Magnesium Glycinate for Sleep: What 5 Studies Show and How Much
Magnesium glycinate may help sleep a little. In the only trial of this form, 155 adults with poor sleep took 250 mg of magnesium as bisglycinate before bed for 4 weeks, and insomnia scores fell slightly more than with placebo. NIH says research on magnesium for insomnia is still very limited. Stay under 350 mg a day from supplements, and try CBT-I first for chronic insomnia.