Creatine is one of the most studied supplements in the world — but research has long been dominated by studies on men. That is changing. A growing body of evidence shows creatine can be at least as effective for women, and in certain life stages, even more so.

Why Creatine Is Especially Relevant for Women

Women generally have lower creatine levels than men — partly due to lower muscle mass, and partly because oestrogen influences the enzymes involved in the body’s own creatine synthesis. A comprehensive 2021 review shows oestrogen regulates AGAT expression (a key enzyme in creatine synthesis), meaning hormonal changes during the menstrual cycle, pregnancy, and menopause directly affect creatine status.

What Does the Research Show?

Study 1 – Creatine Across the Female Lifespan

A landmark review in the Journal of the International Society of Sports Nutrition (2025) by Smith-Ryan et al. found that women with dietary creatine intake below 13 mg/kg/day had increased risk of certain gynaecological conditions, and that hormonal fluctuations throughout the female lifespan alter creatine synthesis and transport.

📄 Smith-Ryan AE et al. J Int Soc Sports Nutr. 2025;22(1):2502094.
doi.org/10.1080/15502783.2025.2502094

Study 2 – Creatine Strengthens Older Women

A meta-analysis in Nutrients (2021) by Dos Santos et al. analysed 10 randomised trials involving 211 older women. Creatine combined with resistance training produced significant upper-body strength gains, with the greatest effects in programmes lasting at least 24 weeks.

📄 Dos Santos EEP et al. Nutrients. 2021;13(11):3757.
doi.org/10.3390/nu13113757

Study 3 – Creatine and Bone Health After Menopause

A 2-year randomised trial in Medicine and Science in Sports and Exercise (2023) by Chilibeck et al. followed 237 postmenopausal women. Creatine improved bone geometric properties at the proximal femur — structural benefits for fracture resistance.

📄 Chilibeck PD et al. Med Sci Sports Exerc. 2023;55(10):1750-1760.
doi.org/10.1249/MSS.0000000000003202

Study 4 – Creatine and Depression in Women

In a double-blind RCT in the American Journal of Psychiatry (2012), 52 women with major depressive disorder received either 5 g creatine daily or placebo alongside antidepressant medication. The remission rate doubled (52% vs. 26%) — measurable as early as week 2.

📄 Lyoo IK et al. Am J Psychiatry. 2012;169(9):937-945.
doi.org/10.1176/appi.ajp.2012.12010009

Practical Advice for Women

  • Dose: 3–5 g creatine monohydrate per day — no loading phase needed
  • Timing: Any time of day — consistency matters more than timing
  • Menstrual cycle: Needs may be slightly higher during the luteal phase (days 15–28)
  • Menopause: Combine with resistance training for best effects on strength and bone

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