Now, a new study has taken aim at one particularly popular myth: that multivitamins prevent heart attacks, strokes and other causes of cardiovascular death. The paper by researchers at the University of Alabama at Birmingham looked at data on 2,000 people over 12 years and found supplements had no impact at all on heart health.
If anything, it could be detrimental, said lead author Joonseok Kim, MD, in a withering attack on the vitamin industry. Those who took multivitamins seemed to feel they were doing something to improve their health, while continuing to smoke and eat junk food, he warns.
Kim's study is an analysis of 18 published studies that have been published by the American Heart Association journal Circulation.