Creatine and Caffeine: Can You Take Them Together?
An old study raised doubts about mixing creatine and caffeine. Here's what newer research says.
Creatine Supplements
1. Where the Concern Came From
A 1996 study found that high doses of caffeine taken alongside creatine loading reduced creatine's performance benefit. Later studies have been mixed, and many found no meaningful interference, especially with moderate caffeine intake and normal creatine doses.
2. What We Know Now
- Many people successfully combine creatine with coffee or pre-workout
- Moderate caffeine (about 3 to 6 mg/kg or less) appears unlikely to cancel creatine's benefits
- The combination may cause stomach upset in some people
- Separating them by a few hours is an easy precaution if you're concerned
3. Practical Tips
| Situation | Suggestion |
|---|---|
| You drink morning coffee | Take creatine with it or later in the day |
| Your pre-workout contains creatine | Check the dose; add more to reach 3 - 5 g if needed |
| You get stomach upset | Separate creatine and caffeine and take creatine with food |
4. Creatine in Pre-Workout
Many pre-workout supplements contain both caffeine and creatine. Check the creatine dose, which is often less than 3 grams. Add extra creatine if needed to reach 3 to 5 grams per day.
5. Tips to Avoid Stomach Upset
Take creatine with food, drink plenty of water and consider separating creatine and caffeine by a few hours if you notice digestive discomfort.
6. Our Recommendation
Combine creatine with coffee or pre-workout freely unless you notice stomach issues.
7. What Research Says Today
Most newer studies find that moderate caffeine doesn't block creatine's benefits for strength and power. Some individuals may still experience stomach discomfort when combining them.
8. How Caffeine and Creatine Work Differently
Caffeine acts on the nervous system, increasing alertness and reducing perceived effort within 30 to 60 minutes of taking it. Creatine works in muscles, increasing phosphocreatine stores over weeks to improve high-intensity performance. Because they work through different mechanisms, many athletes benefit from both.
The early concern that caffeine might cancel creatine's effects came from a small study with high caffeine doses during loading. Later research hasn't consistently confirmed this.
9. Best Way to Combine Them
A practical approach is to take creatine daily at any time and use caffeine before workouts. If you notice digestive issues, take creatine with a meal and caffeine separately. Keep total caffeine moderate, ideally under about 400 mg a day for healthy adults.
10. Final Tip
If coffee and creatine together upset your stomach, simply move creatine to lunch or dinner with food.
Final Thoughts
For most people, creatine and caffeine can be taken together without losing the benefits of either. If you notice stomach upset, split them up by a few hours. Consistent daily creatine matters more than what you mix it with. This article is for general information only and isn't medical advice. Talk to a doctor or registered dietitian before starting a supplement, especially if you're pregnant or nursing, take medication or have a health condition.
Frequently Asked Questions
- Can I mix creatine with coffee?
- Yes. Most research suggests moderate caffeine doesn't cancel creatine's effects.
- Can I take creatine with pre-workout?
- Yes. Many pre-workouts already include creatine, though often at low doses.
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