Sugar alcohols: What you need to know about them and why they are used in protein bars? If you ever looked on the back of a protein bar, you’ve probably seen the words sugar alcohol. Sugar alcohols are used in many processed foods and products. For example, cookies, gum, toothpaste, mouthwash, protein bars etc. Contrary to popular belief Sugar alcohols are found naturally in some fruits, and vegetables and are not the same as artificial…