Green tea is made from unoxidized leaves and is one of the least processed types of tea.
Green tea as a beverage or dietary supplement is promoted for improving mental alertness, relieving digestive symptoms and headaches, and promoting weight loss.
It has been shown to improve blood flow and lower cholesterol.
A review of many studies found green tea helped prevent a range of heart-related issues, from high blood pressure to congestive heart failure.
Studies suggest that the best time to drink green tea is in the morning and before the workout session.