Is creatine only for athletes?

No. It is one of the most studied supplements in existence [3], and the research in women past 40 covers muscle and bone [1, 2] and even mood and cognition [1], as much as it covers athletic performance.

Which form of creatine has the evidence behind it?

Plain, unflavored creatine monohydrate. The fancier, pricier forms do not have better evidence behind them [3].

Does creatine harm the kidneys?

The long-standing worry has not held up in research on healthy people [1, 2]. If you have kidney concerns or take medications, check with your prescriber first, as you would with anything new.

From the blog

Creatine for Women in Midlife: What the Research Actually Says

July 12, 2026 · Last reviewed August 8, 2026

Written and reviewed by Rev. Dr. LaVeena B. Archers, PhD
Doctor of Natural Medicine · Board-certified in Holistic Functional Medicine and Functional Nutrition
Educational content only. Not medical advice, and never a substitute for your own care. Scope of practice.

Quick answers

Is creatine only for athletes?: No. It is one of the most studied supplements in existence ^[3], and the research in women past 40 covers muscle and bone ^{[1, 2]} and even mood and cognition ^[1], as much as it covers athletic performance.
Which form of creatine has the evidence behind it?: Plain, unflavored creatine monohydrate. The fancier, pricier forms do not have better evidence behind them ^[3].
Does creatine harm the kidneys?: The long-standing worry has not held up in research on healthy people ^{[1, 2]}. If you have kidney concerns or take medications, check with your prescriber first, as you would with anything new.

Creatine monohydrate is one of the most studied supplements in existence ^[3], it is inexpensive, and the research in women past forty now reaches well beyond the gym: muscle and bone ^{[1, 2]}, mood and mental sharpness ^[1]. The plain, unflavored monohydrate form is the one with decades of evidence behind it ^[3], the old worry that it harms healthy kidneys has not held up ^{[1, 2]}, and it works best alongside strength training because it supports the work rather than replacing it ^[2].

For years, creatine was filed away as a thing only young men at the gym cared about. That was a mistake. What has actually been understudied, as the research itself points out, is its use specifically in women ^[1] — which is exactly the gap the newer research below starts to close.

What does creatine actually do?

Creatine helps your muscles produce energy quickly. That is why it supports strength and the ability to keep training as you age, which matters enormously for women: muscle tends to decline with age generally, and midlife is a reasonable place to start paying attention, whatever share of that decline turns out to be about hormones specifically versus time alone.

What does creatine do beyond muscle?

The newer and more interesting creatine research looks past the gym. It points at bone ^[2], and at the mood and mental sharpness that perimenopause can blur ^[1]. Neither is settled. The brain, like muscle, is an energy-hungry organ, and creatine appears to help it work. For a woman thinking about both her strength and her focus through the change, that is a great deal of value from one humble powder.

What should you look for when buying creatine?

A few simple pointers:

The plain, unflavored monohydrate form is the one with decades of evidence behind it. The fancier, pricier versions have not been shown to work any better ^[3].
It works best alongside strength training, since it supports the work rather than replacing it ^[2].
The old worry that it harms healthy kidneys has not held up in the research ^{[1, 2]}. If you have kidney concerns or take medications, check with your prescriber first, as you would with anything new.

Is creatine worth taking?

Creatine is one of the rare supplements that is cheap, well studied, and genuinely aligned with aging strong. It will not do the work for you, and it is no substitute for protein, sleep, and movement. Paired with those foundations, it is a small, sensible edge.

I go deeper on creatine, protein, and building a body that carries you in The Muscle You Keep, and on the wider root-cause picture in Bad Medicine Blues. Read a free chapter.

Sources

Smith-Ryan AE, Cabre HE, Eckerson JM, Candow DG. Creatine supplementation in women's health- a lifespan perspective. Nutrients. 2021;13(3):877. doi.org/10.3390/nu13030877
Chilibeck PD, Candow DG, Landeryou T, Kaviani M, Paus-Jenssen L. Effects of creatine and resistance training on bone health in postmenopausal women. Med Sci Sports Exerc. 2015;47(8):1587-1595. doi.org/10.1249/MSS.0000000000000571
Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand- safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18. doi.org/10.1186/s12970-017-0173-z

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