Some of the most popular protein bars are those produced by Quest Nutrition, MET-Rx and Pure Protein. Each of these companies offers a wide variety of flavors to appeal to all palettes.
Quest Nutrition offers more than 20 different flavors. Two of the most popular flavors are Chocolate Chip Cookie Dough and Cinnamon Roll.
Additional top-rated bars are MET-Rx Big 100 Colossal bar in Super Cookie Crunch and Pure Protein's Chocolate Peanut Butter. The protein content ranges from 20 to 32 grams per bar. Sugar content is low because they are made with sugar alcohol instead of refined sugar. Sugar alcohols are not easily digested by many people, so it is important for a person to monitor his reaction as he tries different protein bars.