine the rate of breakdown. Simple sugar is very high whereas oatmeal is low. 

The Break Down (Science)

Key organs require glucose to function including the brain, and therefore it’s essential to maintain a minimum blood glucose level. The breakdown of carbohydrates from whole food sources packet with fiber and phytonutrients is preferred, and carbohydrate metabolism is an extensive process called Glycolysis. glycolysis is rather complex exchange of phosphates molecules referred to as the Krebs cycle to produce 4 ATP molecules. Carbohydrate metabolism involves multiple processes such as glycolysis, Krebs Cycle, and the electron transport chain. 

During times of starvation or low carbohydrate diets, the liver is able to synthesize new glucose from pyruvate, lactate, glycerol, or amino acids alanine or glutamine. This process is known as Gluconeogenesis. 

How does the body breakdown fat? Lipid metabolism begins in the intestine where triglycerides are broken down into fatty acids and monoglyceride molecule by means of pancreatic lipases. 

Final Take

Data shows, at least for short term, keto diets are safe and effective for losing weight. However, a reduction of calories from all macronutrients is the preferred method for weight loss. Some data concludes an adherence to a keto-diet proving the diet to be less effective the longer someone stays on the diet. To take advantages of both lipid and carbohydrates metabolism, carbohydrate and fat cycling would be the best approach. Carb- cycling is the method for alternating between high carb – low fat either on a weekly or monthly cycle. Ketogenic diets may help aid in weight loss because it’s easier for people to avoid one macronutrient than focus on reducing calories from all sources. However, data proves that weight loss occurs at the same rate regardless of high fat-low carb or high carb- low fat. Similar to the source of carbohydrates, the source of fat may play a crucial rule in the prevention of cardiovascular disease. 

Sources

Miller M, Beach V, Sorkin JD, Mangano C, Dobmeier C, Novacic D, Rhyne J, Vogel RA. Comparative effects of three popular diets on lipids, endothelial function, and C-reactive protein during weight maintenance. J Am Diet Assoc. 2009 Apr;109(4):713-7. doi: 10.1016/j.jada.2008.12.023. PMID: 19328268; PMCID: PMC2693202.

Ornish D. Comparison of diets for weight loss and heart disease risk reduction. JAMA. 2005 Apr 6;293(13):1589-90; author reply 1590-1. doi: 10.1001/jama.293.13.1589. PMID: 15811973.

Nordmann AJ, Nordmann A, Briel M, Keller U, Yancy WS Jr, Brehm BJ, Bucher HC. Effects of low-carbohydrate vs low-fat diets on weight loss and cardiovascular risk factors: a meta-analysis of randomized controlled trials. Arch Intern Med. 2006 Feb 13;166(3):285-93. doi: 10.1001/archinte.166.3.285. Erratum in: Arch Intern Med. 2006 Apr 24;166(8):932. PMID: 16476868.

Skytte MJ, Samkani A, Petersen AD, Thomsen MN, Astrup A, Chabanova E, Frystyk J, Holst JJ, Thomsen HS, Madsbad S, Larsen TM, Haugaard SB, Krarup T. A carbohydrate-reduced high-protein diet improves HbA1c and liver fat content in weight stable participants with type 2 diabetes: a randomised controlled trial. Diabetologia. 2019 Nov;62(11):2066-2078. doi: 10.1007/s00125-019-4956-4. Epub 2019 Jul 23. PMID: 31338545.

Tay J, Luscombe-Marsh ND, Thompson CH, Noakes M, Buckley JD, Wittert GA, Yancy WS Jr, Brinkworth GD. Comparison of low- and high-carbohydrate diets for type 2 diabetes management: a randomized trial. Am J Clin Nutr. 2015 Oct;102(4):780-90. doi: 10.3945/ajcn.115.112581. Epub 2015 Jul 29. PMID: 26224300.

Wachsmuth NB, Aberer F, Haupt S, Schierbauer JR, Zimmer RT, Eckstein ML, Zunner B, Schmidt W, Niedrist T, Sourij H, Moser O. The Impact of a High-Carbohydrate/Low Fat vs. Low-Carbohydrate Diet on Performance and Body Composition in Physically Active Adults: A Cross-Over Controlled Trial. Nutrients. 2022 Jan 18;14(3):423. doi: 10.3390/nu14030423. PMID: 35276780; PMCID: PMC8838503.

Wachsmuth NB, Aberer F, Haupt S, Schierbauer JR, Zimmer RT, Eckstein ML, Zunner B, Schmidt W, Niedrist T, Sourij H, Moser O. The Impact of a High-Carbohydrate/Low Fat vs. Low-Carbohydrate Diet on Performance and Body Composition in Physically Active Adults: A Cross-Over Controlled Trial. Nutrients. 2022 Jan 18;14(3):423. doi: 10.3390/nu14030423. PMID: 35276780; PMCID: PMC8838503.

