Magnesium chloride is a supplemental form of magnesium. Learn about the uses, benefits, side effects, and risks.

If magnesium is taken above the tolerable upper intake level of 350 milligrams, you could end up with nausea, vomiting, and diarrhea, Cohen said. “Large doses could cause an irregular heartbeat, low ...

Before you grab a bottle of magnesium, learn which form of this supplement is most likely to give you quality rest.