Updated at: 25-08-2023 - By: John Lau

Have you ever experienced discomfort or diarrhea after sipping on green tea? Studies suggest that, while beneficial to health, green tea can potentially cause some unfortunate side effects.

This blog post will demystify the link between drinking green tea and experiencing digestive issues like diarrhea.

Keep reading to understand why your favorite brew might be causing upset stomachs, and how to enjoy it without any worry.

Understanding the Possible Side Effects of Green Tea

Can Drinking Green Tea Cause Diarrhea

Diarrhea as a potential side effect

Green tea can indeed trigger diarrhea in some individuals. This happens due to the presence of certain natural substances within green tea, such as caffeine and tannins. These compounds act as a laxative by speeding up bowel movements.

In addition, they stimulate the muscles in your digestive system causing more frequent visits to the bathroom. Furthermore, excessive consumption exacerbates this side effect, leading to loose stools or even watery stools.

It’s also vital to consider individual sensitivity; what affects one person may not affect another similarly.

Other side effects of consuming green tea

Consuming green tea can have several side effects, including:

  • Upset stomach
  • Nausea and vomiting
  • Difficulty sleeping
  • Abdominal discomfort

Factors That May Contribute to Diarrhea from Green Tea

Caffeine content

Green tea contains caffeine, which is a stimulant that can affect the digestive system. The caffeine content in green tea may contribute to diarrhea in some individuals. Consuming large amounts of caffeine can increase bowel movements and lead to watery stools.

If you experience abdominal discomfort or notice changes in your stool consistency after drinking green tea, the caffeine content could be a potential factor. It is important to be mindful of your caffeine intake and consider switching to decaffeinated or low-caffeine options if you are prone to experiencing digestive issues.

Can Drinking Green Tea Cause Diarrhea 2


Tannins are natural compounds found in green tea that contribute to its flavor, but they can also have an impact on your digestive system. Some individuals may experience diarrhea after consuming green tea due to the tannin content.

These compounds can irritate the lining of the intestines and lead to loose stools. If you find that green tea is causing discomfort or bowel disturbances, it may be helpful to reduce your consumption or try a low-tannin alternative.

Individual sensitivity

Individual sensitivity plays a significant role in the potential side effects of drinking green tea, including diarrhea. While some people may be able to enjoy green tea without any issues, others may experience digestive discomfort or loose stools after consuming it.

This sensitivity can vary from person to person and is influenced by factors such as overall health, tolerance to caffeine, and personal reaction to the compounds found in green tea.

Therefore, it’s important for individuals to listen to their bodies and make adjustments accordingly when incorporating green tea into their routine.

How to Reduce the Risk of Diarrhea from Green Tea

Moderating consumption

To reduce the risk of experiencing diarrhea from drinking green tea, it is important to moderate your consumption. By drinking green tea in moderation, you can potentially avoid digestive issues such as loose stools and abdominal discomfort.

Limiting your intake of green tea can help ensure that you do not consume excessive amounts of caffeine, which may contribute to diarrhea. You may also consider opting for decaffeinated or low-caffeine options if you are particularly sensitive to caffeine.

Additionally, pairing green tea with food can help mitigate any potential stomach upset. Overall, by moderating your consumption of green tea and being mindful of your body’s reaction, you can enjoy its potential health benefits without experiencing unwanted side effects.

Choosing decaffeinated or low-caffeine options

To reduce the risk of experiencing diarrhea from drinking green tea, you can opt for decaffeinated or low-caffeine options. These alternatives have lower levels of caffeine, which is often associated with digestive issues.

By choosing decaffeinated or low-caffeine green tea, you can still enjoy its potential health benefits without the potential side effect of diarrhea.

Pairing green tea with food

Pairing green tea with food can enhance your overall experience and also help minimize the potential side effects such as diarrhea. By enjoying green tea alongside a meal, the food acts as a buffer, reducing the direct impact of the tea on your stomach.

This is especially beneficial for those who are more sensitive to caffeine or tannins found in green tea. Additionally, pairing green tea with food can help slow down its absorption into the bloodstream, resulting in a more gradual release of energy and minimizing any digestive discomfort that may arise from consuming green tea alone.

So next time you brew yourself a cup of green tea, consider enjoying it with a healthy snack or meal to maximize both flavor and digestion!

Other Benefits and Considerations of Drinking Green Tea

Potential health benefits

Benefits and Considerations of Drinking Green Tea

Drinking green tea may offer several potential health benefits. Research suggests that the antioxidants found in green tea can help protect against certain types of cancer, such as breast, prostate, and colorectal cancer.

Green tea is also believed to have anti-inflammatory properties that could reduce the risk of chronic diseases like heart disease and diabetes. Additionally, some studies have shown that drinking green tea may help boost metabolism and aid in weight loss efforts.

While more research is needed to fully understand these benefits, incorporating green tea into a balanced diet may contribute to improved overall health.

Another possible benefit of consuming green tea is its impact on brain function. Some studies suggest that the caffeine and other compounds present in green tea can enhance cognitive function and improve mental alertness.

This could potentially lead to better concentration and memory retention.

Consultation with a healthcare professional

Before making any significant changes to your diet or lifestyle, it is always wise to consult with a healthcare professional. This holds true when it comes to drinking green tea as well.

Your doctor can provide personalized advice based on your specific health conditions and medications that you may be taking. They will be able to guide you on whether drinking green tea is safe for you and help address any concerns you may have about potential side effects such as diarrhea.

Remember, everyone’s body reacts differently, so what works for one person may not work for another. Seeking medical guidance ensures that you are making informed decisions about your health.

It’s essential to remember that this article provides general information, but the expertise of a healthcare professional is invaluable in understanding how green tea might affect you individually.


Drinking green tea may cause diarrhea, but there are ways to reduce the risk. Factors such as caffeine content and individual sensitivity can contribute to this side effect.

Moderating consumption, choosing decaffeinated options, or pairing green tea with food can help minimize the chances of experiencing diarrhea.

It’s important to be aware of these possibilities while enjoying the potential health benefits of green tea.