Green Tea Has 10 Proven Health Benefits

Green tea is widely regarded as one of the healthiest beverages on the planet.

It’s high in antioxidants, which have a variety of health benefits, including:

  • enhanced brain function
  • weight loss
  • defending against cancer
  • lowering the risk of cardiovascular disease

There could be even more health benefits.

Here are ten of the potential health benefits of green tea.

1. Contains beneficial bioactive compounds

Green tea is more than just a refreshing drink.

The green tea plant contains a variety of beneficial compounds that make their way into the final product.

Tea contains polyphenols, which are natural compounds with health benefits such as reducing inflammation and aiding in the fight against cancer.

Epigallocatechin-3-gallate is a catechin found in green tea (EGCG). Catechins are natural antioxidants that aid in the prevention of cell damage and provide additional benefits.

These substances have the ability to reduce the formation of free radicals in the body, thereby protecting cells and molecules from damage. These free radicals contribute to ageing and a variety of diseases.

One of the most potent compounds in green tea is EGCG. Its ability to help treat a variety of diseases has been studied. It appears to be one of the primary compounds responsible for green tea’s medicinal properties.

Green tea also contains trace amounts of minerals that can be beneficial to your health.

Choose a higher quality brand of green tea because some lower quality brands may contain high levels of fluoride.

Having said that, even if you choose a lower-quality brand, the advantages outweigh any risks.


Green tea is high in polyphenol antioxidants, including EGCG, a catechin. These antioxidants can have a variety of health benefits.

2. It has the potential to improve brain function.

Green tea may help improve brain function in addition to keeping you alert.

Caffeine, a well-known stimulant, is the main active ingredient.

It does not contain as much caffeine as coffee, but it contains enough to elicit a response without causing the jittery effects associated with excessive caffeine consumption.

Caffeine has an effect on the brain by inhibiting an inhibitory neurotransmitter known as adenosine. As a result, it increases neuronal firing and neurotransmitter concentrations such as dopamine and norepinephrine.

Caffeine has been shown in numerous studies to improve various aspects of brain function, including mood, vigilance, reaction time, and memory.

Caffeine, however, is not the only brain-boosting compound found in green tea. It also contains the amino acid L-theanine, which has the ability to cross the blood-brain barrier.

L-theanine stimulates the inhibitory neurotransmitter GABA, which has anti-anxiety properties. It also increases dopamine and alpha wave production in the brain.

Caffeine and L-theanine have been shown in studies to have synergistic effects. This means that combining the two can have particularly potent effects on brain function.

Green tea may provide a much milder and different type of buzz than coffee due to the L-theanine and the small amount of caffeine.

When compared to coffee, many people report having more stable energy and being much more productive when they drink green tea.


Green tea contains less caffeine than coffee, but it still has an effect. It also contains the amino acid L-theanine, which, when combined with caffeine, can improve brain function.

3 .Boosts fat burning

If you look at the ingredients list of any fat burning supplement, you will most likely find green tea.

This is due to research showing that green tea can increase fat burning and metabolic rate.

Green tea extract increased the number of calories burned by 4% in one study involving 10 healthy men. In another study involving 12 healthy men, green tea extract increased fat oxidation by 17% when compared to a placebo.

However, some studies on green tea have found no increase in metabolism, suggesting that the effects may vary depending on the individual and how the study was designed .

Caffeine may also improve physical performance by mobilising fatty acids from fat tissue and converting them to energy.

Caffeine may improve physical performance by 11–12%, according to two separate review studies.


Although not all studies agree, green tea may increase metabolic rate and fat burning in the short term.

4. Antioxidants may reduce the risk of certain cancers.

Cancer is caused by uncontrolled cell growth. It is one of the leading causes of death worldwide.

According to research, oxidative damage can cause chronic inflammation, which can lead to chronic diseases such as cancer. Antioxidants can aid in the prevention of oxidative damage .

Green tea contains a high concentration of antioxidants.

Green tea compounds have been linked to a lower risk of cancer in studies such as the ones below:

  • Breast cancer is a serious disease. According to a comprehensive review of observational studies, women who drank the most green tea had a 20–30% lower risk of developing breast cancer, one of the most common cancers in women.
  • Cancer of the prostate. According to one study, men who drank green tea had a lower risk of developing advanced prostate cancer.
  • Colorectal cancer is a type of cancer that affects the intestines An analysis of 29 studies found that those who drank green tea had a 42 percent lower risk of developing colorectal cancer.

