Creatine for women: what it does and how much

What is creatine, and where is it stored?

Creatine is a compound your body makes and also gets from meat and fish. About 95% of it is held in skeletal muscle, with small amounts in the brain and elsewhere. According to the International Society of Sports Nutrition (ISSN), you need roughly 1 to 3 g a day to keep normal stores topped up, and about half of that usually comes from food: a pound (about 450 g) of uncooked beef or salmon provides around 1 to 2 g. Vegetarians tend to have lower muscle stores. A 2025 review of creatine in women's health, led by Abbie Smith-Ryan, reports that women eat 30 to 40% less creatine than men on average.

In muscle, much of it is held as phosphocreatine, a quick reserve the body draws on during short, intense efforts like a heavy set or a sprint. Supplementing raises those stores.

What are the benefits of creatine for women?

The benefits of creatine for women in trials are small extra gains in strength and lean mass alongside resistance training, though the evidence is thinner than it is for men. The ISSN's position stand says benefits have been reported in both sexes, but most studies have been in men and some suggest women may see smaller gains.

The largest women-only analysis so far, a 2026 meta-analysis by Lin and colleagues, reviewed 34 studies with 692 participants. Pooling 21 of them, it found small positive effects on strength, power, high-intensity performance and lean-mass measures. The authors rated the certainty of that evidence low or very low, because the trials were small and varied a lot.

For postmenopausal women the evidence is firmer. A 2026 meta-analysis of seven randomised trials in 608 postmenopausal women (lasting 12 weeks to two years) found creatine added about 0.37 kg of lean mass and 7.5 kg to leg-press strength compared with placebo, rated moderate certainty. Upper-body strength moved the same way, but the result wasn't clear-cut.

In both analyses the benefits came in women who were training. In the postmenopausal analysis, trials of 3 g a day or less without training showed no measurable effect. The authors saw the clearest results at 5 g a day or more, combined with resistance training.

What the authorised claims say

In Great Britain, these are the only two authorised health claims for creatine:

• "Creatine increases physical performance in successive bursts of short-term, high intensity exercise." This applies to a daily intake of 3 g, for adults doing high-intensity exercise.
• "Daily creatine consumption can enhance the effect of resistance training on muscle strength in adults over the age of 55." This applies to 3 g a day with resistance training at least three times a week for several weeks, at an intensity of at least 65 to 75% of the heaviest weight you can lift once, with the workload increasing over time.

Applications to claim that creatine improves cognitive function, attention or memory have been assessed and rejected.

Does creatine help in perimenopause and menopause?

For perimenopause, nobody knows yet. The 2025 Smith-Ryan review states plainly that no research has directly evaluated creatine supplements in perimenopausal women, so anything you read about creatine easing perimenopause is extrapolation. Our guide to perimenopause supplements covers what does have evidence at that stage.

After menopause, the muscle findings above apply. For bone, the results so far are negative. Two long trials tested it directly:

• In Brazil, 200 postmenopausal women with low bone density took 3 g of creatine or a placebo for two years, without a training programme. There was no difference in bone density, bone markers, falls or fractures, and no difference in lean mass either (Sales and colleagues, 2020).
• In Canada, 237 postmenopausal women did resistance training three times a week and walked six days a week for two years, with creatine or placebo. Creatine had no effect on bone density at the hip or spine. Two measures of the shape and bending strength of the upper thigh bone held up better, and walking speed improved slightly (Chilibeck and colleagues, 2023).

The 2026 meta-analysis rated the evidence that creatine has no important effect on bone density as high certainty, so it shouldn't be relied on for bone health. If bone density worries you, talk to your GP.

What about the brain and mood?

The research here is early. A 2023 review by Candow and colleagues found that supplements can raise creatine in the brain, with some positive results on memory and thinking, mainly in older adults or during sleep deprivation. The same review says it's relatively unknown whether men and women respond differently.

On mood, the most cited trial gave 52 women with major depression the antidepressant escitalopram plus either 5 g of creatine or a placebo for eight weeks. The creatine group improved more, and sooner (Lyoo and colleagues, 2012). A 2026 systematic review found only five small randomised trials of creatine in mental health conditions, all using it as an add-on to medicine or talking therapy. Results were promising in some and showed no difference in others, and the review recorded hypomania or mania in 2 of 17 people taking creatine. Creatine is not a treatment for depression. Don't start it in place of, or change, anything your doctor has prescribed, and if you have bipolar disorder, speak to your psychiatrist first.

