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Creatine Monohydrate

Written and medically reviewed by , physiatrist · Last reviewed · How we grade
In one paragraph

Creatine Monohydrate, graded Strong-evidence on Magellan — across meta-analyses and randomized trials, creatine monohydrate combined with resistance training modestly increases lean/muscle mass (about +1.4 kg in older-adult trials) and upper- and lower-body strength, including in older adults. Bone effects are otherwise inconsistent, with several long-term trials showing no benefit, and gains are generally smaller when creatine is taken without exercise.

Source: Bone 2022, PMID 35688360 ↗ · Nutraceuticals & Cellular Energizers · How Magellan grades evidence · Study write-up · evidence confidence: high

Nutraceuticals & Cellular Energizers23 PubMed citations
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What it is

Creatine is a nitrogen-containing compound that the body synthesizes from the amino acids arginine, glycine, and methionine, and also obtains from meat and fish; roughly 95% is stored in skeletal muscle. In muscle it is phosphorylated to phosphocreatine, which rapidly regenerates adenosine triphosphate (ATP) during short bursts of high-intensity effort. Creatine monohydrate is the most extensively studied and commonly used oral form, and supplementation raises muscle and, to a lesser extent, brain creatine and phosphocreatine stores.

Its role in longevity

Across meta-analyses and randomized trials, creatine monohydrate combined with resistance training modestly increases lean/muscle mass (about +1.4 kg in older-adult trials) and upper- and lower-body strength, including in older adults. Memory performance improves modestly on average, with the largest effects in adults 66-76 years old; a 2026 meta-analysis in postmenopausal women found meaningful strength gains only when at least 5 g/day was paired with training, and no bone-density benefit. Bone effects are otherwise inconsistent, with several long-term trials showing no benefit, and gains are generally smaller when creatine is taken without exercise. At recommended doses (3-5 g/day) it is well tolerated in healthy people, with an extensive safety record. This evidence describes the creatine compound and its phosphocreatine/ATP mechanism itself, not this specific commercial product.

The research

Peer-reviewed studies on the active compound — citations link to PubMed.

“creatine monohydrate has favorable effects on indices of aging muscle and bone”
Bone 2022 · PMID 35688360
“muscle strength changes were more visible in the resistance training plus creatine group”
Front Public Health 2023 · PMID 37206869
“increases in regional bone mineral density of the femur; may improve skeletal muscle health”
J Geriatr Phys Ther 2020 · PMID 30762623
“Cr + RT increased total body mass (P = 0.004) and fat-free mass (P < 0.0001) with no effect on fat mass as compared with RT alone.”
Med Sci Sports Exerc 2014 · PMID 24576864
“creatine supplementation with resistance training enhances upper- and lower-body muscle strength in adults aged < 50, with greater benefits likely to be seen in males than females.”
Nutrients 2024 · PMID 39519498
“the results suggest that creatine supplementation combined with RT promotes a small increase in the direct measures of skeletal muscle hypertrophy in both the upper and lower body.”
Nutrients 2023 · PMID 37432300

Research describes the active mechanism and is not a claim about this specific product.

Educational information, not medical advice. This product is not intended to diagnose, treat, cure, or prevent any disease. Talk to your physician before starting any supplement or device, especially if pregnant, nursing, or taking medication.

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FAQ

Does Creatine Monohydrate have scientific evidence?

Yes — its active compound is linked to 23 peer-reviewed studies, summarized and cited above.

Where can I buy Creatine Monohydrate?

You can buy it on Amazon via the link above; Magellan earns a small affiliate commission at no extra cost to you, which does not affect the evidence grade.

Is Creatine Monohydrate safe?

Dietary supplements and devices are generally well tolerated but are not a substitute for medical care. Talk to your physician before starting, especially if you take medication or have a health condition.