Most replayed moment: Do you really need vitamin supplements? | David Seres

Vitamin supplements, often marketed as essential for health, lack the rigorous scientific testing required for medical products due to the 1995 Dietary Supplement Health and Education Act. For the general healthy population, these supplements provide no proven benefit and may carry unidentified risks. While historical vitamin discoveries addressed specific deficiencies like rickets or scurvy, modern usage often stems from a desire for control rather than medical necessity. Randomized trials consistently fail to show health improvements from routine supplementation, and high doses of substances like vitamin D can even be toxic. Instead of relying on pills, prioritizing a diet of fresh, minimally processed foods remains the most effective strategy for maintaining long-term health. Consumers should avoid unnecessary supplementation unless a specific deficiency is identified by a medical professional.