No Calories 1,120 Servings Dietary Supplement Scoop Enclosed Sweet 'n Natural Pure Stevia is calorie free, saccharin free, aspartame free and sucralose free. Stevia is a genus of about 240 species of herbs and shrubs in the sunflower family (asteraceae), and is widely grown for its sweets leaves. With its extracts up to 300 times the sweetness of sugar, stevia demand has risen for low-carbohydrate, low-sugar food alternatives.Superior Source