Low Maternal Dietary Intakes of Iron, Magnesium, and Niacin Are Associated with Spina Bifida in the Offspring
This is one of the reasons I tell patients that the pharmaceutical prenatals are general some of the poorest quality and most expensive vitamins I’ve ever seen. Some of them are so blatantly poor as to only contain folic acid, iron and calcium. Most are nothing more than a basic support. Few contain biotin, magnesium and niacin. I don’t think there are ANY that contain all three. They are based on a pharmaceutical model–not a model of healthy pregnancy. They should all be tossed in the garbage where they belong (care to know how I really feel?).
Nutrition.org — Abstracts: Groenen et al. 134 (6): 1516 –