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Tea vs Coffee – Which Is The Better Caffeine Choice For Runners

A lot of athletes start their day with coffee or tea, especially before their exercise session. And there is a good reason for that. Studies over the years have shown that drinking caffeinated beverages before your workout can improve your endurance and focus for as little as 60 seconds to around 2 hours.

Drinking a caffeinated drink has also proven to be beneficial for weight loss. Although there are no studies that definitely show that caffeine consumption leads to permanent weight loss, scientists have some theories about why drinking a caffeinated beverage may help with fat and weight loss.

The First theory is that caffeine may reduce the feeling of hunger for a while, so you might end up not being hungry after drinking a cup. Please note that this works only with certain types of desires, and skipping meals is not healthy, especially for runners.

The second theory is that caffeine promotes more fat burning after the workout is over because it temporarily supports the process of breaking down the fat and boosting your metabolism. But keep in mind that this effect is usually not present in habitual caffeine consumers who drink more than 300mg of caffeine per day.

If you are a runner who is trying to shed some weight, running is one of the most effective weight loss exercises, but combining it with a small dose of caffeine may boost your progress just a little bit more.

The difference between coffee and tea

Both coffee and tea are very popular, not only with athletes who are trying to boost their performance but also around the world. Because they have influenced cultures throughout the years, we should probably take into consideration the health benefits of each of the two most popular hot beverages.

Although the histories of the two drinks are different, one thing they have in common is that wars have been waged for both of them.

We cannot really know about the whole history of tea because it is around 3000 years old.

There is a story of how tea became one of the most loved beverages. The emperor Shennong was the first to try this beverage after a spring of tea leaves accidentally fell into the water that was brewing. He loved it so much that he had to share it with everyone. Although this story is probably a myth because there is no evidence that this event actually took place, we are certain that everyone who tasted the tea for the first time was enchanted by its taste and smell.

Compared to tea, the history of coffee is relatively short. In the 1400s, the effects of coffee beans were first discovered by a Yemeni farmer who noticed that his cattle could not sleep after munching on the coffee beans. The next day he tried for himself, and he was the first to experience what is known today as ‘coffee buzz’.

Caffeine in coffee and caffeine in tea

When brewed, coffee has more caffeine than tea, but tea leaves actually have more caffeine than coffee beans.

If you have ever wondered about the amount of caffeine in your favorite beverage, there is around 70–140 mg of caffeine in a cup of coffee, while there is around 20mg of caffeine in black tea and around 35mg of caffeine in green tea.

But although Japanese green teas generally have less caffeine than coffee, sencha can have around one third to a half of that in coffee, while matcha is definitely an exception in the tea world because the whole leaf is ground to make the matcha tea, and as we already said, before brewing them, tea leaves have more caffeine than coffee beans.

Why is tea a better idea?

Sometimes having more caffeine is not the best option because it can actually be counterproductive. Lots of runners, either professionals or beginners, do not reach for a coffee or an energy drink in the morning. Instead, they sip a cup of soothing green tea. Although it has only half the caffeine, green tea is often a much better choice because the acid in coffee can have a negative effect on stomach balance and can lead to heartburn or stomach issues.

Another reason why tea is a much better option than coffee is because it offers almost three times more vitamins and minerals than coffee. Japanese green teas are filled with all sorts of vitamins. For example, 100 grams of sencha leaves can have about 250mg of vitamin C. However, that is 5mg of vitamin C per 100 ml of the beverage. Still, if you take into consideration that an average person needs 65–90 mg per day, that is quite a decent number.

Drink tea for better sleep

We all know about the effect caffeine can have on our sleeping patterns. Also, too much caffeine can cause anxiety and irritability, which can even lead to higher stress levels. But it also depends on our genetics. Some people feel the effects of coffee when they consume 300mg of caffeine; others feel them after 1000mg.

But coffee consumption can lead to insomnia, and that is why it is not recommended to drink it later in the day.

Sleep is an essential activity for our health, especially if you are an athlete. When you are sleeping, your body is still using that time to regulate your health and the essential functions you need for daily life. So drinking tea is a better option if you are one of the people who are quite sensitive to caffeine but still want to boost your workout performance and speed up your runs.

Drink tea for better digestion

Did you ever notice how a cup of coffee can get our bowels moving? Well, that is because coffee has a laxative effect; more interestingly, decaffeinated coffee has a similar outcome.

But it seems caffeine itself promotes bowel movements, too, because it stimulates the muscles you use to move food through the digestive tract.

Why is tea then better than coffee? Well, because coffee has a laxative effect, it may lead to diarrhea or stomach ulcers.

Since coffee can obviously have a damaging effect on the digestive system, drinking tea seems like a better option for healthy digestion.

