Question: what nutritional value does green tea have?
Answer: Catechins. Catechins are a type of polyphenol and are the main astringency component in green tea, long known as tannins. ...  Caffeine. Drinking tea when tired from work or study can make a person feel refreshed. ...  Amino Acid (Theanine) ...  Vitamins. ...  Vitamin B2. ...  Vitamin C. ...  Folic Acid. ...  β-carotene.