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This guide reviews the 1996 study and 2015 review cited in discussions of creatine with caffeine. Read their protocols and findings in context, separately from the authorised wording for creatine.
Where the “caffeine cancels creatine” idea came from
A 1996 study (Vandenberghe et al.) in 9 healthy male volunteers compared 6 days of placebo, creatine, and creatine plus caffeine (5 mg per kg per day). The authors reported that muscle phosphocreatine rose by 4 to 6% with both creatine conditions, that dynamic torque production was increased by creatine but was not changed by creatine plus caffeine, and that the ergogenic effect of creatine was completely eliminated by caffeine intake.
A 2015 review (Trexler and Smith-Ryan) described the research on concurrent creatine and caffeine supplementation as scarce, and reported that research has suggested that caffeine ingestion may blunt the ergogenic effect of creatine. The review noted that, while a pharmacokinetic interaction is unlikely, authors have suggested that the effect may be explained by opposing effects on muscle relaxation time or by gastrointestinal side effects from simultaneous consumption.
What the sources report
Taking creatine with pre-workout and coffee
Pre-workout labels state the amount of each ingredient per serving. Check the label for the amount of creatine and caffeine in your pre-workout.
If your pre-workout contains creatine, check the label for the amount per serving and add it to any separate creatine dose so you know your daily total. If it does not contain creatine, you can add your own scoop.
You can stir your creatine into your morning coffee, or take it in water right after. If that combination does not sit well in your stomach, you can space them out. For more on what to expect from a pre-workout, see our pre-workout guide.
A practical approach to combining them
Here is one way to handle it. Take creatine as set out in the box on this page, and treat your caffeine separately.
- Same drink: You can mix creatine into coffee or a caffeinated pre-workout. Check labels so you know your total creatine and caffeine per day.
- Spaced out: If you would rather, take creatine at one time and your coffee at another.
- If your stomach grumbles: Separate the two by an hour or so, or take creatine with a small meal.
- Mind your total caffeine: Add up coffee, tea, energy drinks, and pre-workout. It’s easy to stack higher than you intended when several sources land on the same morning.
For more on nailing the daily creatine habit, our companion guide on creatine timing covers when and how to take it without overthinking.
Caffeine cautions worth knowing
While creatine has a clear, authorised performance claim behind it, caffeine is a different story. In the EU, caffeine does not carry authorised health or performance claims, so we won’t tell you it boosts your training, burns anything, or improves your numbers. What we can offer is plain, sensible guidance about using it comfortably.
Caffeine is a stimulant, and individual sensitivity varies a lot. Some people can have an espresso after dinner and sleep fine; others feel a single afternoon coffee well into the night. If you train in the evening, be mindful that a caffeinated pre-workout can interfere with sleep. Common signs you’ve had too much include jitteriness, a racing heart, anxiety, and a churning stomach, easing back is the simple fix.
Caffeine isn’t appropriate for everyone. It’s not suitable for under-18s, and people who are pregnant or breastfeeding should be especially cautious with their intake. If you have a heart condition or any health concern, or you’re unsure how caffeine fits with your situation, speak to a doctor or pharmacist, this guide is general information, not medical advice. Creatine is not a stimulant.
The simple takeaway
This page relies on two sources, both linked above: a 1996 study (Vandenberghe et al.) and a 2015 review (Trexler and Smith-Ryan). The exact EU-authorised wording for creatine is shown in the box at the top of the page.
For the full picture on dosing, loading, and what creatine does, start with our creatine monohydrate guide hub. And when you’re ready to stock up, compare unflavoured creatine monohydrate prices — it mixes cleanly into coffee, water, or your pre-workout shaker. Stay calm. Stay strong. Stay fueled.
Authorised health claims used here are drawn from the European Commission’s official register. See the EU Register of nutrition and health claims made on foods.
Related: Browse the full creatine monohydrate guide hub, read about creatine timing and our pre-workout guide, or compare unflavoured creatine monohydrate prices.
Frequently asked questions
Can I take creatine with caffeine?
A 1996 study (Vandenberghe et al.) reported that the ergogenic effect of creatine was completely eliminated by caffeine intake, and a 2015 review (Trexler and Smith-Ryan) described the research on concurrent supplementation as scarce. Check pre-workout labels for the amount of creatine and caffeine per serving, and treat caffeine separately as a matter of personal sensitivity and total intake.
Does caffeine cancel creatine?
A 1996 study (Vandenberghe et al.) in 9 healthy male volunteers reported that the torque increase seen with creatine was not seen with creatine plus caffeine. A 2015 review (Trexler and Smith-Ryan) reported that research has suggested that caffeine ingestion may blunt the ergogenic effect of creatine, and noted that a pharmacokinetic interaction is unlikely.
Can I take creatine with my pre-workout?
Pre-workout labels state the amount of each ingredient per serving. If your pre-workout contains creatine, check the label for the amount so you know your daily total of creatine.
Can I mix creatine into my coffee?
You can. Creatine can be stirred into coffee, or taken in water right after. If the combination upsets your stomach, space them out by an hour or so.
How much caffeine is too much?
It varies a lot between people. Add up coffee, tea, energy drinks, and any pre-workout, since several sources can stack up quickly. Jitteriness, a racing heart, or disrupted sleep are signs to ease back. Caffeine isn't suitable for under-18s or during pregnancy.