Burke LM, Whitfield J, Heikura IA, Ross MLR, Tee N, Forbes SF, Hall R, McKay AKA, Wallett AM, Sharma AP. Adaptation to a low carbohydrate high fat diet is rapid but impairs endurance exercise metabolism and performance despite enhanced glycogen availability. J Physiol. 2021 Feb;599(3):771-790. doi: 10.1113/JP280221. Epub 2020 Aug 19. PMID: 32697366; PMCID: PMC7891450.

Whittaker J, Harris M. Low-carbohydrate diets and men’s cortisol and testosterone: Systematic review and meta-analysis. Nutr Health. 2022 Dec;28(4):543-554. doi: 10.1177/02601060221083079. Epub 2022 Mar 7. Erratum in: Nutr Health. 2022 Dec;28(4):783. PMID: 35254136; PMCID: PMC9716400.

Wroble KA, Trott MN, Schweitzer GG, Rahman RS, Kelly PV, Weiss EP. Low-carbohydrate, ketogenic diet impairs anaerobic exercise performance in exercise-trained women and men: a randomized-sequence crossover trial. J Sports Med Phys Fitness. 2019 Apr;59(4):600-607. doi: 10.23736/S0022-4707.18.08318-4. Epub 2018 Apr 4. PMID: 29619799.

Zdzieblik D, Friesenborg H, Gollhofer A, König D. A high carbohydrate diet with a low glycaemic index improves training effects in male endurance athletes. Int J Food Sci Nutr. 2022 Nov;73(7):965-972. doi: 10.1080/09637486.2022.2091525. Epub 2022 Jun 26. PMID: 35758204.

Thom G, Lean M. Is There an Optimal Diet for Weight Management and Metabolic Health? Gastroenterology. 2017 May;152(7):1739-1751. doi: 10.1053/j.gastro.2017.01.056. Epub 2017 Feb 15. PMID: 28214525.

White AM, Johnston CS, Swan PD, Tjonn SL, Sears B. Blood ketones are directly related to fatigue and perceived effort during exercise in overweight adults adhering to low-carbohydrate diets for weight loss: a pilot study. J Am Diet Assoc. 2007 Oct;107(10):1792-6. doi: 10.1016/j.jada.2007.07.009. PMID: 17904939.

Ong PJ, Dean TS, Hayward CS, Della Monica PL, Sanders TA, Collins P. Effect of fat and carbohydrate consumption on endothelial function. Lancet. 1999 Dec 18-25;354(9196):2134. doi: 10.1016/s0140-6736(99)03374-7. PMID: 10609824.

Nordmann AJ, Nordmann A, Briel M, Keller U, Yancy WS Jr, Brehm BJ, Bucher HC. Effects of low-carbohydrate vs low-fat diets on weight loss and cardiovascular risk factors: a meta-analysis of randomized controlled trials. Arch Intern Med. 2006 Feb 13;166(3):285-93. doi: 10.1001/archinte.166.3.285. Erratum in: Arch Intern Med. 2006 Apr 24;166(8):932. PMID: 16476868.

Sheikh, Mujeeb MD; Chahal, Mangeet MD; Rock-Willoughby, Jayme DO; Grubb, Blair P. MD. Carbohydrate-Restricted Diet and Acute Coronary Syndrome: A Case Report and Review of This Conflicting and Yet Unknown Association. American Journal of Therapeutics 21(2):p e41-e44, March/April 2014. | DOI: 10.1097/MJT.0b013e318235f1df

Anderson JW, Ward K. High-carbohydrate, high-fiber diets for insulin-treated men with diabetes mellitus. Am J Clin Nutr. 1979 Nov;32(11):2312-21. doi: 10.1093/ajcn/32.11.2312. PMID: 495550.

Parry SA, Woods RM, Hodson L, Hulston CJ. A Single Day of Excessive Dietary Fat Intake Reduces Whole-Body Insulin Sensitivity: The Metabolic Consequence of Binge Eating. Nutrients. 2017 Jul 29;9(8):818. doi: 10.3390/nu9080818. PMID: 28758920; PMCID: PMC5579612.

Are Carbs Bad

Are

Carbohydrates

Bad?

Low carb/ keto/ atkins, and now carnivore all promote weight loss, but is it truly weight loss or loss of weight from water and muscle? 

Carbohydrates

Do carbohydrates make us fat and do low carb diets work? 

Low Carb- High Fat

Do carbohydrates make us fat?

