What are the effects of low magnesium during pregnancy? This article is from a talk by the late Dr. Mildred Seelig, who was perhaps the world’s most preeminent researcher on Magnesium. She makes the case that low magnesium during pregnancy is associated with low birth weight, gestational diabetes, stillbirth, and eclampsia. Not only that, but babies born with these problems have more heart problems later in life. [...]