The Medical Advisor

Medically reviewed and updated for 2026 — By the OneDayMD Editorial Team Quick Answer The anti-aging supplements with the strongest human evidence are vitamin D3 (with K2 and magnesium), omega-3 fatty acids, creatine, glycine, and collagen peptides — each backed by large randomized trials tied to biological aging, mortality, or a specific hallmark of aging. Urolithin A, NAC/GlyNAC, and spermidine have promising but smaller human trial support. NMN, resveratrol, and CoQ10 are well-studied for safety and biomarkers but have not yet shown they extend human lifespan. A 2025 NIH-led study also overturned the idea that low taurine drives aging in humans — see Section 4. No supplement replaces diet, exercise, sleep, and a doctor's guidance. Can supplements reverse your age? Can you supplement your way out of aging? We dug into more than 1,000 research studies — including several major 2025 and 2026 trials — to find out. Generic AI chatbot answers about longevity supp...

In recent years, carbohydrates have become the ultimate dietary scapegoat, blamed for everything from obesity to chronic disease. The rise of various low-carb diet trends has painted carbohydrates as the enemy of gut health and weight management, leading many to severely restrict or eliminate this essential macronutrient from their diets. This villainization has been particularly prominent in both weight loss and gut health circles, where carbohydrates are often unfairly accused of being the primary culprit behind not only the obesity epidemic but also digestive disorders. A common misconception in gut health communities is that carbohydrates primarily "feed bad bacteria," leading to dysbiosis and digestive issues. However, this oversimplified view ignores the complex role carbohydrates play in human health, particularly in maintaining a healthy gut ecosystem. Scientific evidence consistently demonstrates their crucial role in maintaining gut health and overall digestive func...