Green tea extract is healthy to drink. It has been published that green tea extract helps to prevent esophagus cancer. Research also shows that green tea extract helps to reduce cholesterol. There are many more advantages to drinking green tea extract.

Green tea extract can be found in foods such as bread, obviously the drink, cakes, and even in meats. Sometimes in resturaunts they will serve a green tea extract meat.

yes

no it does not.

one answer is to extract the flavor of a substance by placing it in a hot liquid.

For example tea bag put in hot water to make tea. The flavor escapes into the water.