Stevia is perhaps unique among food ingredients because it's most valued for what it doesn't do. It doesn't add calories. Unlike other sugar substitutes, stevia is derived from a plant called by stevia rebaudiana bertoni, totally natural, 0 calorie, sugar like, it's the prefect sweetener to replace sugar.Stevia 90% is all natural sweetener, white to light yellow powder, odorless or having a slight characteristic odor, approximately 280 times sweeter than sucrose. It contributes zero calories & zero carbohydrates to finished products. It is derived from Stevia leaves, powder in form.