Best time to take Magnesium Citrate

Written to our editorial standards · reviewed against published research· Updated 2 Jun 2026
Evening, with water

Take magnesium citrate in the evening with plenty of water; it doubles as a gentle laxative.

Citrate draws water into the gut, which is why it relieves occasional constipation and why timing matters: an evening dose works overnight, and water helps it move things along comfortably.

When
Take in the evening
With food?
With a full glass of water
Typical dose
400 mg elemental
How to take it

Take it in the evening with a full glass of water. Start with a modest dose and increase only if needed, since too much causes loose stools.

Watch out

For pure relaxation or sleep, glycinate is gentler on the gut than citrate.

Full guide
Magnesium Citrate: benefits, dose & evidence
Read the ingredient guide →

Common questions

When is the best time to take Magnesium Citrate?
Take magnesium citrate in the evening with plenty of water; it doubles as a gentle laxative. Take it in the evening with a full glass of water. Start with a modest dose and increase only if needed, since too much causes loose stools.
Should I take Magnesium Citrate with or without food?
With a full glass of water. Citrate draws water into the gut, which is why it relieves occasional constipation and why timing matters: an evening dose works overnight, and water helps it move things along comfortably.
Anything to watch out for with Magnesium Citrate timing?
For pure relaxation or sleep, glycinate is gentler on the gut than citrate.

Explore further

Magnesium Citrate interactions

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Educational use only, not medical advice. The right timing and dose depend on your health, your other supplements, and any medications. Always consult a qualified clinician, especially if you take prescription drugs or are pregnant or nursing.