About The Author

Mackenzie Jervis

Mackenzie Jervis
Researcher at WalkJogRun

Machkenzie Jervis is a writer and traveler.
She's visited 65 countries solo, 12 with her baby. She blogs about family travel while writing novels and binge-watching British TV.
Follow her on FacebookTwitter, or Instagram.

FAQs about Tea vs Coffee for Runners

Should runners drink tea or coffee before a run — which works better?

Different effects, neither universally better. Coffee delivers a sharper acute caffeine spike — useful for short, intense efforts where you want maximum power output for 30-60 minutes. Green tea delivers a flatter, longer-duration alertness from the L-theanine + caffeine combination — better for endurance runs over 60+ minutes where sustained focus matters more than peak intensity.

For interval workouts, sprint sessions, and races under 10K, coffee's acute spike profile is probably better. For long runs (10K+), trail running, and ultra-distance events, green tea's sustained energy curve usually serves better. Many runners use both — coffee for intervals, tea for long runs.

The bigger factor is personal tolerance. If coffee gives you stomach issues during runs (a common problem), green tea is dramatically gentler on the GI tract. If green tea doesn't give you enough caffeine for your effort level, coffee provides more concentrated dose. Match the tool to your body's response.

Does green tea actually improve endurance performance, or is it just hydration?

More than just hydration. Multiple studies show that green tea catechins (especially EGCG) modestly improve fat oxidation during sustained exercise — meaning the body burns fat more efficiently and spares glycogen for later in the run. The effect is small (about 2-4% improvement in fat utilization) but meaningful for endurance athletes where small efficiencies compound over hours.

L-theanine adds the focus benefit. Long runs require sustained mental engagement — pace management, breathing focus, form awareness — and the calm-focus state from L-theanine supports that better than coffee's jitterier alertness. The matcha (抹茶) form delivers the highest dose for pre-long-run drinking.

Total impact: not transformative but real. Daily green tea drinkers who run regularly show modestly better endurance metrics than equivalent runners who don't drink tea. Effect size is small enough that you wouldn't notice in any single workout but accumulates over months.

Should I drink tea during a run, or only before?

Before, mostly. During-run hydration should be water or sports drink, not tea — tea's caffeine and tannins on a stressed GI system can cause cramping or discomfort. The brewed tea also doesn't deliver carbohydrates that your body needs for sustained endurance.

Pre-run timing: 30-60 minutes before, depending on your sensitivity. Caffeine peaks around 30-60 minutes after consumption, so pre-run timing puts the peak right around mile 1-3 of a typical run. Earlier consumption (90+ minutes pre-run) means the peak hits and starts declining before you've finished, which loses the benefit window.

Post-run tea is great for recovery — the antioxidants help with exercise-induced oxidative stress, and warm tea contributes to rehydration. Hojicha post-long-run is especially nice because the lower caffeine doesn't disrupt afternoon sleep if you ran in the morning.

Does cold-brewed green tea work better for runners than hot brewed?

Practically, yes. Cold-brewed green tea is easier to drink in volume during summer training (no waiting for tea to cool), packs into running bottles cleanly, and has a slightly different chemistry — more L-theanine relative to catechins, which means more sustained focus and less acute caffeine spike. For long runs in hot weather, cold brew is the right tool.

Hot brew has slightly more catechin extraction, so for the antioxidant load, hot is marginally better. For the actual ergogenic (performance-enhancing) effect during a run, cold brew is at least as effective and easier to consume.

Many endurance runners I know brew a large pitcher of cold-brew sencha on Sunday morning that lasts the whole training week. One pre-run cup, sometimes a second post-run cup. Becomes part of the training routine.

How to Cold Brew Japanese Green Tea - The Expert Advice
How to Cold Brew Japanese Green Tea - The Expert Advice

Are there any risks for runners specifically from drinking green tea?

Two minor ones. First, dehydration if you're not paying attention — green tea is mildly diuretic, and drinking it without supplementing water during heavy training weeks can contribute to chronic mild dehydration. Match your tea intake with extra water, especially in summer training.

Second, iron status. Endurance running already increases iron needs (foot-strike hemolysis, GI losses), and tea catechins reduce iron absorption from food. For competitive runners with low or borderline iron status, this can compound. The fix is timing — drink tea between meals, not with iron-rich foods, and consider iron supplementation timing if you're prescribed any.

Caffeine sensitivity matters too. If you're highly caffeine-sensitive and racing at high effort levels, even green tea's modest caffeine can elevate heart rate enough to affect race-day performance. Pre-race testing during training (drink the same tea before similar workouts to see how it lands) prevents race-day surprises.

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