Evidence explainerCreatine monohydrate
Creatine for Women Over 50, in Menopause, or on a GLP-1: What the Trials Support
In postmenopausal women, creatine plus strength training adds a little lean mass and leg strength. It has not been tested alongside GLP-1 drugs, but it is one of the tools reviewers list for protecting muscle during rapid weight loss.
Key takeaways
- A 2026 meta-analysis of 7 placebo-controlled trials in postmenopausal women (608 randomized, mean age about 62) found creatine added 0.37 kg of lean mass and 7.5 kg to leg-press strength [1].
- The benefit showed up when at least 5 g a day was combined with resistance training; trials of 3 g a day or less without training showed no measurable effect [1].
- Bone density did not change in two 2-year trials in postmenopausal women, so creatine is not a bone treatment [2][1].
- No trial has tested creatine in people taking semaglutide or tirzepatide; reviews list it as an adjunct to protein and resistance training for preserving lean mass, supported mainly by indirect evidence [3][4].
- Creatine can nudge up serum creatinine on blood tests without a change in kidney filtration, so tell whoever orders your labs [5].
Safety at a glance
From our Creatine monohydrate monograph. Published interactions and cautions only, each with its source.
Interactions
- Caffeine. In 9 men, caffeine taken during a 6-day creatine load left the 4–6% phosphocreatine rise intact but wiped out the 10–23% torque gain seen with creatine alone.[17]
Who should be careful
- Medicines. NIH ODS lists no drug interactions for creatine. That means none are published in that source, not that creatine is safe with every medicine.[1]
- Kidney. A 2025 meta-analysis found a small rise in serum creatinine (significant at follow-ups under 1 week and over 12 weeks, not at 1–12 weeks) with no significant change in glomerular filtration rate. Because creatinine is a routine kidney test, this can complicate lab results. Trials mostly enrolled healthy people, so anyone with kidney disease or reduced kidney function should discuss creatine with their clinician first.[12]
- Pregnancy and breastfeeding. Insufficient human safety data in our sources.[1]
- Liver. No liver-specific human safety data in our sources.[1]
The evidence, graded
Pulled from our monograph evidence tables. Grades follow our evidence-grading policy.
- Grade BImprovedLean mass and strength in postmenopausal womenLean mass +0.37 kg (5 trials, n=338) and leg-press 1RM +7.5 kg (3 trials, n=111) vs placebo. Bone density unchanged. Adverse events similar to placebo; renal indices unchanged.
- No effectNo effectBone mineral densityNo effect on femoral neck, total hip or lumbar spine bone mineral density vs placebo. Some femoral-neck geometry measures (section modulus, buckling ratio) were better maintained.
- Grade BImprovedMemoryMemory improved vs placebo (SMD 0.31; moderate certainty). Attention time and processing speed also improved (low certainty). No significant effect on overall cognitive function or executive function.
Creatine after menopause: small, real gains with lifting
Menopause speeds up the loss of muscle and strength [1]. The best summary for this group is a 2026 meta-analysis of 7 randomized, placebo-controlled trials lasting 12 to 104 weeks [1]. Lean mass rose by 0.37 kg more than placebo across 5 trials, and leg-press one-rep max by 7.5 kg across 3 trials [1].
The pattern matters more than the averages: benefits appeared when women took at least 5 g a day and did resistance training, while low-dose trials without training found nothing [1]. Adverse events were mild and similar to placebo, and kidney measures were unchanged [1]. The authors flagged that risk of bias was mostly 'some concerns' and the review was not prospectively registered [1].
Bone: no change in density
Creatine is sometimes marketed for bone after menopause. In a 2-year trial of 237 postmenopausal women in an exercise program, creatine did not change bone mineral density at the hip or spine compared with placebo, though some hip-geometry measures held up better [2]. The pooled analysis also found bone density unchanged [1]. For bone, the established levers are covered in vitamin D and fractures and calcium citrate vs carbonate.
Perimenopause, mood and memory
Interest in creatine for perimenopause brain fog is high, but there are no dedicated perimenopause trials. Across 16 trials in mixed adult groups, creatine improved memory modestly (moderate certainty), with no effect on overall cognition or executive function [6]. Consider it an open question, not a fix for menopausal symptoms; hormone therapy options and costs are compared in our menopause HRT online guide.
