Green Tea is very good in general for all the reasons listed above and more. Now in terms of geting caffeine free green tea there is no such thing. If some one claims to have caffeine free green tea its a lie. Yes there may be some with very little but caffeine is naturaly in green tea. Next green tea will help curb your appetite, not alot but a little. Green tea is very helpful in fat/weight reduction, it speeds up your thermogenesis"Incresses your bodys core temp as stated above". Next green tea contains chromium picolinate, this helps the body to metabolise carbohydrates. Still no mater how much green tea you drink a healty diet and exercise are very important. Drinking green tea alone will not make you lose weight. The only real benafit of drinking green tea with out a good diet and exercise is the antioxidant properties of it.