tag: nutrition
20 proofs
Alkaline water or alkaline diets meaningfully improve health by counteracting body acidity
Sources: Harvard Health Publishing, MD Anderson Cancer Center, PMC — Schwalfenberg 2011, The Alkaline Diet, Journal of Environmental and Public Health +2 more
All ultra-processed foods are inherently unhealthy and should be avoided completely.
Sources: NHS (UK National Health Service) — What are processed foods?, Harvard T.H. Chan School of Public Health — The Nutrition Source: Processed Foods, Gibney MJ (2019), Ultra-Processed Foods: Definitions and Policy Issues, Current Developments in Nutrition, PMC6389637 +1 more
Artificial sweeteners such as aspartame and sucralose promote weight gain and metabolic disease.
Sources: Azad et al. 2017, CMAJ — Nonnutritive sweeteners and cardiometabolic health (PMC), Steffen et al. 2023, International Journal of Obesity (CARDIA Study) — Long-term artificial sweetener intake and adiposity (PubMed), Kuk & Brown 2016, Applied Physiology Nutrition and Metabolism — Aspartame intake and glucose tolerance in NHANES III (PubMed) +1 more
"Calories in, calories out" is the ONLY thing that matters for sustainable weight loss.
Sources: Influence of Sleep Restriction on Weight Loss Outcomes Associated with Caloric Restriction — PMC (Sleep, 2022), Adaptive thermogenesis in humans — PMC (International Journal of Obesity, 2013), Energy-balance studies reveal associations between gut microbes, caloric load, and nutrient absorption in humans — PMC (American Journal of Clinical Nutrition, 2011) +1 more
Carbohydrates, not dietary fat, are the main driver of obesity and type-2 diabetes.
Sources: Ludwig DS et al. (2018). The Carbohydrate-Insulin Model of Obesity: Beyond 'Calories In, Calories Out'. JAMA Internal Medicine / PMC., Ludwig DS (2023). Carbohydrate-insulin model: does the conventional view of obesity reverse cause and effect? Philosophical Transactions of the Royal Society B / PMC., Heini AF & Weinsier RL (1997). Divergent trends in obesity and fat intake patterns: the American paradox. American Journal of Medicine. +3 more
Cold plunges and ice baths significantly boost metabolism via brown fat activation and aid long-term fat loss.
Sources: Ouellet et al., J Clin Invest 2012 (PubMed 22269323), van der Lans et al., J Clin Invest 2013 (PubMed 23867626), Scott & Fuller, Int J Mol Sci 2023 (PubMed 38203217) +4 more
Detox diets and juice cleanses actually remove toxins from the body.
Sources: University of Rochester Medical Center — Do Juice Cleanses Detox the Body?, PubMed — Detox diets for toxin elimination and weight management: a critical review of the evidence (2015), Harvard Health — Harvard Health Ad Watch: What's being cleansed in a detox cleanse? +1 more
Eating eggs significantly raises LDL cholesterol and heart-disease risk.
Sources: Drouin-Chartier et al., BMJ 2020 (PMC7190072) — meta-analysis of 28 prospective cohort studies, 1,720,108 participants, 139,195 CVD events, Kazemi et al., Eur J Nutr 2021 (PMC8137614) — dose-response meta-analysis of 39 prospective cohort studies, ~2M participants, Zhu et al., Nutrients 2020 (PMC7400894) — meta-analysis of 17 RCTs in healthy subjects
Eating the same calories late at night leads to significantly more weight gain and fat storage than earlier in the day.
Sources: Gu et al. (2020) J Clin Endocrinol Metab — 'Metabolic Effects of Late Dinner in Healthy Volunteers' (PMC/NIH), McHill et al. (2017) Am J Clin Nutr — 'Later circadian timing of food intake is associated with increased body fat' (PMC/NIH), Harvard Gazette (2022) — reporting Vujovic et al. 2022 Cell Metabolism isocaloric crossover RCT +1 more
GLP-1 drugs like Ozempic cause unavoidable major muscle loss and "Ozempic face" even with exercise and high protein intake
Sources: Tinsley GM, Nadolsky S. SAGE Open Medical Case Reports 2025. Three patients performed resistance exercise 3–5 d/wk + high protein (1.6–2.3 g/kg FFM/d) during GLP-1 agonist treatment. DXA showed lean soft tissue preserved or net-gained in 2 of 3 cases; Case 1 lost only 8.7% of weight as lean mass vs. 26–40% expected without exercise., Codella R, Senesi P, Luzi L. Frontiers in Clinical Diabetes and Healthcare 2025. Narrative review of GLP-1 agonist pharmacotherapy and exercise interventions., Apovian C, Yerevanian A, Dushay J. Mass General Advances in Motion 2025. Clinical guidance on preserving lean body mass during GLP-1 receptor agonist therapy. +2 more
High-protein diets above 1.6 g/kg body weight damage kidneys in healthy people.
Sources: Devries MC et al. (2018) Changes in Kidney Function Do Not Differ between Healthy Adults Consuming Higher- Compared with Lower- or Normal-Protein Diets: A Systematic Review and Meta-Analysis. Journal of Nutrition, 148(11):1760-1775. DOI:10.1093/jn/nxy197, Van Elswyk ME et al. (2018) A Systematic Review of Renal Health in Healthy Individuals Associated with Protein Intake above the US Recommended Daily Allowance in Randomized Controlled Trials and Observational Studies. Advances in Nutrition, 9(4):404-418. DOI:10.1093/advances/nmy026, Cheng Y et al. (2024) Association between dietary protein intake and risk of chronic kidney disease: a systematic review and meta-analysis. Frontiers in Nutrition, 11:1408424. DOI:10.3389/fnut.2024.1408424
Intermittent fasting is scientifically proven superior to other diets for fat loss and longevity.
Sources: Evaluation of the effectiveness of intermittent fasting versus caloric restriction in weight loss and improving cardiometabolic health: A systematic review and meta-analysis (PMC, 2025), Effects of Intermittent Fasting in Human Compared to a Non-intervention Diet and Caloric Restriction: A Meta-Analysis of Randomized Controlled Trials (PMC, 2022), Review Article: Health Benefits of Intermittent Fasting (PMC, 2024) +1 more
Lectins in nightshades like tomatoes and potatoes and grains cause widespread inflammation and leaky gut.
Sources: Banner Health (major US health system), Harvard T.H. Chan School of Public Health — The Nutrition Source, MD Anderson Cancer Center +1 more
Multivitamins and most supplements provide meaningful health benefits for the general healthy population.
Sources: U.S. Preventive Services Task Force (USPSTF) — 2022 Recommendation Statement on Vitamin Supplementation, NCBI Bookshelf — USPSTF Systematic Evidence Review 2022 (Lam et al., commissioned by Agency for Healthcare Research and Quality), NIH Office of Dietary Supplements — Multivitamin/Mineral Supplements: Health Professional Fact Sheet +1 more
Natural sugars in fruit are healthy while added sugars are poison (in equivalent amounts).
Sources: Harvard Health Publishing, Harvard Medical School, The Conversation (peer-reviewed academic commentary), American Heart Association +2 more
Seed oils (canola, sunflower, soybean, corn oil) are toxic and a primary cause of modern chronic inflammation and disease.
Sources: Harvard T.H. Chan School of Public Health (2024), Stanford Medicine — Christopher Gardner, PhD, director of nutrition studies at Stanford Prevention Research Center (2025), PMC 11600290 — Perspective on the health effects of unsaturated fatty acids and commonly consumed plant oils high in unsaturated fat (2024) +2 more
The body can only absorb 20-30 g of protein per meal; the rest is wasted.
Sources: Schoenfeld BJ, Aragon AA. How much protein can the body use in a single meal for muscle-building? Implications for daily protein distribution. J Int Soc Sports Nutr. 2018;15(1):10. PMC5828430., Trommelen J, van Lieshout GAA, Nyakayiru J, Holwerda AM, Smeets JSJ, Hendriks FK, van Kranenburg JMX, Zorenc AH, Senden JM, Goessens JPB, Gijsen AP, van Loon LJC. The anabolic response to protein ingestion during recovery from exercise has no upper limit in magnitude and duration in vivo in humans. Cell Rep Med. 2023;4(12):101324. PMC10772463., Deutz NE, Wolfe RR. Is there a maximal anabolic response to protein intake with a meal? Clin Nutr. 2013;32(2):309-313. PMC3595342.
The carnivore diet is superior for health, longevity, and reversing chronic disease compared to plant-inclusive diets.
Sources: Nutrients (MDPI) / PMC — Carnivore Diet: A Scoping Review of the Current Evidence, Potential Benefits and Risks (2025), Blue Zones — Blue Zones Diet: Food Secrets of the World's Longest-Lived People (reporting on Adventist Health Study findings), World Health Organization — Healthy Diet Fact Sheet +1 more
You must eat animal protein to meet daily protein needs effectively.
Sources: Journal of the Academy of Nutrition and Dietetics, Melina et al. 2016 (PMID 27886704), Nutrients 2019: Dietary Protein and Amino Acids in Vegetarian Diets — A Review (PMC6893534), Cleveland Clinic Health Essentials: Complete Proteins
You need to drink at least 8 glasses of water daily for optimal health regardless of thirst.
Sources: PubMed — Valtin H. (2002) 'Drink at least eight glasses of water a day.' Really? Am J Physiol Regul Integr Comp Physiol 283(5):R993–R1004, National Academies of Sciences, Engineering, and Medicine — Dietary Reference Intakes for Water, Salt, and Potassium press release, Tufts Medicine — Medical Myths: Drink 8 Glasses of Water Each Day (2022)