- Aug 14, 2018
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"What does creatine help with?" is a better question than "does creatine work," because it invites a ranked answer instead of a yes or no — and the ranking is where the useful information lives. Not all of creatine's claimed benefits have equal support, and knowing which claims are solid and which are speculative is the difference between using it well and being sold something.
At the top of the list, with the strongest evidence, is strength and power. Study after study shows that people supplementing while resistance training gain more strength and power than matched controls — on lifts, jumps, and sprints. This is the claim the research supports most firmly, and it is the reason creatine is a staple in strength sports.
Next is lean mass. People supplementing during a structured training program tend to gain slightly more lean mass than those training without it. The effect is modest and it is tangled up with the water creatine pulls into muscle cells, so the scale number overstates it — but body-composition studies that account for water still find a real, if small, advantage. The mechanism is the same as the strength effect: more quality work done over time.
Then there is recovery between sets and sessions. The evidence here is thinner but consistent with the mechanism: faster ATP regeneration should mean better performance on later sets, and studies generally find that lifters hold their performance better across a workout when supplementing. It is a supporting effect rather than a headline one.
At the bottom of the list, with the weakest and newest evidence, are the brain claims — cognitive performance under sleep deprivation, and possible support for brain health in older adults. Early studies are intriguing, the mechanism is plausible, but the evidence is far from settled, and anyone selling creatine as a brain supplement is ahead of the science.
The ranked picture is honest and useful: strength and power, firmly; lean mass, modestly; recovery, plausibly; brain effects, not yet proven. That is a strong record for a single cheap compound — and a good reminder to check which claim is being made before deciding it applies to you.
Which benefit were you actually after when you first looked into it?
At the top of the list, with the strongest evidence, is strength and power. Study after study shows that people supplementing while resistance training gain more strength and power than matched controls — on lifts, jumps, and sprints. This is the claim the research supports most firmly, and it is the reason creatine is a staple in strength sports.
Next is lean mass. People supplementing during a structured training program tend to gain slightly more lean mass than those training without it. The effect is modest and it is tangled up with the water creatine pulls into muscle cells, so the scale number overstates it — but body-composition studies that account for water still find a real, if small, advantage. The mechanism is the same as the strength effect: more quality work done over time.
Then there is recovery between sets and sessions. The evidence here is thinner but consistent with the mechanism: faster ATP regeneration should mean better performance on later sets, and studies generally find that lifters hold their performance better across a workout when supplementing. It is a supporting effect rather than a headline one.
At the bottom of the list, with the weakest and newest evidence, are the brain claims — cognitive performance under sleep deprivation, and possible support for brain health in older adults. Early studies are intriguing, the mechanism is plausible, but the evidence is far from settled, and anyone selling creatine as a brain supplement is ahead of the science.
The ranked picture is honest and useful: strength and power, firmly; lean mass, modestly; recovery, plausibly; brain effects, not yet proven. That is a strong record for a single cheap compound — and a good reminder to check which claim is being made before deciding it applies to you.
Which benefit were you actually after when you first looked into it?