Stevia is a sweetener extracted from stevia Rebaudiana, a plant native to south America Known For its Sweetening Properties. Stevia is a powerful sweetener with a low carbohydrate content and has less effect in blood glucose than others, which makes it very convenient for those people following low-carbohydrate diets. Chocolates Torras has been one of the first European companies to use it to sweeten the chocolate in a healthy and effective way, reducing its calorie while retaining its excellent taste.