Green tea's metabolism boosting effect is achieved by the inhibiting action of its most active ingredient epigallocatechin gallate (EGCG) on the activity of the enzymes that breakdown the neurotransmitter known as nor epinephrine making it last longer. The effect of nor epinephrine increases the process of thermo genesis - the generation of immense heat in the body. Thermo genesis is mainly considered to increase the body's energy expenditure as well as having a significant effect on body fat oxidation. Green teas have the ability to speed up the body's metabolic rate by up to 4%. This seemingly insignificant boost in metabolism can however with little or no effort than just drinking 2-4 cups daily help to burn stored body fats and reduce fat storage. Over time, this 4% boost in calorie burning can substantially increase an individual's overall fat burning capability. Green tea gives you energy by slowing the usage of carbohydrates in our body, meaning you can exercise much longer without feeling tired. Thus you can burn more calories. Fit Tea is a loose leaf tea that contains a powerful blend of Organic Green Tea, Oolong Wu Yi, Organic Rooibos, Ginger, Pomegranate, Guarana, Birch, Stevia, corn and Honey Powder. These have been used all over the world for thousands of years for their health benefits.