It is very important to buy quality and pure ingredients. In addition, many people also want to avoid additives and preservatives in order to save money. I have no personal opinion on this matter, but I am going to focus on the latter for the purpose of this review. The most expensive type of protein bar is called "protein powder". These are protein bars that contain protein powder. You can buy these protein powders directly from a health food store, but most of these bars will also contain natural flavors, flavors you can usually find in the foods we eat all the time. Many of the natural ingredients in these bars are also high in protein and carbs, so they may cause weight gain and a host of health issues. For this reason, I have avoided this type of protein bar, as well as any that contain any form of artificial flavors. I have also chosen to avoid the "sweeteners" that most companies put into their protein bars. There are many sources online to find a sugar-free alternative to sweeteners, such as agave nectar, maple syrup, and stevia, but these are all high in carbs and calories, so they are often not a good fit for people who are trying to lose weight. I recommend that you buy a protein powder.