Magnesium glycinate is a chelated form of magnesium bound to the amino acid glycine and is often chosen for better gastrointestinal tolerability. Magnesium supports core functions such as neuromuscular signaling, muscle relaxation, energy metabolism, and regulation of the stress response. For that reason, glycinate is commonly used as supportive nutrition for sleep quality, muscle cramps, muscle tension, and stress-related discomfort. It is not a drug, and results vary based on individual needs, diet quality, sleep habits, and baseline magnesium status. Another key point is dosing: the label may show a large number in milligrams, but the “elemental magnesium” amount is what matters for planning intake. People with kidney disease, those on multiple medications, or pregnant/breastfeeding individuals should use supplements with clinical guidance to ensure safety.