Many observational studies show that people who drink green tea are less likely to develop various types of cancer, but more high-quality research is needed to confirm these findings.

Avoid adding milk to your tea to reap the most health benefits. According to some studies, it may reduce the antioxidant value of some teas .


Green tea contains potent antioxidants that may help prevent cancer. Several studies have found that people who drink green tea have a lower risk of developing various types of cancer.

5. Has the potential to protect the brain from ageing.

Green tea not only improves brain function in the short term, but it may also protect your brain as you age.

Alzheimer’s disease is the most common cause of dementia in older adults and a common neurodegenerative disease.

Parkinson’s disease is another common neurodegenerative disease that causes dopamine-producing neurons in the brain to die.

Several studies have found that the catechin compounds in green tea can have a variety of neuroprotective effects in test tubes and animal models, potentially lowering the risk of dementia.


Green tea’s bioactive compounds may have a variety of brain-protective effects. They may lower the risk of dementia, a common neurodegenerative disorder in the elderly.

6. May help with bad breath

Green tea catechins are also beneficial to oral health.

Catechins may be able to suppress the growth of bacteria in test tubes, potentially lowering the risk of infection.

Streptococcus mutans is a common oral bacterium. It contributes to the formation of plaque and is a major cause of cavities and tooth decay.

Green tea catechins have been shown in lab studies to inhibit the growth of oral bacteria, but there is no evidence that drinking green tea has the same effect.

Green tea, on the other hand, appears to have some evidence that it can help with bad breath (


Green tea catechins may inhibit the growth of bacteria in the mouth, lowering the risk of bad breath.

7. May aid in the prevention of type 2 diabetes

Type 2 diabetes has been on the rise in recent decades. Approximately one out of every ten Americans now suffers from the condition .

Type 2 diabetes is characterised by high blood sugar levels, which can be caused by insulin resistance or a lack of insulin production.

Green tea has been shown in studies to improve insulin sensitivity and lower blood sugar levels .

According to one study of Japanese people, those who drank the most green tea had a 42 percent lower risk of developing type 2 diabetes .

Tea drinkers had an 18% lower risk of diabetes, according to a review of 7 studies involving a total of 286,701 people .


According to some controlled studies, green tea may cause mild reductions in blood sugar levels. It may also reduce the risk of developing type 2 diabetes.

8. May aid in the prevention of cardiovascular disease

Cardiovascular diseases, such as heart disease and stroke, are the leading causes of death globally (45).

Green tea has been shown in studies to improve some of the main risk factors for these diseases, including total cholesterol and LDL (bad) cholesterol levels.

Green tea also increases blood antioxidant capacity, which protects LDL particles from oxidation, which is one step on the path to heart disease.

Given the beneficial effects on risk factors, it may come as no surprise that people who drink green tea have a 31% lower risk of dying from a cardiovascular disease.


Green tea has been shown to lower total and LDL (bad) cholesterol while also protecting LDL particles from oxidation. Green tea drinkers have a lower risk of cardiovascular disease, according to studies.

9. It is possible that it will assist you in losing weight.

Given that green tea can temporarily increase metabolic rate, it stands to reason that it could aid in weight loss.

Several studies indicate that green tea may aid in the reduction of body fat, particularly in the abdominal area .

One of these studies involved 240 obese people in a 12-week randomised controlled trial.

When compared to the control group, those in the green tea group had significant reductions in body fat percentage, body weight, waist circumference, and belly fat.

However, some studies do not show a statistically significant increase in weight loss with green tea, so more research is needed to confirm this effect.


According to some studies, drinking green tea may help you lose weight. It could be especially effective at reducing dangerous abdominal fat.

10. It may help you live a longer life.

Given that some of the compounds in green tea may help protect against cancer and heart disease, it stands to reason that it may help you live longer.

Over the course of 11 years, researchers studied 40,530 Japanese adults in one study. Those who consumed the most green tea — 5 or more cups per day — were significantly less likely to die during the study:

  • All-cause mortality is 23% lower in women and 12% lower in men.
  • Death from heart disease is 31% lower in women and 22% lower in men.
  • Stroke mortality is 42% lower in women and 35% lower in men.

Another study involving 14,001 older Japanese people discovered that those who drank the most green tea were 76% less likely to die over a 6-year period.


According to studies, people who drink green tea may live longer lives than those who do not.

In conclusion

Green tea may have a variety of health benefits.

Green tea may help you feel better, lose weight, and lower your risk of chronic diseases if you drink it on a regular basis.

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