The main ingredient is Green Tea which is a metabolic drink. Green tea helps in speeding human metabolism and when the metabolism speed up, the calorie burning process also speeds up. In green tea there is a natural chemical called Catchin which acts directly by increasing the body's rate of thermogenesis and helps in speeding the metabolism. Thermogenesis is the process with the help of which body formulates heat, increase metabolism rate and burns calories. Green tea is very good while dieting. Green tea not only helps in losing weight it also helps in controlling the cholesterol levels. Anti-oxidants present in the green tea helps in controlling the cholesterol. Green tea is also effective for heart patients; it helps to avoid strokes and heart attack as well.