Creatine while on Ozempic, Wegovy or Zepbound
GLP-1 drugs mostly remove fat, but they also produce smaller, consistent drops in lean mass, and lean mass on a scan is not the same as muscle strength [4]. A 2026 review concluded that the best-supported approach is adequate protein, structured resistance exercise and managing digestive side effects, with creatine, HMB and essential amino acids as adjunctive options backed mainly by indirect evidence [4].
A 2025 narrative review on supplements during GLP-1 treatment likewise notes that creatine adds strength benefits when combined with resistance training, on top of protein of 1.2 to 2.0 g per kg per day [3]. No randomized trial has yet tested creatine in people on a GLP-1, so the case rests on what creatine does in other groups [3][4]. If you are starting a GLP-1, see the GLP-1 telehealth hub and how much protein to build muscle.
How women in the trials took it
The positive postmenopausal trials used at least 5 g a day with resistance training [1]. A loading phase is optional; see the loading-phase explainer. Hair-loss worries are addressed in does creatine cause hair loss.
Kidney safety: a 2025 meta-analysis found a small rise in serum creatinine with creatine but no significant change in kidney filtration rate, consistent with creatine turnover rather than kidney damage [5]. People with existing kidney disease should still check with their clinician first [5]. The partner product below lists its creatine per scoop; check that your daily total reaches the dose used in the trials.
Quick answers
Is creatine good for women over 50?
With resistance training, yes, modestly: postmenopausal trials found small gains in lean mass and leg strength at 5 g a day or more [1].
How much creatine should a menopausal woman take?
Trials that showed benefits used at least 5 g a day alongside strength training; 3 g a day or less without training showed no effect [1].
Can I take creatine while on Ozempic or Zepbound?
There is no known interaction, but no trial has tested the combination. Reviews list creatine as an optional add-on to protein and resistance training for preserving lean mass [3][4]. Tell your prescriber.
Does creatine help menopause belly fat or weight loss?
No trial shows creatine reduces fat in menopause. Its effect is on lean mass and strength [1].
Will creatine affect my kidney blood test?
It can raise serum creatinine slightly without lowering kidney filtration, so mention it when you have labs drawn [5].
Keep reading
Full monographs
Related articles
- Creatine After 50: What It Does for Muscle, Memory and Bone (and What It Doesn’t)
- Creatine Gummies vs Powder: Two Lab Rounds Found Gummies With Little or No Creatine
- Creatine Loading Phase: Do You Need It, and Why Did the Scale Just Jump?
- Does Creatine Cause Hair Loss? The One Study Behind the Fear, and the Trial That Finally Checked Hair
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Where to buy Creatine monohydrate
Products from brands we partner with that contain Creatine monohydrate. Listing a product is not a claim that it works; check the amount per serving against the doses studied above, and the label for other ingredients.
- SupersmartPaid link3-Creatine1 scoop (3.5 g): 3 g creatine, mostly from creatine monohydrate (3,360 mg) with small amounts of creatine phosphate and pyruvate; 70 servingsShop at Supersmart (opens in new tab)Price and label checked 2026-10-11 on the brand’s site.
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References
- [1]Creatine monohydrate for lean mass, strength, and bone density in postmenopausal women: a systematic review and meta-analysis, 2026.
- [2]A 2-yr Randomized Controlled Trial on Creatine Supplementation during Exercise for Postmenopausal Bone Health. Medicine & Science in Sports & Exercise, 2023.
- [3]Dietary supplement considerations during glucagon-like peptide-1 receptor agonist treatment: A narrative review. Obesity Pillars, 2025.
- [4]Lean Mass and Musculoskeletal Preservation in GLP-1-Based Obesity Treatment: Nutrition, Exercise, Supplementation, and Monitoring Strategies. Metabolites, 2026.
- [5]Effect of creatine supplementation on kidney function: a systematic review and meta-analysis. BMC Nephrology, 2025.
- [6]The effects of creatine supplementation on cognitive function in adults: a systematic review and meta-analysis, 2024.