The Council for Responsible Nutrition (CRN) and the US Pharmacopeia (USP) are expressing “grave concerns” over the accuracy of recent research claiming prenatal vitamins don’t contain enough of the nutrients needed for healthy pregnancy, with some even containing high levels of toxic metals.The study, published in the American Journal of Clinical Nutrition, checked choline and iodine levels in nonprescription and prescription prenatal vitamins bought online and in local shops.