Many of the researchers in this field declare funding or advisory links with creatine manufacturers. That doesn't make their findings wrong, but when you read a creatine headline, it's worth checking how big the effect was and what the study's limits were.

Creatine for women: the evidence, claim by claim

The ratings for strength, lean mass and bone come from the meta-analyses' own certainty assessments. The rest is our summary of where the research stands.

How much creatine should a woman take per day?

3 to 5 g of creatine monohydrate a day is the dose used in most research, and you don't need to load. Taking 3 g a day for 28 days raised muscle creatine by about the same amount (around 20%) as 20 g a day for six days, according to a 2021 review by Antonio and colleagues. A loading phase (20 g a day, split into four 5 g doses, for 5 to 7 days) only gets you there faster. The 3 g figure is also the amount behind both authorised claims.

Creatine monohydrate is the form the ISSN calls the most extensively studied, and it describes claims for newer forms as currently unfounded. As a dry powder it stays stable for years, but in liquid it slowly turns into creatinine, faster when the drink is warm or acidic. Drink it soon after mixing. Our guide to how to take creatine compares monohydrate with HCl, micronised creatine, tablets and capsules.

What is the best time to take creatine for women?

The best time to take creatine for women is whenever you'll remember to take it every day. A 2021 review of timing found no consensus on the best moment to take creatine: some studies suggest after exercise may edge it, but the authors said the research isn't strong enough to be sure. A 2025 review of creatine in women's health gave no timing advice tied to the time of day, to exercise or to the menstrual cycle. It said women don't appear to need a different approach to supplementation from men, and that consistency at 3 to 5 g a day is an important factor (Smith-Ryan and colleagues). Take it every day, including rest days. Our creatine calculator works out a dose from your weight and how much water dissolves it.

Does creatine make women gain weight or feel bloated?

Creatine can make the scales go up a little in women, as in men, mostly from water drawn into your muscles. The ISSN describes weight gain as the only consistently reported side effect. The 2021 review found creatine increases water inside muscle cells in the short term, while longer studies suggest total body water stays in proportion to muscle mass. It also says a loading phase typically adds 1 to 3 kg of body mass, mostly water, and that creatine does not increase fat mass across a variety of populations.

A bloated feeling is more likely from a big dose than from the usual one. In one trial in male soccer players, 10 g in a single dose caused more diarrhoea than 5 g twice a day, and the 2025 women's health review reported no tolerability data from women themselves. If you're wary of bloating, skip the loading phase and keep each dose to 3 to 5 g. The full side effects section in how to take creatine has the figures. If you're also wondering whether you need electrolytes for training, see our hydration guide.

Does creatine cause hair loss?

No study has shown that it does. The concern traces back to one small 2009 study of 20 male college rugby players, who took 25 g of creatine a day for a week and then 5 g a day for two weeks. Their levels of dihydrotestosterone (DHT), the hormone at the centre of the hair-loss question, rose by 56% after the loading week and stayed 40% above baseline after the lower dose. Testosterone didn't change. The study didn't measure hair at all.

A 2025 randomised trial then tested the question directly: 38 resistance-trained men completed 12 weeks of 5 g of creatine or a placebo a day. There were no differences in DHT, in the ratio of DHT to testosterone, or in hair density, follicle counts or hair thickness. Both studies were in men and were short, and there are no trials in women that measure hair.

Is creatine safe for your kidneys?

In healthy people taking recommended doses, controlled trials haven't shown kidney harm. The ISSN found no compelling evidence that creatine damages kidney function, and a 2023 review reached the same conclusion. Creatine can raise creatinine in a blood test, because the body converts creatine into creatinine, and creatinine is what GPs use to estimate kidney function. A higher result doesn't necessarily mean anything is wrong, but tell your GP you take creatine before a kidney blood test.

The research in people who already have kidney disease is thin. If that's you, don't take creatine unless your kidney team agrees.

Who should avoid creatine?

The ISSN describes creatine as safe and well tolerated in healthy people, but a few groups should avoid it or check first.

Where Natura fits

Daily Creatine (creatine monohydrate, 3 g) is in the Natura cabinet (coming soon) with our single bottles, and our sport packs sit alongside. 3 g a day is the amount behind the authorised claim that creatine increases physical performance in successive bursts of short-term, high intensity exercise, a claim aimed at adults who train that way.