Yes, you can put creatine in coffee: none of the sources this desk read forbids mixing the two, and stirring a scoop into a mug is a matter of preference rather than regulation. The worry comes from a single 1996 trial in which caffeine cancelled creatine’s performance gain, at doses far above one coffee with a 3 g serving.
This is an evergreen explainer. This desk read the trial’s abstract, the NHS caffeine estimates and the Great Britain nutrition and health claims register page on 19 October 2026.
Where does “caffeine cancels creatine” come from?
From a study by Vandenberghe and colleagues at Katholieke Universiteit Leuven, published in the Journal of Applied Physiology in February 1996 under the title “Caffeine counteracts the ergogenic action of muscle creatine loading”. Its abstract on PubMed carries these figures.
| Trial detail | As the abstract gives it |
|---|---|
| Participants | 9 healthy male volunteers |
| Supplementation period | 6 days |
| Conditions | Placebo; creatine; creatine plus caffeine |
| Creatine dose | 0.5 g per kg of body weight a day |
| Caffeine dose | 5 mg per kg of body weight a day |
| Exercise test | Intermittent contractions, 2-minute rests between series |
| Muscle phosphocreatine | Up 4-6% with creatine, and with creatine plus caffeine |
| Muscle ATP | Unchanged in all three conditions |
| Dynamic torque | Up 10-23% with creatine alone; not changed with caffeine added |
The authors concluded that creatine’s ergogenic effect “is completely eliminated by caffeine intake”. The abstract also shows what caffeine did not do: phosphocreatine rose in both creatine arms. It was the torque gain that disappeared.
Does caffeine cancel out creatine?
In that trial, at those doses, the performance gain went. That is a narrower finding than the slogan built on it. Nine men is a small sample, and the creatine dose was a loading dose. This desk read no later trial for this piece, so it makes no claim about what later research has or has not found.
How many cups of coffee was the trial’s caffeine dose?
The figures below are this desk’s own illustration for a 70 kg adult, worked from the abstract’s per-kilogram doses and the NHS estimate.
| Item | Trial dose at 70 kg | Everyday comparison |
|---|---|---|
| Creatine | 35 g a day (0.5 g x 70) | 3 g a day, the intake GB’s authorised creatine claims are tied to |
| Caffeine | 350 mg a day (5 mg x 70) | About 3.5 cups of instant coffee at 100 mg a cup |
The NHS puts a cup of instant coffee at 100 mg and adds that filter coffee and coffee-shop coffee can contain more, so the cup count is a rough guide and a stronger brew gets there sooner. The figure sits on its pregnancy page, and the 200 mg daily limit there is a pregnancy limit, not a general one.
On the same arithmetic, one mug of instant with a 3 g serving is about a twelfth of the trial’s creatine and under a third of its caffeine. Whether the 1996 result holds at those amounts is something the abstract does not test, and this desk does not claim it either way.
Can you put creatine in hot coffee?
None of the three sources this desk read measures creatine in hot coffee, so this piece prints no breakdown rate or temperature. Of the pages ranking for the question, Landys Chemist’s advises warm rather than boiling coffee and, in the text read, names no study for it. That is advice, not a measurement.
What may a GB label say about creatine taken in coffee?
The register page, last updated 19 May 2026, says only authorised claims in it may be used in Great Britain. An earlier read of the register’s spreadsheet by this site, not repeated for this piece, found both authorised creatine claims, for burst exercise and for adults over 55 doing resistance training, were conditional on a daily intake of 3 g, as set out in the dose explainer. A further creatine claim, 004UKNHCC, was added as non-authorised on 27 February 2025.
None of this concerns the drink. The claim travels with the 3 g, not with the mug. What the authorised claims permit is covered in the effects post, and caffeine-led tubs in the pre-workout explainer.
Frequently asked questions
Does hot coffee destroy creatine?
None of the three sources this desk read measures creatine in hot coffee, so this piece gives no breakdown rate and no safe temperature. Landys Chemist’s page, one of those ranking for the question, advises warm rather than boiling coffee but names no study in the text read. Anyone who would rather not take the chance can let the coffee cool first, or take the creatine in water.
Does caffeine cancel out creatine?
In one 1996 trial of nine men, it did: creatine at 0.5 g per kg a day raised dynamic torque by 10-23%, and adding caffeine at 5 mg per kg a day removed that gain, although muscle phosphocreatine rose 4-6% either way. That is one small study at loading doses, and this desk read no later trial for this piece.
Can you mix creatine with coffee and protein powder?
None of the sources read for this piece tests that combination, and none forbids it. What the GB register ties to creatine is a daily intake of 3 g, on an earlier read of the register spreadsheet by this site, not repeated for this piece, and it says nothing about what the powder is stirred into. What a protein powder’s own label may claim is a separate question, with separate rules.
Creatine and coffee are both sold here as food, and food supplements are not medicines. Nothing above is medical advice; anyone pregnant or with a health condition should check with a doctor or pharmacist before adding either.