Creatine Is Not Just for Bodybuilders: Strength, Healthy Aging, and the Myths, Checked

If you picture a creatine user as a 22-year-old with a gallon jug and a gym selfie, the research disagrees with you. Creatine is the fastest-growing supplement in America, and a lot of the new users are women in their 40s, 50s, and beyond who have never touched a barbell and do not plan to. They are taking it for a different reason: strength is not a cosmetic goal after a certain age. Strength is carrying the groceries, getting up off the floor, and staying independent.

Here is what the evidence actually says, drawn from Examine.com, which has reviewed creatine across 125 trials and 20 meta-analyses.

What creatine does, in plain terms

Your muscles store creatine as quick-access energy for short, hard efforts: the last reps of a set, a sprint, a heavy lift, hauling a bag of water softener salt up the basement stairs. Topping up those stores lets you do a little more work, a little more often. Over weeks of training, that adds up.

Examine calls creatine among the most well-studied and effective supplements for improving exercise performance. Its grades: strength, strongest grade (A), a moderate improvement across 21 studies; muscle mass, grade B, a small improvement.

The healthy aging case

This is the part most people miss. In Examine's database, creatine's effect on strength in healthy aging muscle also earns the strongest grade (A, moderate improvement), when paired with resistance training. Read that pairing again, because it is the whole deal: creatine is not a substitute for training, it is a multiplier on it. Two or three sessions a week of resistance work you enjoy, plus creatine, is a proven, unglamorous, very effective combination at almost any age.

What about the brain?

Carefully. Creatine for general cognition, attention, and processing speed shows no effect in Examine's grades. One narrower outcome, memory, shows a small improvement (grade B), and the research on mood is early. Anyone selling creatine as a brain booster is ahead of the evidence. Anyone calling it useless for anything but biceps is behind it.

The two myths everyone asks us about

"Does creatine cause hair loss?" Examine's verdict: although plausible, it seems unlikely. The worry traces to one 2009 study in young rugby players where a hormone called DHT rose during three weeks of creatine, while staying well within the normal range. Ten later trials found no such effect, and a 12-week randomized trial in 2025 measured DHT, testosterone, and actual hair growth parameters and found no significant changes in any of them.

"Is creatine hard on the kidneys?" Creatine does raise a lab marker called creatinine, which is the marker doctors watch for kidney trouble, so tell your doctor you take it before bloodwork. But in Examine's grading, kidney function itself showed no effect across the studies, and blood urea nitrogen showed no effect either. The reasonable cautions: if you already have kidney disease, talk with your doctor first, and be thoughtful about combining creatine with medicines that stress the kidneys.

How to take it, the simple way

• Form: creatine monohydrate. It is the most researched form and usually the cheapest. Micronized versions simply dissolve more easily.
• Dose: 3 to 5 grams a day, about a teaspoon, in water, a shake, coffee, whatever you will actually do daily. Timing does not matter much.
• Loading is optional. You can load with roughly 20 to 25 grams a day, split into four doses, for 5 to 7 days, then drop to maintenance, or you can skip loading entirely and reach the same place a few weeks slower. Most of our customers skip it.
• Expect: a little extra water held inside the muscle (that is the point, it is not bloating or fat), and possibly mild stomach grumbling if you take a big dose dry. Splitting the dose fixes most of that.

Who should pause and ask first

People with kidney disease, anyone pregnant or nursing (safety has not been established), and anyone on kidney-stressing medication. Everyone else: this is about as well-tested as supplements get, and quality still matters, since testing has found creatine products on the market containing far less creatine than their labels claim.

The bottom line

Creatine monohydrate, 3 to 5 grams a day, plus resistance training you can stick with. That is the whole protocol, and it is one of the few in the supplement world backed by decades of consistent research. If you are starting, or restarting, come talk it through with us at B-Alive in Green Bay or De Pere. We will happily sell you the plain, inexpensive monohydrate and talk you out of the expensive designer version you do not need.

This article is general education, not medical advice. Talk with your healthcare professional about what is right for you.