Can you take Magnesium and Melatonin together?
Magnesium promotes muscle relaxation and GABA activity while melatonin signals the body clock. One of the most evidence-based sleep stacks.
Severity
Info
Evidence
moderate
Timing
Both 30–60 minutes before bed.
How it works
Magnesium enhances GABAergic inhibition and relaxes smooth muscle while melatonin acts on MT1/MT2 circadian receptors.
Magnesium glycinate or threonate are preferred for sleep due to better CNS availability. Low-dose melatonin (0.5–1 mg) is likely sufficient — higher doses (3–10 mg) often cause next-day grogginess without better sleep.
What to do
Take both 30–60 minutes before bed. Keep melatonin at 0.5–1 mg. Choose magnesium glycinate or threonate over oxide for sleep purposes.
Frequently asked
Should I separate Magnesium and Melatonin?
This is an informational interaction. Magnesium and Melatonin are generally fine to take together. Complementary sleep support through different systems
Why do Magnesium and Melatonin interact?
Magnesium enhances GABAergic inhibition and relaxes smooth muscle while melatonin acts on MT1/MT2 circadian receptors.
How strong is the evidence for this interaction?
The evidence is moderate. Some studies support this interaction, but more research may be needed.
About these supplements
Other Magnesium interactions
Other Melatonin interactions
Related reading
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This information is for educational purposes only. It is not medical advice and does not diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional.