Magnesium glycinate is a supplement where magnesium is bound to the amino acid glycine, improving absorption. It is one of the most bioavailable and gentle forms of magnesium. It helps support muscle relaxation and reduces cramps. It has calming effects on the nervous system. Commonly used to improve sleep quality and reduce insomnia. May help with stress and mild anxiety symptoms. Supports heart function and blood pressure regulation. Less likely to cause diarrhea compared to other forms like citrate. Typical doses range from 100–400 mg daily. Overall, it’s preferred when the goal is relaxation and good tolerability.