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Green Tea

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What other names is Green Tea known by?

Camellia sinensis, Camellia thea, Camellia theifera, Constituant Polyphénolique de Thé Vert, CPTV, EGCG, Epigallo Catechin Gallate, Épigallo-Catéchine Gallate, Epigallocatechin Gallate, Extrait de Camellia Sinensis, Extrait de Thé, Extrait de Thé Vert, Extrait de Thea Sinensis, Green Sencha Tea, Green Tea Extract, Green Tea Polyphenolic Fraction, GTP, GTPF, Japanese Tea, Kunecatechins, Poly E, Polyphenon E, PTV, Té Verde, Tea, Tea Extract, Tea Green, Thé, Thé de Camillia, Thé Japonais, Thé Vert, Thé Vert de Yame, Thé Vert Sensha, Thea bohea, Thea sinensis, Thea viridis, Yame Green Tea, Yame Tea.

What is Green Tea?

Green tea is a product made from the Camellia sinensis plant. The fresh leaves are used to make medicine.

Is Green Tea effective?

There is some scientific evidence that drinking green tea can improve thinking skills, and might help lower cholesterol and other fats called triglycerides. Green tea consumption might also prevent or delay Parkinson's disease and possibly help to prevent cancer of the bladder, esophagus, and pancreas. But green tea does not seem to help prevent stomach cancer.

There isn't enough information to know if green tea is effective for the other conditions people use it for including: kidney disease, heart disease, kidney stones, tooth decay, and others.

Likely Effective for...

  • Genital warts. A specific green tea extract ointment (Veregen, Bradley Pharmaceuticals) is FDA-approved for treating genital warts.
  • Increasing mental alertness, due to the caffeine content of green tea.

Possibly Effective for...

  • Preventing dizziness upon standing up (orthostatic hypotension) in older people.
  • Preventing bladder, esophageal, ovarian, and pancreatic cancers.
  • Reducing the risk of Parkinson's disease.
  • Decreasing high levels of fat in the blood (hyperlipidemia).
  • Reducing abnormal development and growth of cells of the cervix (cervical dysplasia) caused by human papilloma virus (HPV) infection.
  • Low blood pressure. Green tea might help in elderly people who have low blood pressure after eating.

Possibly Ineffective for...

Insufficient Evidence to Rate Effectiveness for...

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

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