It is an exception in the world of dietary supplements: creatine is one of the very few active ingredients with an official health claim designed for people over 55.
If creatine is such a popular supplement among athletes, it is because of its ability to provide muscles with instant energy during short, intense efforts, helping them improve more effectively in training.
Yet over the years, we gradually lose muscle. That is where the question researchers have been asking comes from: if creatine helps muscles become stronger, could it also help them better withstand the passage of time?
This question has also expanded to another aspect: cognition, given that creatine also serves as an energy reserve for the brain.
I looked at what studies can actually confirm today. Let’s take stock!
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After 50, muscles quietly wear down
Wrinkles, joint discomfort, or even gray hair: these are the first signs we attribute to aging.
Other changes are more subtle, such as the loss of muscle mass. And this decline has a name: sarcopenia. It first shows up as a loss of strength, even before the loss of volume.
The first warning signs? Difficulty getting up from a chair without using your hands, carrying your groceries, or catching yourself when you stumble.
Not all muscle fibers age in the same way. Alongside slow-twitch fibers, which help us walk, the fast-twitch fibers, used for short, powerful bursts of effort, are the ones that shrink the most with age.
This study showed that the fast-twitch fibers of 71-year-old men were 29% smaller than those of 23-year-old men.
The good news? In this study, six months of strength training made these fibers grow back by about 24%. In other words, older muscle is still capable of responding to training.
And fast-twitch fibers, which are the most affected by aging, draw their energy from phosphocreatine, a small reserve that replenishes ATP, the cells’ fuel, in a few seconds. The fuller it is, the longer the muscle can sustain effort: one or two more reps per set, which add up over the months.
Creatine supplementation can enhance the effects of strength training
Since 2017, Europe has authorized a health claim stating that creatine can enhance the effects of strength training on muscle strength in people over 55.
But be careful, this benefit has only been demonstrated under three conditions:
- 3 g of creatine per day
- weight training at least three times a week, for several weeks
- loads that increase progressively
In other words, creatine does not work alone and is not miraculous: it amplifies the effects of training.
This meta-analysis also compared adults over 60 who did weight training, with or without creatine. Those who took it gained a little more strength. On the other hand, the benefit on muscle mass and on everyday movements has not been demonstrated.
What if creatine also nourished the brain?
The brain is a very energy-hungry organ… and it also uses phosphocreatine. Hence the idea that supplementation could support memory with age.
This meta-analysis seems to point in that direction: creatine would slightly improve memory, and more so in people aged 66-76. But this result in older adults is based on only two small trials, for a total of 57 people.
And above all: in late 2024, the EFSA rejected the claim regarding cognitive functions: the cause-and-effect link is not established. So no creatine can claim, in Europe, an effect on memory.
Regarding Alzheimer’s disease, a pilot trial conducted in 20 patients observed an increase in creatine in the brain and better scores on certain tests. But I remain cautious about these results, because there was no placebo group to compare with.
Before you get started
It’s often the first concern: does creatine strain the kidneys? According to this meta-analysis, it slightly raises creatinine on a blood test, without changing kidney function. That is completely normal, since creatinine is the breakdown product of creatine, even though we lack long-term data beyond one year of creatine use.
On the other hand, if you need to have blood work done, I simply recommend that you tell your doctor about your supplementation.
And as for the dose, the most studied form remains creatine monohydrate, and the European claim is based on 3 g per day. I do not recommend the “loading phase” protocols at 20 g per day that are still circulating today.
Before starting, talk to your doctor if you:
- have kidney failure or a history of kidney disease
- are taking a treatment that puts stress on the kidneys, such as long-term use of diuretics or anti-inflammatory drugs
- are taking several chronic medications
- drink little, because the sensation of thirst decreases with age
I conclude that in healthy older adults, creatine provides a modest gain in strength, provided that you train regularly. As for memory, the promises still go far beyond the evidence.
What really makes the difference is what surrounds it: muscle strengthening two to three times a week, protein spread across meals, walking every day, and enough sleep
Sources and scientific studies
- Cruz-Jentoft AJ et al. (2019). Sarcopenia: revised European consensus on definition and diagnosis. Age and Ageing, 48(1):16-31.
- Nilwik R et al. (2013). The decline in skeletal muscle mass with aging is mainly attributed to a reduction in type II muscle fiber size. Experimental Gerontology, 48(5):492-498.
- European Commission (2017). Commission Implementing Regulation (EU) 2017/672 of 7 April 2017 authorizing a health claim related to creatine. Official Journal of the European Union.
- Yao L, Yang D, Gao J (2026). Effects of resistance training combined with creatine supplementation on muscle strength, physical function, and muscle mass in older adults: a systematic review and three-level meta-analysis. Frontiers in Nutrition, 13:1919884.
- Prokopidis K et al. (2023). Effects of creatine supplementation on memory in healthy individuals: a systematic review and meta-analysis of randomized controlled trials. Nutrition Reviews, 81(4):416-427.
- EFSA NDA Panel (2024). Creatine and improvement in cognitive function: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006. EFSA Journal, 22(11):e9100.
- Smith AN et al. (2025). Creatine monohydrate pilot in Alzheimer’s: Feasibility, brain creatine, and cognition. Alzheimer’s & Dementia: Translational Research & Clinical Interventions, 11(2):e70101.
- Tsiaras A et al. (2026). The Effect of Creatine Supplementation on Kidney Function: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Journal of Renal Nutrition.
