A sweetener is a chemical or natural product that is used to give sugar or honey to a food or a drink without adding calories or carbohydrates. There are many types of sweeteners on the market, each with its own advantages and disadvantages. Artificial sweeteners, such as aspartame, sucralose and potassium aceulfame, are very concentrated and can be up to 200 times more sweet than sugar, but are often criticized for their artificial taste and potentially harmful to health . Natural sweeteners, such as stevia, xylitol and lactitol, are often considered healthier than artificial sweeteners, but can have a different taste and are not always as concentrated.