Is It Legit?
Debunked
“Creatine is only for bodybuilders”
Educational, not medical advice. Always consult a qualified healthcare provider before changing your diet, supplements, or routine. Full disclaimer.
What the science says
Creatine's evidence base reaches far beyond the gym. Reviews of randomised trials link it to better memory and attention in ordinary adults, and to more muscle, more strength and better everyday physical function as people age. It is also one of the most heavily safety-tested supplements in nutrition science, and the research now covers older adults and patient groups, not just athletes.
Full analysis
A 2025 review of creatine monohydrate in older adults and clinical populations concluded that, mainly when paired with exercise training, it is safe and improves whole-body lean mass, regional muscle size, muscle strength, bone area and thickness, everyday functional ability, glucose handling, and cognition and memory [1].
The same review points to possible uses in age-related muscle loss, thinning bones, frailty and some metabolic and neuromuscular disorders - populations that have nothing to do with bodybuilding [1].
The brain evidence is not a side note. A 2024 review pooling 16 randomised trials - studies where people are assigned by chance to creatine or a dummy pill - in 492 adults aged from about 21 to 76 found that creatine improved memory, attention and information-processing speed [2].
That same review is honest about the limits. Overall cognitive function and executive function did not improve, and the authors rate their confidence as moderate for the memory result and low for the rest, so larger trials are still needed [2].
Creatine monohydrate is also among the most studied supplements in nutrition science. A panel of creatine researchers reviewing the recurring concerns counted more than 500 peer-reviewed publications and found no evidence that creatine damages the kidneys in people whose kidneys are healthy to begin with [3].
That panel took on the exact question behind this claim - whether creatine is useful only for lifting and sprint-type efforts - and concluded that it is not, and that older adults benefit as well as athletes [3].
Typical intakes across this research are 3 to 5 grams of creatine monohydrate a day, or about 0.1 grams per kilogram of body weight, in otherwise healthy adults [3]. People with existing kidney disease, and pregnant women, have not been properly studied, so caution and a conversation with a doctor apply there.
Taken together, the evidence goes well past bodybuilding.
Key studies
The 3 studies that carry the verdict, out of 17 reviewed.
[1]Creatine monohydrate supplementation for older adults and clinical populations
Candow DG, Ostojic SM, Chilibeck PD, et al. · Journal of the International Society of Sports Nutrition · 2025
In older adults, creatine monohydrate - mainly when combined with exercise training - was safe and improved lean body mass, muscle size, muscle strength, bone area and thickness, everyday functional ability, glucose handling, cognition and memory.
View paper[2]The effects of creatine supplementation on cognitive function in adults: a systematic review and meta-analysis
Xu C, Bi S, Zhang W, et al. · Frontiers in Nutrition · 2024
Pooling 16 randomised trials in 492 adults aged from about 21 to 76, creatine monohydrate improved memory, attention and information-processing speed, while overall cognitive function and executive function did not improve.
View paper[3]Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show?
Antonio J, Candow DG, Forbes SC, et al. · Journal of the International Society of Sports Nutrition · 2021
An international panel reviewing more than 500 peer-reviewed creatine publications concluded that 3 to 5 grams a day is well tolerated, does not damage the kidneys in healthy people, and is useful well beyond resistance and power sports, including for older adults.
View paper