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Limited evidencePhysical performance

Creatine Magnesium Chelate

Creatine bound to magnesium, sold as an upgraded form. Two small trials show it works; none show it beats plain creatine monohydrate, which costs far less.

Where to buy

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What the science says

  • Improves performance versus placebo Limited evidence

    A randomised trial found magnesium-creatine chelate with a low-dose regimen improved exercise performance, and a later randomised trial in elite soccer players reported better repeated-sprint ability after long-term use. Both had small samples.

  • No demonstrated advantage over monohydrate Moderate evidence

    A systematic review of alternative creatine forms concluded that none has been shown to outperform creatine monohydrate for performance or body composition, which remains the reference form.

Dosage & safety

Studied doseTrials used roughly 2.5–5 g/day of magnesium-creatine chelate, without a conventional loading phase.
SafetySame profile as other creatine forms: water retention, occasional GI upset, no established harm to healthy kidneys. People with kidney disease should not supplement creatine without medical supervision, and the magnesium content can add a laxative effect.

How to take it

TimingTiming does not matter; daily consistency is what saturates muscle creatine.
With food?Take it with food to limit the magnesium-related loose stools.
Worth knowingPlain creatine monohydrate at 3–5 g is cheaper and far better studied; no chelate has beaten it head to head.

Interactions

With medications

  • levothyroxine

    The magnesium content binds it and reduces absorption. separate by at least 4 hours

  • tetracycline and quinolone antibiotics

    Magnesium chelates the antibiotic and cuts how much you absorb. separate by at least 2 hours before or 4 hours after the antibiotic

With other supplements

  • other magnesium supplements

    Additive laxative effect and easy over-dosing of magnesium. count the magnesium from both and keep the total reasonable

Well-established interactions only — this is not a complete list. Always tell your doctor and pharmacist what you take.

Frequently asked questions

Is creatine magnesium chelate better than creatine monohydrate?

No, a systematic review found no alternative creatine form, including creatine magnesium chelate, outperforms creatine monohydrate. Plain monohydrate at 3–5 g is cheaper and far better studied.

Does creatine magnesium chelate work?

Creatine magnesium chelate has limited evidence: two small randomised trials, one in elite soccer players, found it improved performance compared with placebo. None show it beats plain creatine monohydrate.

How much creatine magnesium chelate should I take?

Trials used roughly 2.5–5 g/day of creatine magnesium chelate without a loading phase; daily consistency matters more than timing. Take it with food to limit loose stools from the magnesium.

Can I take creatine magnesium chelate with thyroid medication?

The magnesium in creatine magnesium chelate reduces levothyroxine absorption, so separate them by at least 4 hours. With tetracycline or quinolone antibiotics, separate by at least 2 hours before or 4 hours after.

Scientific references

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