Enough is enough: Stop wasting money on vitamin and mineral supplements.

In a recent editorial in Annals of Internal Medicine, Dr. Emilio Guallar and colleagues review three new supplementation studies with negative or equivocal outcomes, and conclude that “the case is closed – supplementing the diets of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful. These vitamins should not be used for chronic disease prevention. Enough is enough.”