Study warns too much vitamin D may actually *decrease* bone density

June 21, 2026

Research: Multivitamins don’t prevent heart attacks, stroke, cardiovascular death

April 5, 2022

Study: Multivitamins, other common supplements have no health benefits

April 4, 2022

Multivitamins don’t reduce heart disease risk, even in people who have poor diets, study finds

June 21, 2026

Taking vitamin D during pregnancy could reduce autism risk, studies find

February 9, 2022