A gluten-free diet is one that excludes most grains (like wheat, rye, & barley), and is highly recommended for people with celiac disease or gluten sensitivity. Gluten is the only protein found in food that is completely indigestible. Therefore, individuals who have celiac or sensitivity will experience inflammation in the intestines and should avoid gluten, according to the Mayo Clinic. However, not all gluten-free foods are good for your health. According to Jessica Fishman Levinson, MS, RDN, CDN, many breads, waffles, pancakes, crackers, and pretzels are made with processed refined foods (like potato starch, white rice flour, & tapioca flour). Levinson suggests that people who eat foods that are inherently gluten-free, such as fruits, vegetables, gluten-free whole grains (like quinoa & buckwheat), lean protein, healthy fats, can be healthy on a gluten-free diet.