Creatine for Women in Perimenopause: What the Science Says | VANTA Coaching

Creatine for women in perimenopause is one of the most searched supplement topics right now, and for good reason. If you've been wondering whether it's just another trend dressed up in wellness packaging, here's what the science actually says.

It's not. Creatine is one of the most researched supplements in existence. And the science on why it's relevant for women in perimenopause is genuinely compelling with some important caveats worth knowing.

Let's get into it.

First: what is creatine, and where does it come from?
Creatine is a compound your body makes naturally from three amino acids: glycine, arginine, and methionine. Your body produces roughly half of what it needs; the rest comes from food, primarily red meat, fish, and pork. If you eat a mostly plant-based diet, your baseline levels are likely lower. It's stored predominantly in muscle tissue. And its primary job is energy- specifically, keeping your cells powered up when demand spikes.

The mechanism: creatine as an ATP reserve
To understand why creatine matters, you need to understand ATP (adenosine triphosphate). ATP is the molecule your cells use as fuel. Every contraction of a muscle fibre, every firing of a neuron, every metabolic process in your body runs on ATP. The catch: your cells can't store much ATP at once. When you exert yourself- lifting, sprinting, even concentrating hard - ATP gets used up fast. Your body needs to regenerate it, quickly.

This is where creatine comes in.

Creatine is an essential substrate for the reaction to create ATP from creatine and phosphocreatine (PCr). When ATP is broken down during exertion, phosphocreatine donates a phosphate group to regenerate it almost instantly. This recycling also serves as a metabolic buffer that helps maintain pH within muscle cells, supporting energy availability and delaying fatigue. Think of phosphocreatine as a fast-access energy reserve, a battery that recharges your ATP supply on demand. The more phosphocreatine you have stored, the better your cells can keep up with high-intensity demand, whether that's in the gym or in your brain at 3pm when you're trying to focus.

Creatine supplementation is most effective for high-intensity, short-duration activities, or repeated bouts of high-intensity effort with short rest periods- things like jumping, sprinting, and resistance training — because increased PCr stores allow more rapid ATP regeneration via the creatine kinase reaction. 

Why this matters more for women — especially in perimenopause
Here's something most people don't know: women have approximately 70–80% lower endogenous creatine stores compared to men. You start from a lower baseline, and then perimenopause happens.

As estrogen declines during perimenopause, mitochondria- the energy factories in your cells- run less efficiently. Your cells become less effective at handling calcium, and your antioxidant defences weaken. The result: your body's ability to produce and sustain energy is compromised at a cellular level. Declining estrogen is also associated with muscle loss- and less muscle means less creatine storage capacity, which means less ATP production. This creates a compounding effect: less muscle, less creatine, less energy. This is precisely why supplementation becomes particularly relevant at this life stage.

Beyond the gym: creatine and the brain
The energy demands don't stop with your muscles. The adult brain accounts for around 20% of your body's total energy expenditure at rest, despite making up only about 2% of total body mass.  It is one of the most energy-hungry organs you have. Females have been reported to have lower levels of creatine in the brain, particularly in the frontal lobe - the region that controls mood, cognition, memory, and emotion. As a result of these sex differences in brain creatine concentrations, supplementation may be even more effective for women in supporting a pro-energetic environment in the brain. This has practical implications for some of the most common and distressing perimenopause symptoms: brain fog, memory lapses, mental fatigue, and mood instability. Creatine's role in ATP regeneration can benefit brain function, potentially improving cognitive performance and reducing mental fatigue. 

What about muscle, bone, and sleep?
Muscle: The evidence here is more established. Creatine supplementation combined with resistance training has shown favourable effects on skeletal muscle size and function in postmenopausal women, particularly at higher doses. You won't bulk up - you'll be better placed to preserve and build the lean mass that perimenopause tends to erode.

Bone: A 2023 two-year clinical trial found that creatine with supervised exercise had no impact on bone mineral density, but did improve some bone  properties which may translate to improved structural resilience rather than raw density measures.

Sleep: Emerging data is interesting here too. A 2024 study in resistance-trained women found increased sleep duration on training days with creatine supplementation, and a 2025 trial in menopausal women found associations with improved sleep duration. 

The practical bit: how much, what form, when
Form: Creatine monohydrate. It has the most research behind it, it's affordable, and it's bioavailable. Don't pay a premium for fancier versions.

Dose: A daily dose of 5-10 grams of third-party tested creatine monohydrate is considered safe for most healthy women in perimenopause. Jenerise No loading phase required.

Timing: Doesn't matter much. Consistency beats timing- taking it daily, whether near training or not, appears to be what drives outcomes. 

Quality: Look for third-party tested products. The supplement industry is not tightly regulated, so verification matters.

One note: If you have kidney disease or are on any nephroactive medications, speak to your doctor first.

The bottom line
Creatine is not a trend. It's not a steroid. And it's not just for athletes. It's a molecule your body already makes, that plays a fundamental role in how your cells generate and sustain energy - in your muscles and your brain. In perimenopause, when your hormones are actively disrupting that energy system, supplementing creatine is one of the most evidence-supported, low-risk things you can do.

As always: supplements work best alongside the foundations. Resistance training, adequate protein, sleep, and managing the hormonal picture (whether through HRT or lifestyle) are the levers that create the context in which creatine can do its job.

References:

1. Smith-Ryan AE, Cabre HE, Eckerson JM, Candow DG. Creatine supplementation in women's health: a lifespan perspective. Nutrients. 2021;13(3):877. https://doi.org/10.3390/nu13030877
2. Smith-Ryan AE, DelBiondo GM, Brown AF, Kleiner SM, Tran NT, Ellery SJ. Creatine in women's health: bridging the gap from menstruation through pregnancy to menopause. Journal of the International Society of Sports Nutrition. 2025;22(1):2502094. https://doi.org/10.1080/15502783.2025.2502094
3. Chilibeck PD, Candow DG, Gordon JJ, et al. A 2-yr randomized controlled trial on creatine supplementation during exercise for postmenopausal bone health. Medicine & Science in Sports & Exercise. 2023;55(10):1750–1760. https://doi.org/10.1249/MSS.0000000000003202
4. Prokopidis K, Giannos P, Triantafyllidis KK, et al. Effects of creatine supplementation on memory in healthy individuals: a systematic review and meta-analysis of randomized controlled trials. Nutrition Reviews. 2023;81(4):416–427. https://doi.org/10.1093/nutrit/nuac064

If this perspective resonates, you may also find it helpful to explore our other article on Perimenopause and Menopause:  Perimenopause Brain Fog: And What's Actually Happening