Nutrient Know-How Magnesium

Every cell in your body uses magnesium. Learn what this mineral can do for your health—and how to get enough of it.

- by SHARON LIAO

It may help you sleep better.

Studies suggest that people who have higher levels of magnesium may fall asleep faster and snooze more soundly. The mineral relaxes muscles, so it may help you unwind at bedtime, says Diane Javelli, RD, a clinical dietitian at UW Medical Center in Seattle. It also regulates brain chemicals called neurotransmitters, including a sleep-inducing one called GABA, explains Vanessa King, RDN, a spokesperson for the Academy of Nutrition and Dietetics.

It can protect you from a variety of health issues.