What the science actually says about creatine for women in midlife.
Creatine is one of those supplements that seems to pop up in my algorithm all the time. But unlike a lot of trendy ingredients that are all hype, this one has substance.
Before we dive into the data on taking creatine as a midlife lady, let’s quickly review what exactly creatine is and why it’s important. Creatine is a small molecule made from three different amino acids: arginine, glycine, and methionine. Most of us get creatine from eating meat, poultry, and fish. But our kidneys and liver can also make creatine. The typical American diet contains 0.5 to 1.5 grams of creatine per day, and the kidneys and liver make another 1 to 2 grams daily.
Creatine is important because it helps cells create ATP, a key source of energy for muscle and brain cells. That is why many of its benefits are related to athletic performance and recovery, as well as cognitive improvement.
For a long time, the bulk of the data supporting the use of creatine was in athletes and the elderly. I don’t know about you, but I wouldn’t categorize myself as either. But in 2025, we finally got some evidence specific to women in midlife.
The authors of a 2025 review found that in premenopausal women, those randomized to creatine loading had improved markers of cellular integrity compared to women who received a placebo. This benefit seemed to be especially pronounced when the women had their menstrual periods.
They also found that creatine supplementation improved sleep throughout the women’s menstrual cycles. Specifically, creatine seemed to improve total sleep duration, and that effect was enhanced when women performed resistance training that day.
Some of the best studies of creatine in women are in menopausal women in their late 50s and beyond. In that population, creatine combined with strength training increased strength, lean mass, muscle function, and bone health. And in older adults, creatine supplementation has been associated with improved cognitive function.
A second 2025 clinical trial of creatine supplementation in perimenopausal and menopausal women was one of the first to look specifically at perimenopausal women. Researchers randomized 36 women aged 40 and older with at least one perimenopausal symptom to receive one of three different creatine supplement regimens or a placebo. The women underwent a series of cognitive and physical tests and took surveys regarding fatigue and mental acuity before starting the creatine or placebo and again after taking it for eight weeks.
They found that the women who were given creatine saw improvements in measures of alertness, executive control, and reaction times compared to the women who received the placebo. The women who received creatine also reported improvements in fatigue, mood swings, and concentration compared to the women who received the placebo. A subset of the women in each of the four groups underwent special brain imaging to quantify brain creatine levels. Not surprisingly, the women who were given creatine had higher brain levels of creatine than those who were given the placebo.
Ultimately, there is evidence showing that creatine can help our muscles recover, improve our sleep, and reduce the cognitive symptoms that can really slow us down. It earns its place in my daily routine.
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