What is magnesium glycinate good for? Benefits and risks, explained

USA Today · , USA TODAY · 2026-11-04 10:00 UTC

Magnesium glycinate is a supplement available in pill, powder or liquid form. It's become a staple for some people's bedtime routines. Here's why.

If you’ve ever searched for a better night’s sleep or something mild to help you unwind after a rough day, you’ve probably heard of magnesium glycinate.

It’s become a familiar presence in bedtime routines, supplement aisles and social media posts that promise everything from calmer nerves to fewer muscle cramps.

But experts say supplementing it won't automatically improve your health − “though it can be useful for people who aren't getting enough magnesium from food or who have a confirmed or suspected deficiency,” says Jen Messer, a researcher, registered dietitian and former president of the New Hampshire Academy of Nutrition and Dietetics.

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