While true magnesium deficiency is rare—only 2% of healthy adults have it, per the Cleveland Clinic—as many as half of Americans aren’t getting enough of the mineral. That’s why, even if you are ...

Kristie Reed, PharmD, oversees emergency, general medical, surgical, psychiatric care, and oncology medication as the pharmacy director of a community hospital. Dr. Reed specializes in IV medications.

There are a host of reasons that people may show signs of low magnesium, from certain health conditions to simply not eating enough vegetables. While the drugstore aisle holds many different types of ...