Reduce the risk of cancer and other fatal diseases. Help prevent dental cavities. Green tea can be drunk, or it can be swallowed in the form of a tablet or capsule. An active ingredient of green tea used in the tablets or capsules is called epigallocatechin. Follow the directions printed on the product label.
Side effects are possible in people who have sensitive stomachs.
Heartburn, stomach irritation, loss of appetite, and diarrhea could result from drinking large amounts of green tea. If you are pregnant, trying to get pregnant, or breast-feeding, avoid drinking green tea because the caffeine it contains may be harmful to the baby. Green tea may worsen asthma. If you are taking this medicine, talk to your doctor before taking green tea. Some natural remedies have the same effects as prescription medicines.