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Ingredient

Magnesium Citrate

Promising

A common, well-absorbed form of elemental magnesium frequently used for daily intake.

How it works

Magnesium is an essential cofactor in hundreds of enzymatic reactions; the citrate form is well absorbed and may have a mild laxative effect at higher doses.

Evidence

Citrate has good bioavailability in pharmacokinetic studies and is widely used in trials of total magnesium intake.

Studies

  • Abbasi et al., J Res Med Sci, 2012

    Magnesium supplementation improved subjective sleep at ~500 mg/day in older adults.

    PubMed 23853635

Top products

Sorted by effective monthly cost

Now Foods Magnesium Citrate 200 mg

Now Foods

Per serving
200 mg
Studied midpoint
300 mg · 2/day

Effective cost

$0.30/day·$9/month

Nature Made Magnesium Citrate 250 mg

Nature Made

Per serving
250 mg
Studied midpoint
300 mg · 2/day

Effective cost

$0.42/day·$13/month

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