Caffeine In Green Tea Vs Coffee: Which Is Better For Your Health?

Coffee typically contains more caffeine than green tea. Factors that affect the caffeine content of both green tea and coffee include brewing method, temperature, and the variety of coffee beans or tea leaves used. Both coffee and green tea are healthy when consumed in moderation. Drinking green tea in moderation can reduce your risk of certain cancers, stroke, depression, and diabetes.

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Caffeine In Green Tea Vs Coffee: Which Is Better For Your Health? - DarkHorseCoffeeCompany

Key Takeaways

  • Coffee contains more caffeine than green tea
  • Brewing method, time, and temperature affect caffeine content in both coffee and green tea
  • Both green tea and coffee are healthy in moderation
  • You can safely drink up to eight cups of green tea per day
  • Green tea can reduce your risk of certain cancers, stroke and diabetes
  • Drinking too much caffeine can cause headaches, anxiety, and insomnia
  • The FDA recommends a maximum intake of 400 mg of caffeine per day

Table Of Contents

How Much Caffeine In Green Tea Vs Coffee

Coffee has more caffeine than green tea. An 8 oz cup of coffee contains between 80 and 100 mg of caffeine on average, while an 8 oz cup of green tea contains between 30 and 50 mg of caffeine.

The amount of caffeine in a cup of green tea or a cup of coffee depends on a lot of factors including the brewing method you use and the ingredients in your cup. Caffeine content can be much higher - or lower - than these averages.

Switching from coffee to green tea could help you reduce the amount of caffeine you’re drinking on a daily basis. You could also try diluting your coffee or green tea with milk, using a weaker concentration, or switching to decaf.

Green Tea Caffeine Content

An average 8 oz cup of green tea contains between 30 mg and 50 mg of caffeine. Factors that affect the caffeine content in a cup of green tea include the variety of green tea, when the tea leaves were harvested, and the brewing method, temperature, and time.

Popular types of green tea include matcha, sencha, hojicha, and gyokuro. Of these, matcha is one of the most popular and it’s also the highest in caffeine content. If you want to maximize the caffeine content in a cup of green tea, choosing green tea made from matcha leaves is best.

But even amongst matcha tea leaves, some will be higher in caffeine than others. This is usually down to harvest time. Tea leaves harvested earlier in the harvest period will usually contain more caffeine than tea leaves harvested later, even from the same plant.

Finally, the brewing method, temperature, and time will also have a significant impact on the total caffeine content in a cup of green tea. Green teas brewed at higher temperatures will usually be higher in caffeine because more caffeine is extracted in hot water.

Longer steeping time will also result in higher caffeine content. However, it’s important to consider how this interacts with brewing temperature. Cold-brewed tea steeps for a long time, but because it’s brewed at room temperature the caffeine content in cold-brewed green tea is not so different from regular green tea.

A field of green tea leaves compared to coffee

Coffee Caffeine Content

An average 8 oz cup of coffee contains around 80 mg to 100 mg of caffeine, while a large coffee from a commercial brewery can contain up to 12 oz of coffee and 200 mg of caffeine. This is significantly more than the typical caffeine levels in an equivalent cup of green tea.

Factors that determine how much caffeine is in a cup of coffee include the type of coffee beans used, the strength of the coffee (or the ratio of coffee to water), and the brewing method, temperature, and time.

Robusta coffee beans contain almost twice as much caffeine as Arabica beans. Light roast beans are slightly higher in caffeine than dark roast coffee beans, and more caffeine is extracted from finely ground beans than coarse coffee beans during brewing.

The ratio of coffee to water will also affect the caffeine content of any type of coffee. Similarly, diluting coffee with other additives like milk or creamer will also reduce the caffeine content per cup.

The brewing method that you choose to use will also impact caffeine levels. Like green tea, coffee that’s brewed for longer or at higher temperatures is usually higher in caffeine. Cold brew is slightly higher in caffeine than regular coffee due to its extended brewing time, although its cooler brewing temperature keeps this difference relatively small.

Is Green Tea Caffeine Better For You Than Coffee?

Neither the caffeine in green tea or coffee is better for you. Both green tea and coffee are associated with health benefits when enjoyed in moderation.

Both coffee and green tea contain antioxidants, which help to combat free radicals in the body. Some of the antioxidants found in both drinks are known to have anticancer properties. Green tea may help to prevent cancers in the head, neck, breasts, and pancreas, while coffee may help to prevent cancers of the liver and skin.

Both coffee and green tea may also help to boost metabolism and reduce visceral fat. Visceral fat sits around the stomach and organs, and high levels of visceral fat are associated with a higher risk of developing heart disease and diabetes.

Green tea may also reduce your risk of stroke, depression, and diabetes, while coffee may reduce your risk of heart disease. However, it’s important to remember that certain additives - especially full-fat milk, cream, and sugar - can increase the caloric content of your coffee or green tea and mitigate some of these health benefits.

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Is It Okay To Drink Caffeinated Green Tea Everyday?

Yes, it’s okay to drink caffeinated green tea every day as long as you’re not exceeding your daily allowance of caffeine. 85% of adults in the US consume caffeine regularly, and studies show that consuming a moderate amount of caffeine every day is not bad for your health.

When enjoyed in moderation, green tea is good for you. Drinking up to eight cups of green tea a day is okay, assuming each cup contains around 8 oz of green tea or less. This will not exceed your daily recommended caffeine limit and could in fact reduce your risk of stroke, diabetes, and certain cancers.

