It is rich in antioxidant which helps to reduce the risk of cancer. The antioxidant present in green tea protects cells from damage, reduce the risk of heart attacks, help lower cholesterol level and boost immune system. It can aid in weight loss by improving your metabolism, which in turn allows your body to burn fat faster. In fact green tea for diabetes is known to be very beneficial as it stimulates the production of insulin and also triggers the functioning of the pancreas. Green tea for diabetes is also highly recommended as it helps in both normalizing as well as regulating the levels of blood sugar in the body. The vitamin C in green tea helps to treat the common cold.