Many vitamins can turn dangerous in large amounts.
Credit: Quentin Bacon

A day's worth of vitamin-boosted foods and snacks, plus just a single supplement, can add up to excessive—and potentially harmful—doses of key nutrients over time.


Quentin Bacon1 women's multivitamin+
1 bowl fortified breakfast cereal +
1 sandwich on fortified bread+
1 (8-ounce) vitamin-fortified water+
1 antioxidant smoothie with vitamin boost+
1 fortified snack bar=
300% DV vitamin A
237% DV vitamin E
214% DV folic acid
(just to name a few)