"Creatine and alcohol" is searched around 2,300 times a month in the United States and answered everywhere with confident physiology: alcohol dehydrates you, creatine draws water into muscle, therefore the two fight. The physiology is plausible. The evidence for it does not exist — and the absence is itself worth documenting carefully, because a documented absence is a finding and an assumed one is a guess.
The census, stated so it can be repeated
Run on 19 September 2026.
PubMed, for the phrase "creatine supplementation"[tiab] together with alcohol[tiab]: three records.
- Creatine supplementation exacerbates ethanol-induced hepatic damage in mice — Swiss mice, 14 and 28 days (Marinello PC, Cella PS, Testa MTJ, et al., Nutrition 2019;66:122–130, PMID 31265967)
- Creatine Supplementation Does Not Prevent the Development of Alcoholic Steatosis — Wistar rats, four to five weeks (Ganesan M, Feng D, Barton RW, et al., Alcohol Clin Exp Res 2016;40(11):2312–2319, PMID 27581622)
- Body composition and nutritional assessments in soccer — a review in which alcohol appears only as a residual share of players' dietary energy (PMID 9637191)
ClinicalTrials.gov, creatine as intervention, alcohol as condition: zero of 359.
The control, because a zero is indistinguishable from a broken search
The same query shapes, without the alcohol term, return a full field: 2,854 PubMed records tagged as randomised controlled trials mention creatine, and 30 of the 359 registered creatine studies have posted results. The searches work. There is simply nothing in the box.
The two studies that do exist, and which way they point
Both are animal studies, both used 1 per cent creatine in the diet, and both tested the hopeful hypothesis and failed to confirm it.
The rat study set out the reasoning explicitly. The final step in creatine synthesis, catalysed by guanidinoacetate methyltransferase, takes place largely in the liver and consumes as much as 40 per cent of all S-adenosylmethionine-derived methyl groups. Alcohol depresses the hepatic ratio of that methyl donor to its by-product, which is one route by which alcoholic liver injury develops. If dietary creatine removed the need to make creatine, it might spare the methyl groups and protect the liver. Pair-fed on the Lieber-DeCarli ethanol diet with or without creatine for four to five weeks, it did not.
The mouse study went further in the wrong direction: ethanol produced mild cell degeneration, oxidative lesions and inflammation, and the paper's title records that adding creatine exacerbated the damage.
Neither result transfers cleanly to a person. One per cent of a rodent diet is not a human serving, mice fed 5 per cent ethanol calories are not a Saturday night, and a liver under sustained alcohol feeding is not a healthy liver. What they establish is narrow and still useful: the only two experiments that have ever put creatine and ethanol in the same animal found no protection, and one found harm. Nobody should be repeating the "creatine protects the liver from alcohol" line, and nobody should be extrapolating the mouse result to people either.
Why the search engines mislead
A naive search for creatine and alcohol returns far more than three records, and every additional hit is a different word wearing the same spelling.
Of the ten records tagged as randomised controlled trials that mention both, not one tests the combination. They split into two families:
- Creatine kinase as a muscle-damage marker in alcohol studies — the alcohol-and-recovery trials below, plus a 1978 study of serum creatine kinase after diazepam injection.
- Creatine as a spectroscopy reference peak — an acamprosate study measuring central glutamate in detoxified alcohol-dependent patients, where creatine is the denominator of a ratio.
The rest are an ethanol septal-ablation study in cardiomyopathy and a duodenal-infusion safety trial. This is the same failure mode documented on creatine and the brain: the word in the abstract is a measuring instrument, not a supplement.
What has been studied: alcohol and recovery, without creatine
The question underneath the search is usually "does drinking wreck my training", and that question does have trials — none of which involve creatine.
| Trial | Participants | Ethanol dose | Finding |
|---|---|---|---|
| Rugby league, post-match (PMID 22836602) | 9 male players | 1 g/kg, 4 h post-match | Countermovement jump fell 10.5% vs 2.4% in controls; cognitive test time significantly slower next morning; no effect on creatine kinase, C-reactive protein, cortisol or testosterone |
| Eccentric damage in women (PMID 27768503) | 8 young women | 0.88 g/kg, immediately post-exercise | No effect on recovery of concentric, eccentric or isometric force at 36 and 60 hours; creatine kinase did not change significantly |
They disagree, and the disagreement is informative rather than embarrassing: the rugby trial measured power and cognition the morning after, the eccentric trial measured force recovery over two and a half days. Alcohol looks worse for the first than for the second. Both are very small — nine men and eight women — and neither says anything about creatine.
What nobody has measured
To be precise about the hole, so that a future study can fill it:
- No trial has given creatine and alcohol to the same human participants.
- No trial has measured whether alcohol affects muscle creatine uptake, total creatine content, or the phosphocreatine store.
- No trial has measured whether alcohol affects the performance benefit creatine produces.
- No registered study names alcohol as a condition among 359 creatine registrations.
The dehydration argument in particular has never been tested with creatine in the room, and it is worth noting that the dehydration claim about creatine itself has not held up well where it has been tested — the creatine side effects page covers what the controlled record contains, and creatine and the kidneys covers the renal version of the same fear.
This page reports what the literature holds and what it does not. It makes no recommendation about drinking, in either direction, and any question about alcohol with an existing liver, kidney or cardiac condition, or alongside medication, belongs with a clinician, per our editorial standards.
Key figures
- PubMed records pairing creatine supplementation with alcohol: 3 — two rodent, one incidental
- Registered studies: 0 of 359
- Control: 2,854 creatine records tagged as randomised trials
- Randomised trials mentioning both terms: 10, none testing the pair
- Liver methylation burden of creatine synthesis: up to 40% of SAM-derived methyl groups
- Human trials of creatine with alcohol: zero
Sources
- Marinello PC, Cella PS, Testa MTJ, et al. Creatine supplementation exacerbates ethanol-induced hepatic damage in mice. Nutrition 2019;66:122–130 — PMID 31265967 · doi:10.1016/j.nut.2019.05.004
- Ganesan M, Feng D, Barton RW, et al. Creatine Supplementation Does Not Prevent the Development of Alcoholic Steatosis. Alcohol Clin Exp Res 2016;40(11):2312–2319 — PMID 27581622 · doi:10.1111/acer.13214
- Body composition and nutritional assessments in soccer. Int J Sport Nutr 1998 — PMID 9637191
- Murphy AP, Snape AE, Minett GM, et al. The effect of post-match alcohol ingestion on recovery from competitive rugby league matches. J Strength Cond Res 2013;27(5):1304–12 — PMID 22836602 · doi:10.1519/JSC.0b013e318267a5e9
- McLeay Y, Stannard SR, Mundel T. Effect of Alcohol Consumption on Recovery From Eccentric Exercise Induced Muscle Damage in Females. Int J Sport Nutr Exerc Metab 2017;27(2):115–121 — PMID 27768503 · doi:10.1123/ijsnem.2016-0171
- ClinicalTrials.gov API v2 — creatine intervention census and alcohol condition query, run 2026-09-19 — clinicaltrials.gov
- National Library of Medicine. PubMed E-utilities — census searches and classification of the ten randomised-trial records, run 2026-09-19 — pubmed.ncbi.nlm.nih.gov
All sources retrieved 2026-09-19. Literature and registry counts are as of that date.