Remarkable Benefits of Green Tea

by admin_gothkm8c

Green tea is made up from camellia sinensis plant. Its dried leaves and leaf buds are used to make several different teas, including black and oolong tea. Green tea is prepared by steaming and pan-frying the camellia leaves and then drying them. Green tea is not fermented, it is able to maintain important molecules, which are polyphenols. Green tea also contain caffeine.

People commonly use a US FDA-approved prescription products containing green tea for genital warts (a specific green tea extract). As a drink or supplement, green tea is sometime used for high cholesterol, high blood pressure, may reduce risk of heart diseases and to prevent ovarian cancer.

“It’s the healthiest thing I can think of to drink” says Christopher Ochsner, PhD. He is a research scientist in nutrition at the Icahn School of Medicine at Mount Sinai Hospital.

There is no food that protect us from diseases. Our health totally depend on our lifestyle and genes. So, drinking green tea all day, there is also need to take care of ourself in many other ways, like quit smoking, eat healthy diet and being active.

Green tea and Black tea composition table:


Green Tea

Black Tea


2 calories in 1 mug. 2 calories in 1 cup.
Protein 15



26 26
Amino acids 4



7 7
Lipids 7



2 2
Minerals 5


Phenolic Compounds

30 5
Oxidized Phenolic




Benefits of Green Tea

Green tea is packed full with health promoting compounds. Green tea is traditional Chinese and Indian medicine to control several diseases, heal wounds, improve digestion, help to lower risk of heart and mental health, and regulate body temperature.

1. Cancer Prevention:

Early studies has show that green tea contain polyphenol which play a role in reducing the risk of cancer. Several  population base studies also show that both black and green tea help to protect against cancer. Researchers also tell that polyphenols kill cancerous cells and stop them from growing. Predominant polyphenols in green tea__ EGCG, EGC, ECG and EC and the theaflavins in black tea have anti-oxidant activity. These chemicals escape free radicals and may protect cells from DNA damage caused by reactive oxygen spices. Human studies have not shown consistent evidence that drinking green tea reduces the certain cancers.

A 2020 database review shows that experimental studies tells that human produce inconsistent results as well as benefits of drinking green tea may lower the risk of cancers.

A 2018 review in vitro, in vivo, and human studies demonstrated the potential benefits of polyphenols in chemoprevention of UVB-induced skin cancer. Polyphenols in green tea may have a role in protecting the skin form UVB-radiations.

Animals and cell tube studies shows some positive impact on certain cancers;

  • Breast
  • Bladder
  • Ovarian
  • Bowl (colorectal)
  • Throat (esophageal)
  • Lungs
  • Prostrate
  • Skin
  • Stomach

Cancer rate low in countries such as Japan, where people drink green tea regularly.

2. Weight Loss:

Green tea can help you lose fat, especially harmful abdominal fat. The effects of green tea are relatively modest. Green tea can increases fat burning, which lose weight. A several studies show that green tea contain catechin and caffeine which may have a role in increasing energy metabolism, which may leads to lose weight.

Caffeine is well-known stimulant that has been found to increase fat burning and improve exercise performance.

Studies show that drinking 1 cup of green tea increases the amount of anti-oxidants in our bloodstreams.

Green tea also contain a type of flavonoids called catechins, which is an anti-oxidant. Catechin breakdown the excess fat.

3. Inflammatory Skin Conditions:

Green tea has anti-inflammatory properties. A human studies and both cellular and animal experiments found that green tea contain major component epigallocatechin-3-gallate (EGCG), have anti-inflammatory effect.

4. Heart Healthy:

A Japanese adult found that drank 5 cups of green tea a day may lower the risk of 26% of risk of death from heart attack and 16% lower the risk of death from all causes than people who drank 1 cup of tea a day. Consumption of green tea was associated with favorable outcomes regarding the risk of cardiovascular disease and ischemic diseases.

2017 and 2019 review studies shows that polyphenol in green tea may lower blood pressure, decreases inflammation and improve epithelial functions, which can reduce heart disease.

5. Lower Cholesterol:

A 2011 review show that consuming green tea reduce total low density lipoprotein cholesterol.

A meta-analysis from American Journal of Clinical Nutrition suggests that green tea significantly reduce total cholesterol, including “LDL” or “Bad Cholesterol” in the blood.

6. Stroke Risk:

Researchers found that more green tea a person drank, the more it reduced the risk of suffering a stroke.

An American Heart Association (AHA) study stated that drinking green tea daily may associated with a small and positive change in stroke.

7. Type 2 Diabetes:

There are indications that green tea can reduce the risk of developing diabetes. Green tea contain zero sugar and calorie free.

Although there is no cure for type 2 diabetes, but it can be reduce. There is a correlation between green tea consumption and decreased fasting glucose and fasting insulin levels.

8. Memory:

Some researches show that green tea can enhance a person’s working memory and cognitive functions. Green tea extract boost your brain functions. Benefits come from caffeine and L-theanine, which boost memory and attention.

Studies show that drinking green tea can reduce cognitive impairment and Alzheimer’s disease.

Other benefits:

  • Prevent dental cavities
  • Reduce stress
  • Reduce chronic fatigue
  • Treat skin conditions
  • Improve arthritis

Disadvantages of Drinking Green Tea:

Green tea is likely safe for adults but for long term high doses may be not safe. It can cause side effects due to caffeine. Side effects range from mild to serious which are;

  1. Headache
  2. Nervousness
  3. Sleep problems
  4. Vomiting
  5. Diarrhea
  6. Irritability
  7. Irregular heart burn
  8. Tremor
  9. Dizziness
  10. Ringing in ear
  11. Convulsions and Confusions
  12. Liver disease
  13. Anemia and Iron deficiency
  14. Stomach problems


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