Creatine and caffeine: can you take them together?

You have your morning coffee or your pre-workout, and you take creatine every day. At some point you read that caffeine might cancel creatine out. So are you wasting one of them?

The honest answer: no, for most people. You can take creatine and caffeine together. An old study raised a question, but the wider evidence says it is a minor issue in practice.

The short answer

• Can you take them together? Yes. Plenty of lifters do, and many pre-workouts contain both.
• Where the worry came from: one early study found caffeine seemed to blunt creatine during a loading phase with a high caffeine dose.
• What later reviews say: the evidence is mixed and the practical impact appears small.
• Simple plan: 3 to 5g of creatine a day at any time, and caffeine before training when you want the lift.

What the research says

The idea started with an older study in the 1990s. Participants who loaded creatine and also took a high dose of caffeine did not get the same strength benefit as those who took creatine alone. That result got repeated a lot, and it is where the "caffeine cancels creatine" idea comes from.

But one study is not the whole story. A review by Trexler and Smith-Ryan in 2015 looked at the wider research. Their summary was that taking both is very common, and while early data suggested caffeine might blunt creatine during loading, the overall evidence is mixed and the practical impact appears small.

A few reasons the early finding may not matter much for you:

• It involved a loading phase. Most people now just take a steady daily dose instead.
• It involved high caffeine. Not everyone takes that much every day.
• Other studies have not seen the same effect. Results have been inconsistent.

The creatine dose itself is well established. The ISSN position stand on creatine supports 3 to 5g a day, and timing is flexible. Creatine may support strength and power by topping up the energy stores your muscles use for short, hard efforts, and it builds up over weeks rather than working like a stimulant.

Practical timing

Creatine and caffeine do very different jobs, so they work on different timelines.

Creatine: any time, every day. It works by building up in your muscles over time. That means when you take it matters far less than taking it daily. Take it with breakfast, in a shake or in your pre. Our post on creatine before or after training covers timing in more depth.

Caffeine: before the session. Caffeine is a short-acting boost. Take it roughly 30 to 60 minutes before you train so it has kicked in by your first working set. Keep it away from the late afternoon if sleep is a problem.

If the old study worries you, there is an easy middle ground. Skip the loading phase and take a steady 3 to 5g a day, and keep your caffeine at a sensible level. That covers the scenario where the concern first came up.

Stomach comfort tips

The real issue for most people is not an interaction. It is the gut. Caffeine and a big scoop of creatine on an empty stomach can feel rough for some.

• Take creatine with food or a shake. Many people find it sits better that way.
• Drink enough water. Our guide to water with creatine explains how much.
• Split them if needed. Creatine with breakfast, caffeine before training.
• Use a micronised creatine. It mixes more smoothly and leaves less grit.
• Watch total caffeine. Coffee, energy drinks and pre-workout all add up. Most healthy adults are advised to stay under about 400mg a day from all sources.

Simple stacks

Three easy ways to set it up with products we stock.

For the tablet setup, GAT Sport Essentials Caffeine gives you 200mg of caffeine anhydrous per tablet, roughly two cups of coffee. It is handy if you want caffeine without the rest of a pre-workout. Cellucor's creatine is unflavoured, micronised and dosed at 5g a scoop, so it drops into your pre or coffee without changing the taste.

Adding creatine to your protein shake instead? That works fine too, and we cover mixing creatine with protein in its own post.

Where NZ Supps fits

We stock plain monohydrate in our creatine range, including the full line of Cellucor creatine. If you want your caffeine and pump in one scoop, our pre-workout collection covers every strength, and the Find Your Stack quiz can match a full stack to your training and caffeine tolerance.

FAQ

Can you take creatine and caffeine together? Yes, for most people. An early study raised the idea that caffeine might blunt creatine, but later reviews found the evidence mixed and the practical impact small. Plenty of lifters take both, often in the same pre-workout.

Can I mix creatine with coffee? You can. Creatine monohydrate is unflavoured and stirs into coffee, though it dissolves more easily in warm drinks than cold ones. If your stomach is sensitive, try taking them a little apart and see if that feels better.

Does caffeine cancel out creatine? There is no good evidence that normal caffeine intake cancels creatine out. The original concern came from a loading phase combined with high caffeine doses. If you want to play it safe, take a steady 3 to 5g a day instead of loading and keep caffeine sensible.

Is it OK if my pre-workout already has creatine? Yes. Just check the dose on the label. If it gives you less than 3 to 5g, top it up with plain creatine at another time of day so you reach your daily amount.

When should I take creatine if I have caffeine before training? Creatine works on a daily basis, so timing is flexible. Take caffeine 30 to 60 minutes before your session for the energy, and take creatine whenever you will remember it, whether that is with breakfast, a shake or your pre.