Creatine Is Not New. The Research on Women Is.

Creatine has suddenly become the supplement everyone is talking about, especially for women over 50. But here’s the funny part: Creatine is not new. Not even close.

Creatine was first identified as a natural component of meat in the 1830s. Scientists spent much of the next century figuring out how creatine and phosphocreatine help our cells make and recycle energy. The modern supplement story really took off in 1992, when researchers showed that taking creatine monohydrate by mouth could meaningfully increase creatine stores inside muscle and improve high-intensity exercise performance.

So when you see creatine marketed as the latest wellness discovery, just know that the science has been around for more than three decades.

For years, almost all of the excitement centered around athletes

Mostly male athletes. Creatine became known as something bodybuilders and competitive athletes used to improve strength, power, and training capacity. And yes, that’s where some of the strongest evidence still lives. Creatine helps replenish phosphocreatine, which helps regenerate ATP, the energy currency our muscles use during short, intense efforts.

But over time, researchers started asking a much more interesting question: if creatine supports cellular energy in muscle, what else might it do?

That is where the story gets particularly relevant for women over 50.

Creatine is now being studied for its role in sarcopenia, rehabilitation, cognition, mental fatigue, sleep deprivation, mood, and even neurodegenerative disease. There is especially intriguing research around depression in women, and emerging work looking at brain health and cognition. But I want to be careful here, because enthusiasm is moving faster than the evidence in some of these areas.

The clearest benefit remains in muscle, particularly when creatine is paired with resistance training. And that matters enormously after menopause, when maintaining muscle mass, strength, mobility, and metabolic health becomes more difficult and more important at the same time.

Women were historically underrepresented in creatine research, which is part of why we’re still filling in some major blanks. Estrogen and progesterone appear to influence creatine synthesis, transport, and metabolism, so there’s good biological reason to suspect that women's responses may change across the menstrual cycle, pregnancy, and menopause. Researchers are finally looking at this deliberately rather than treating women as smaller versions of men.

The results are not universally dramatic

Some recent analyses have found smaller gains in lean mass in women than in men, and studies looking at bone density and body composition during the menopause transition have been mixed. Cognition, mood, and menopausal-specific benefits are promising, but still emerging.

From a safety standpoint, creatine monohydrate has one of the best track records in the supplement world. The most commonly used dose is 3 to 5 grams a day, which is generally well tolerated in healthy adults. As always, kidney disease changes the conversation, and pregnancy and lactation are areas where we simply do not have enough safety data yet.

For women (and men) over 50, I give creatine two thumbs up. File it in the category of benefits far outweighing the low risk. But it’s not a replacement for protein or resistance training, and it will not suddenly rebuild muscle you’re not using.

And at this stage of life, I’m increasingly interested in anything evidence-based that helps us preserve strength, function, and independence.

Just don't call it new.

YOUR TOP CREATINE QUESTIONS, ANSWERED

‍