More People Are Ditching Melatonin for Magnesium. But How Does It Help With Sleep?

You Should Know: Melatonin was the go-to sleep aid for a long time, but more people are now reaching for magnesium instead. Magnesium’s surge in popularity is potentially connected to recent research linking melatonin supplements and heart risks. Plus, melatonin can make some people feel groggy and cause vivid dreams or nightmares. Both supplements can help with sleep, but do they affect your body in the same way?

Going Deeper: The body needs both magnesium and melatonin to function properly. Melatonin is a hormone that helps to regulate the sleep-wake cycle and induce sleep. It’s produced in the pineal gland, increasing production when it’s dark and decreasing production when it’s light. Magnesium is a mineral that plays a role in hundreds of bodily functions. 

Takeaway: Magnesium may improve sleep by balancing the effects of excitatory and relaxing neurotransmitters, including GABA, serotonin, and cortisol. It can also calm the nervous system and treat restless leg syndrome. 

Bottom Line: Experts say magnesium is likely safe for healthy people, but not every type is good for sleep — so choose magnesium glycinate or L-threonate to catch some Z’s. And remember that taking sleep aids too often could mask more serious conditions, such as chronic insomnia and sleep apnea.