Caffeine May Reduce Exercise-Induced Muscle Soreness

If you’ve ever hit the gym hard and woken up the next day barely able to walk, you’re familiar with the deep muscle ache known as delayed onset muscle soreness—or just plain old workout pain. For many, that soreness can derail motivation and make returning to the gym a struggle. But could something as simple as your morning coffee help?

Yes—according to a small study, drinking the equivalent of roughly two cups of coffee (about 5 mg of caffeine per kg of body weight) can reduce muscle soreness by up to 48% during post-exercise strength tests, especially during high-intensity movement.

How Exercise Soreness Works

Muscle soreness after unfamiliar or intense exercise is common and usually appears within a day or two. This pain, known as delayed onset muscle soreness (DOMS), signals that your muscles are adapting to new demands. While uncomfortable, it’s a normal part of the muscle-building process. Traditional remedies include stretching, ice, massage, and rest—but some research now points to caffeine as another possible tool.

The Caffeine and Soreness Study

The study, published in the Journal of Pain and Symptom Management, involved nine female college students who were not regular caffeine users and did not follow a consistent exercise routine. After performing an exercise session that caused moderate muscle soreness, participants were given either caffeine or a placebo before doing additional leg exercises one or two days later.

Researchers found that those who consumed caffeine reported significantly less pain. During high-intensity leg exercises, muscle soreness dropped by 48%. For lower-intensity efforts, the reduction was smaller—about 26%. Lead researcher Victor Maridakis noted that reducing pain early on could help beginners transition more easily into regular training routines.

Who Benefits—and Who Doesn’t

The study highlights that the pain-reducing effect of caffeine is most noticeable in people who do not regularly consume it. Regular coffee drinkers may have developed a tolerance, meaning the same dose has a diminished effect on soreness relief. In other words, if you drink several cups of coffee a day, this benefit might not apply to you.

Other Considerations

While caffeine may ease the discomfort of sore muscles, experts caution that it also has diuretic effects, which could lead to dehydration—a factor that might worsen muscle recovery if not managed. Additionally, while pain relief is helpful, it doesn’t necessarily address the underlying causes of soreness. Stretching, cold therapy, and massage remain widely recommended methods for muscle recovery.

A spokesperson for the British Coffee Association also pointed out that other studies have shown caffeine can improve endurance and workout duration, making it a potential performance enhancer in multiple ways. Still, she advised waiting for further research before drawing broad conclusions based on this single small-scale study.

Frequently Asked Questions

How much coffee do I need to drink to reduce muscle soreness?

About two cups of coffee, providing roughly 5 mg of caffeine per kilogram of your body weight, can reduce muscle soreness by up to 48% during high-intensity exercise, according to the study. For lower intensity, the pain reduction was around 26%.

Does caffeine work for everyone after exercise?

Not necessarily. People who regularly consume caffeine may have built up a tolerance, making the pain-relieving effects less pronounced. The study found the strongest benefits in those not accustomed to regular caffeine intake.

What kind of exercise causes the soreness caffeine can help with?

The study focused on muscle soreness caused by high-intensity or unfamiliar strength-based exercises, particularly those leading to delayed onset muscle soreness (DOMS), which typically appears one to two days after training.

Are there side effects to using caffeine for soreness relief?

Caffeine is a diuretic, which can increase fluid loss and potentially affect hydration. Staying well-hydrated is important for muscle recovery, so balance caffeine intake with water consumption, especially after workouts.

Can I use caffeine instead of stretching or ice for sore muscles?

Caffeine may reduce the perception of soreness, but it doesn’t treat the underlying muscle stress. Experts still recommend complementary methods like stretching, ice application, or massage for full recovery.

Recommended FrontStreet Coffee Beans for Active Lifestyles

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