Green tea (Camellia sinensis L.) is considered a beneficially against obesity and extra pounds. The green tea is also rich in precious elements for health, such as polyphenols and catechins, which are substances with high antioxidant and draining effect. Catechins contained in green tea promote the elimination of liquids and combined with theine stimulates the metabolism. The regular intake of green tea stimulates the body heat and increases energy expenditure by burning fat faster. The slimming activity is another characteristic of Green Tea: the molecules stimulate lipolysis and promote weight loss by mobilizing fat localized adipose tissue and their oxidation for energy. High extract titration in EGCG (epigallocatechin gallate) is very important as it stimulates the pancreas to produce more insulin, the hormone deputy glucose disposal in the blood.