However, if you’re pregnant, breastfeeding, or suffering from certain health conditions, your recommended daily allowance of caffeine might be lower. One cup of caffeinated green tea a day will usually be fine, but it’s a good idea to check with your doctor if you’re not sure

What are The Benefits Of Caffeine?

Caffeine offers lots of benefits to both cognitive and physical performance. There are also numerous health benefits associated with drinking a moderate amount of caffeine per day.

Low to moderate doses of caffeine, up to around 300 mg, have been shown to enhance cognition. Caffeine can have a positive impact on alertness, vigilance, reaction time, and even memory. It may help you to concentrate for longer periods, especially on time-consuming or tedious tasks.

Studies are mixed on the impact of caffeine on higher-order cognitive functions such as decision-making and emotional discernment. Some studies indicate that caffeine may support these functions, while others do not show any significant improvement.

Caffeine also impacts physical performance positively. Some studies indicate that caffeine may enhance endurance during exercise, as well as improve performance during strength training.

Caffeine may also be good for you in other ways. It promotes weight loss by suppressing the appetite and boosting the metabolism. It may also reduce your risk of developing both Alzheimer’s disease and Parkinson’s disease, as well as guarding against certain skin cancers and reducing your risk of developing kidney stones.

Other health benefits of drinking a moderate amount of caffeine every day include a lower risk of stroke, diabetes, and cataracts.

Pouring a cup of green tea or coffee

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Potential Side Effects Of Caffeine

Drinking too much caffeine on a daily basis also carries certain risks and side effects. If you exceed the recommended daily intake of caffeine, you may be more at risk of developing sleep disturbances, anxiety, and depression.

Caffeine also carries certain risks to specific groups of people. People with type-2 diabetes must drink caffeine carefully due to the blood sugar increase that occurs after consuming caffeine.

Caffeine is also particularly dangerous for pregnant women. Drinking more than 300 mg of caffeine a day during pregnancy can lead to an increased risk of miscarriage and delayed fetal growth. Drinking over 200 mg of caffeine per day before conception may also increase your risk of miscarriage.

There is little difference between the impact that caffeine has when consumed in green tea vs coffee. Green tea is lower in caffeine than coffee, so you can drink more cups of green tea than coffee in a single day without exceeding your daily recommended intake. However, the same caffeine limits apply no matter what source your caffeine is coming from.

Different compounds in green tea and coffee bestow distinct health benefits, but the side effects of the caffeine content in each drink are similar.

Is Green Tea Easier On The Stomach Than Coffee?

Green tea is easier on the stomach than coffee. It’s less acidic than coffee, which means it’s less likely to aggravate digestive conditions like acid reflux, indigestion, and GERD. The acids in coffee may be even more likely to upset your stomach when combined with caffeine, which is why caffeinated coffee is more linked with stomach complaints than decaf.

If you sometimes feel nauseous or bloated in the morning after drinking coffee, you could try switching your coffee to green tea. The lower acidity levels in green tea make it easier on the stomach, although caffeine alone may still cause stomach upset in some people.

Drinking coffee after eating could also ease some of the symptoms of acid reflux. Lining your stomach with food could mitigate some of the gastrointestinal side effects of coffee. Coffee is also known to aid digestion, so it’s always best enjoyed alongside a meal or a snack.

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What Are The Daily Caffeine Intake Recommendations

The FDA recommends a daily caffeine intake of no more than 400 mg per day. This is equivalent to around four or five cups of coffee, or up to eight cups of green tea per day.

It’s important to understand that people tolerate and break down caffeine at different rates. This means that one person may be able to comfortably drink more caffeine than another. Paying attention to your body is the best way to identify your personal caffeine limit.

If you find that drinking three to four cups of coffee a day (or less!) is causing problems sleeping, anxiety, restlessness, or depression, you may have to reduce your caffeine intake to manage some of these risks.

You may also be more sensitive to caffeine if you suffer from certain conditions or take some medications that interact with caffeine. Pregnant and breastfeeding women should not exceed 200 mg of caffeine per day.

Is It Okay To Drink Caffeinated Green Tea Or Coffee Every Day?

Yes, it’s okay to drink caffeinated green tea and coffee every day. It’s important to make sure you don’t exceed the daily intake limit of around 400 mg of caffeine per day, which is around eight cups of green tea or four to five cups of coffee.

When consumed in moderation, both green tea and coffee can offer health benefits. But it’s also important to look out for signs that you may be consuming too much caffeine. Headaches, anxiety, insomnia, and increased thirst could all be indications that you should reduce your caffeine intake.

A cup of green tea vs coffee caffeine

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Frequently Asked Questions About Caffeine In Green Tea Vs Coffee

Coffee contains more caffeine than green tea. An 8 oz serving of coffee contains around 80 to 100 mg of caffeine on average, while an 8 oz serving of green tea contains just 30 to 50 mg of caffeine. Brewing method, temperature, and variety of coffee or tea can impact the caffeine content of your drink.

Green tea is easier on the stomach than coffee. Green tea is less acidic than coffee, which means it’s easier to digest especially for people who suffer from acid reflux or indigestion. The EGCG present in green tea has anti-inflammatory properties and can even ease some symptoms of colitis and IBS.

Neither the caffeine in green tea or coffee is better for you. Green tea is slightly lower in caffeine than coffee, so it’s safe to drink more green tea than coffee in a day. Both green tea and coffee, when consumed in moderation, offer health benefits including anticancer properties.

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