Stevia is a small perennial herb belonging to the Asteraceae family. It is commonly known as honey leaf plant, sweet chrysanthemum, sweet leaf stevia, sugar leaf, etc. Leaves are a good source of zero calorie sweeteners and the sweetness of this plant more than sugar, so it is used as a natural sweetener. Sweetness in the leaf is, due to a sweetening agent called "Stevioside". Stevia plant grows up to 2-4 feet height. Leaves are a good source of zero calorie sweeteners. It lowers blood sugar levels, hence this is considered to be a great plant for diabetic patients.