Jankalyan Green coffee beans are berries of coffee plants. When undried and unroasted, these are rich in a powerful antioxidant called Chlorogenic Acid or CGA. Besides being anti-inflammatory and anti-free radical; CGA also has the ability to inhibit an enzyme called glucose-6-phosphate?that is responsible for the sugar metabolism in the liver, where sugars are metabolized into fat which is stored as surplus flabs in the body. When CGA inhibits this enzyme, the sugar metabolism slows down and the body starts to burn its fat stores to meet its energy needs, thereby losing weight.