# Magnesium Glycinate Vs. Citrate: Sleep Experts Reveal Which You Should Take
Magnesium supplements come in multiple forms, and the type matters for sleep quality. Glycinate and citrate represent two popular options with different mechanisms and effects on the body.
Magnesium glycinate binds magnesium to the amino acid glycine. This combination works synergistically for sleep. Glycine itself promotes relaxation by lowering core body temperature and activating inhibitory neurotransmitters in the brain. The glycine component crosses the blood-brain barrier easily, delivering calming effects alongside magnesium's muscle-relaxing properties. Sleep specialists recommend glycinate for people seeking gentle, sustained support without digestive side effects. The body absorbs it efficiently, and it rarely causes laxative effects.
Magnesium citrate pairs magnesium with citric acid. This form has stronger bioavailability and moves through the digestive system more quickly. It works well for people with constipation or irregular bowel movements, as it naturally promotes gut motility. However, citrate can have a mild laxative effect, making it less ideal for those with sensitive digestion or people taking it specifically for sleep support late in the evening.
The choice depends on your primary goals. If sleep quality ranks as your main concern and you have a sensitive stomach, glycinate edges ahead. The amino acid glycine adds its own sleep-promoting benefits without digestive disruption. If you struggle with constipation alongside poor sleep, citrate addresses both problems.
Dosing also differs between forms. Magnesium glycinate typically ranges from 200-400mg daily, taken in the evening. Citrate often requires lower doses, around 150-300mg, due to its laxative properties.
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