Simple answer is no, carbohydrates do not make us fat. A surplus of calories will make us gain weight, but carbohydrates alone will not. Of course there’s carbohydrates and BETTER carbohydrates. When carbohydrates are processed, the contents are normally isolated and stripped of fiber. Also known as refined carbohydrates, refers to the processes of removing fiber and other nutrients from the source for sugar.  Fructose and sucrose are the different types of sugars, and the body processes them differently. For example, an apple is very different than a bread although the carbohydrates might be the same. An apple contains fructose, fiber, and phytonutrients to slow the rate for your body to break down and turn into sugar. 

 

Carbohydrates and Fat

Two primary sources of energy for the body is fat and carbohydrates. The debate on whether low carbohydrates diets are superior to low fat diets are anecdotal. The data shows a reduction in calories from either source yields the same weight loss. In some models, a low fat diet lost a bit more weight the longer the diet was enforced. There’s the thermal affect of macronutrients and their contribution to weight gain.  Protein and carbohydrates contain 4 calories per-gram whereas fat contains 9 calories per-gram. Foods high in fat will naturally contain more calories than foods higher in protein and carbohydrates. The family of carbohydrates includes both simple and complex sugars. Glucose and fructose are simple sugars whereas starch, glycogen and cellulose are examples of complex sugars. 

The problem most people experience is high fats and high carbohydrates in combination can lead to more fat gain then adjusting or compensating for each source of energy. To further expand on this topic, a lot of processed foods contain high fat and carbohydrates, which leads to a calorie surplus. For example, foods like French fries are a starch fried in fat, and when you add more fat from cheese and meat in loaded fries, then you have a metabolic disaster. Of course, it tastes amazing because we’re naturally attracted to those types of foods. Fat metabolism is the oxidation of fatty acids to generate energy or form new fats from smaller molecules. Fat and carbohydrate metabolism are associated for products of glucose and can be converted into fat. 

Data shows that weight loss occurs by reducing calories from all sources of macronutrients.

L-theanine

L- Theanine

Why you should consider taking L- Theanine

L- theanine is the primary amino acid in tea leaves, and known for it’s calming affect. Although recent data shows it may also play an important role in immunity and prevention. Numerous cell and animal studies have proven that theanine plays an important role in reducing inflammation. Additionally, theanine may also help with nerve damage, gut health and prevention of tumors by regulating glutathione synthesis and the secretion of cytokine and neurotransmitters. 

Theanine may also improve cognitive performance and enhance working memory. In a study from 2021, researchers found a single dose of theanine reduced the reaction to attention to tasks, and increased the number of correct answers while decreasing the number of omission errors in working memory tasks. Another randomized, placebo controlled, crossover, and double-blind trial shown significant improvements in overall mental health while reducing stress. Overall, depression, anxiety and sleep scores all decreased and cognitive function scores improved of 4 weeks of 200mg taken daily. 

Citations:

Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study. J Med Food. 2021 Apr;24(4):333-341. doi: 10.1089/jmf.2020.4803. Epub 2021 Mar 22. PMID: 33751906; PMCID: PMC8080935.

Chen S, Kang J, Zhu H, Wang K, Han Z, Wang L, Liu J, Wu Y, He P, Tu Y, Li B. L-Theanine and Immunity: A Review. Molecules. 2023 May 1;28(9):3846. doi: 10.3390/molecules28093846. PMID: 37175254; PMCID: PMC10179891.

Dassanayake TL, Kahathuduwa CN, Weerasinghe VS. L-theanine improves neurophysiological measures of attention in a dose-dependent manner: a double-blind, placebo-controlled, crossover study. Nutr Neurosci. 2022 Apr;25(4):698-708. doi: 10.1080/1028415X.2020.1804098. Epub 2020 Aug 11. PMID: 32777998.

Lopes Sakamoto F, Metzker Pereira Ribeiro R, Amador Bueno A, Oliveira Santos H. Psychotropic effects of L-theanine and its clinical properties: From the management of anxiety and stress to a potential use in schizophrenia. Pharmacol Res. 2019 Sep;147:104395. doi: 10.1016/j.phrs.2019.104395. Epub 2019 Aug 11. PMID: 31412272.

Williams JL, Everett JM, D’Cunha NM, Sergi D, Georgousopoulou EN, Keegan RJ, McKune AJ, Mellor DD, Anstice N, Naumovski N. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review. Plant Foods Hum Nutr. 2020 Mar;75(1):12-23. doi: 10.1007/s11130-019-00771-5. PMID: 31758301.

Hidese S, Ogawa S, Ota M, Ishida I, Yasukawa Z, Ozeki M, Kunugi H. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients. 2019 Oct 3;11(10):2362. doi: 10.3390/nu11102362. PMID: 31623400; PMCID: PMC6836118.