Nutritional difference in Green Tea comes from the growing environment and product manufacturing process. The following list contains Japanese green teas. Chinese green tea, such as Gun Powder, is not included. Generally speaking, Sencha, least processed green tea, has the highest amount of Catechin antioxidants among all the green teas, including Chinese green tea.
Other nutritions naturally occur in green tea leaf: Fiber, B-Carotene, Chlorophyll, Flavonoid, L-Theanine, Vitamin U, Saponin, Selenium, Calcium, Fluoride, Iron, Magnesium, Zinc