A patient of mine who is gluten sensitive has been gluten free for three years. She came with a concern of bloating after eating. Her diet revealed other foods that components of gluten might cross react with that are found in milk, corn, and even rice.
Off dairy products, her bloating has improved dramatically. She was able to monitor it by cooking for herself. When eating out in restaurants it becomes more difficult to tell what ingredients are added to prepared foods and what kind of cross contamination may occur.
Next stop is to help her with her constipation.