Ten Benefits of Green Tea Based on Evidence

Green tea may improve energy, help with weight control and memory, and provide modest cancer protection.

One of the world's healthiest drinks, green tea is said to have numerous possible health advantages.

Here are ten potential health advantages of green tea.

1. Contains antioxidant chemicals derived from plants

One kind of polyphenol found in green tea is called a catechin. Catechins are antioxidants that offer additional health advantages and aid in preventing cell damage.

Epigallocatechin-3-gallate (EGCG), the most well-known and prevalent catechin in green tea, may help improve a number of health issues or disease signs, according to study.

2. Could enhance cognitive performance

Because green tea contains components like caffeine and L-theanine, research indicates that drinking green tea may improve mood, brain function, and cognition.

Additionally, a 2020 study found that middle-aged and older persons who drink green tea have a 64% reduced risk of cognitive impairment.

Nevertheless, further research on humans is required to fully understand this effect.

3. May aid in the burning of fat

According to a 2022 review, resistance or aerobic exercise increases the beneficial effects of green tea on metabolism.

According to the National Institutes of Health Office of Dietary Supplements , green tea may help your body break down fat, but its total impact on weight loss is probably going to be minimal.

4. May reduce the chance of some types of cancer

Research has connected drinking green tea with a lower risk of getting several types of cancer, such as lung cancer or ovarian cancer, although the data is conflicting and contradictory.

According to a 2020 study, scientists were unable to draw any conclusions about the consistent effects of green tea on the overall risk of cancer, despite experimental research showing a minor positive effect. More excellent research is required.

5. Could prevent aging of the brain

A 2020 study found that in individuals without known cognitive problems, green tea was associated with decreased levels of certain markers connected to Alzheimer's disease. It could be caused by substances like L-theanine and EGCG.

However, a 2023 study found that consuming 13 cups or more of tea daily (of all varieties) may raise the risk of Alzheimer's. There is a dearth of clinical data regarding the precise effects of green tea on the human brain.

6. Might improve dental health

Drinking green tea or utilizing green tea extract may be associated with improved dental health, according to a 2021 review of studies.

However, human participants were not used in the majority of this research. Although the results are encouraging, additional human clinical study is required.

7. Could aid in blood sugar regulation

According to a 2020 assessment, green tea may help lower blood sugar during fasting in the short term, but it doesn't appear to have any long-term effects on insulin or blood sugar.

Additionally, a 2021 study on Chinese adults found that everyday drinkers had a 10% decreased risk of dying from type 2 diabetes.

The results are ambiguous because other evaluations did not discover any effects on any markers of blood sugar management in individuals with type 2 diabetes.

8. May aid in the prevention of heart disease

Regular consumption of green tea may reduce a number of heart disease risk factors, including blood pressure and cholesterol, according to a 2022 study.

Nevertheless, long-term, reliable evidence from human clinical studies that may demonstrate cause and effect is still lacking.

9. Could aid in weight loss

Green tea may aid in weight loss, according to several research.

Drinking four or more cups of green tea a day was associated with a 44% decreased risk of abdominal obesity, according to a 2022 study, however the impact was only significant among women.

However, your hunger and fullness hormones, which help control your appetite, do not appear to be affected by green tea.

Additionally, there is conflicting data regarding green tea's overall ability to help people lose weight.

10. Could prolong your life

You might live longer if you drink green tea because it contains ingredients that protect against heart disease and cancer.

According to a Japanese study, people who drank five cups or more a day were less likely to die from all causes than people who drank one cup or less.

According to a 2021 study, even among those who have had heart attacks, consuming seven cups of green tea per day reduced the chance of death from all causes by 62%.

Frequently asked questions

What would happen if I drank green tea every day?

As part of a balanced diet, the majority of people may consume green tea on a daily basis. Three to five cups (24 to 40 ounces) a day appear to have health benefits, despite conflicting research.


What are the health benefits of green tea?

There are numerous advantages of drinking green tea. It contains a lot of antioxidants, which can support your general health and prevent or treat cellular damage. This includes lowering several inflammatory markers, which may lower the chance of cognitive deterioration. It might even have some characteristics that help prevent heart disease and cancer.

What is the recommended daily amount of green tea?

One to three cups of green tea each day may be beneficial to your health. Remember that unless it has been decaffeinated, the majority of green tea includes caffeine, therefore consuming more than ten cups per day is not recommended.


Is abdominal fat reduced by green tea?

Drinking green tea may help reduce body fat, notably in the abdomen, according to some evidence based on study. To demonstrate a cause-and-effect relationship, however, more carefully regulated human research are required.

The bottom line

There are several potential health advantages of green tea.

You might want to think about incorporating green tea into your daily routine in a way that suits your tastes and personal health objectives.