Creatine for women: benefits beyond the gym

Reviewed by Emma Carter, Senior Health & Nutrition Editor

Creatine has an image problem. It is filed under gym supplements for men, yet it is one of the most researched, most reliably effective supplements in existence, and women may have more to gain from it than they think. The benefits reach beyond lifting weights into muscle preservation, and possibly mood and brain function, especially as you age.

What creatine is

Creatine is a compound your body makes and also gets from food, mainly meat and fish. It is stored in muscle, where it helps regenerate energy for short bursts of intense effort. Supplementing raises the amount your muscles hold, giving them a bigger reserve to draw on. That is the whole mechanism, and it is remarkably well understood.

Women tend to store less creatine than men, with roughly 70 to 80% lower endogenous stores, and often eat less of it, particularly on vegetarian or vegan diets, which is part of why they can respond well to supplementing (Nutrients, 2021).

Benefits for women

The clearest benefit is for exercise. Combined with resistance training, creatine supports:

• Strength and power during workouts
• Building and keeping lean muscle, which matters more with age
• Training capacity, letting you do a little more work

Holding on to lean mass protects strength, metabolism and independence as you get older, which is why creatine is being studied in menopause and beyond. Research is also exploring roles in mood, cognition and bone health, though these are less settled than the exercise benefits. On bone specifically, the largest test so far was clear: 2 years of creatine plus exercise in 237 postmenopausal women had no effect on bone mineral density, though it did preserve some structural properties at the hip (Med Sci Sports Exerc, 2023). So creatine is worth taking for muscle and strength, not as a bone treatment. The early signals in women are worth noting: added to regular antidepressant treatment, 8 weeks of creatine reduced depressive symptoms, and it appears to help mental performance under sleep deprivation (Nutrients, 2021). Pairing creatine with enough protein and regular strength work is where it shows its value.

The myths

Two worries put women off, and both are misplaced:

• "It will make me bulky." It will not. Building visible muscle takes sustained heavy training over months. Creatine just helps you train slightly harder.
• "It causes weight gain." Any early change on the scale is usually a small amount of water pulled into the muscle, not fat, and it often settles.

Creatine does not damage the kidneys in healthy people, a claim that has been repeatedly tested and not supported.

How to take it

• 3 to 5 grams of creatine monohydrate a day, taken consistently
• Any time of day, with or without food
• No loading phase needed, though a short one speeds up saturation if you want faster results
• No need to cycle on and off

Choose plain creatine monohydrate. It is the most studied form, the cheapest, and the fancier versions do not outperform it. Look for a product that has been third-party tested for purity.

Safety and when to see a doctor

Creatine has one of the strongest safety records of any supplement, with decades of study. The International Society of Sports Nutrition calls creatine monohydrate the most effective ergogenic supplement available and reports no detrimental effects in healthy people at up to 30 g a day over 5 years, with 3 to 5 g a day as the standard maintenance dose and loading optional rather than required (ISSN position stand, 2017). The main reported effect at high doses is mild stomach upset, usually avoided by sticking to that 3 to 5 gram range.

Talk to your doctor before starting if you have kidney disease, are pregnant or breastfeeding, or take medication that affects your kidneys, since long-term data in those specific groups is more limited. For most healthy women, creatine is a low-risk addition to strength training rather than something that needs medical oversight.

Frequently asked questions

What does creatine do?

Creatine helps your muscles produce energy quickly during short, intense effort. Supplementing raises the amount of creatine stored in muscle, which supports strength, power and training performance, and helps build and maintain lean muscle when combined with resistance exercise.

Is creatine good for women?

Yes. Women naturally store less creatine than men and often get less from their diet, so they may respond well. Beyond exercise, research is looking at roles for creatine in mood, cognition and bone and muscle health across the lifespan, including around menopause.

Will creatine make women bulky or cause weight gain?

No, it will not make you bulky. Any early weight change is usually a small amount of water drawn into the muscle, not fat. Building noticeable muscle takes sustained heavy training. Creatine simply helps you train harder and hold on to lean tissue.

How do you take creatine?

The simplest approach is 3 to 5 grams of creatine monohydrate every day, at any time, taken consistently. A loading phase is optional and not necessary. Monohydrate is the most studied and cheapest form, and there is no need to cycle on and off.

References

1. A 2-yr randomized controlled trial on creatine supplementation during exercise for postmenopausal bone health · Medicine & Science in Sports & Exercise, 2023
2. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation · Nutrients, 2021
3. Creatine supplementation in women's health: a lifespan perspective · Nutrients, 2021