After menopause, the body starts losing muscle and bone at a pace many women don’t expect: up to 1% of bone mass a year. Science just confirmed that a cheap, heavily studied sports supplement, creatine, can help slow part of that loss.
An international team reviewed 7 randomized clinical trials covering 608 postmenopausal women, published in the Journal of the International Society of Sports Nutrition. Creatine, combined with resistance training and at doses of at least 5 grams a day, produced small but real gains in lean mass and strength.
Specifically: lean mass (muscle, not fat) increased by an average of 0.37 kilograms more than placebo, and leg press strength rose 7.5 kilograms more in the creatine group. These aren’t spectacular numbers, but they’re consistent across studies and statistically significant.
The key is combining sufficient dose with training. Benefits only showed up clearly when creatine was paired with a resistance training program. Trials using low doses (3 grams a day or less) without resistance training showed no measurable effect at all. The subgroup analysis confirms it: with training, lean mass gain was +0.32 kg versus placebo; without training, the difference was -0.14 kg, essentially nothing.
Bone density showed no clear change. Despite the hypothesis that creatine could also help bone (through greater muscle pull on the skeleton), the three trials that measured bone mineral density found no consistent difference versus placebo. The evidence here remains inconclusive.
The authors searched MEDLINE (via PubMed), Embase, Scopus, Web of Science, SPORTDiscus and Cochrane CENTRAL for randomized, placebo controlled trials, applying strict quality criteria (Cochrane RoB 2 assessment) before including each study.
Safety wasn’t an issue. Adverse events recorded were mild and similar between the creatine and placebo groups, and kidney function markers showed no changes, a point that often worries people considering taking this supplement long term.
This is a well controlled relationship, but still based on a small number of studies. Unlike other topics covered by this kind of analysis, these are genuinely randomized, placebo controlled trials, the design that best isolates cause and effect. But it’s only 7 studies with 608 women total, a modest sample compared to other meta-analyses, meaning the statistical certainty is lower and a single new study could shift the result somewhat.
The practical takeaway for a postmenopausal woman already doing resistance training is that adding creatine (at least 5 grams daily) looks like a safe, reasonably well supported way to get a bit more out of that effort. Taking it without training, according to this evidence, doesn’t add much.
Source: Naddafha S, Antonio J, Kreider RB, Stout JR. “Creatine monohydrate for lean mass, strength, and bone density in postmenopausal women: a systematic review and meta-analysis.” Journal of the International Society of Sports Nutrition, 2026. DOI: 10.1080/15502783.2026.2668435.
