Nutrition · Foundations
Micronutrients & Supplements
Vitamins and minerals: fat- vs water-soluble, the common deficiencies (vitamin D, B12, iron, iodine), what the evidence says about popular supplements (fish oil, creatine, multivitamins), and how to choose safely.
Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: Macronutrients; reading a nutrition label. Next: Building a longevity plan. Sources: NIH Office of Dietary Supplements fact sheets; VITAL trial (NEJM 2019); Examine.com; USPSTF on vitamin supplementation (2022). Educational only.Next: 1. The basics