Gluten intolerance encompasses several conditions, most notably celiac disease and non-celiac gluten sensitivity. Celiac disease is an autoimmune disorder where gluten consumption damages the small intestine. Non-celiac gluten sensitivity involves experiencing adverse symptoms after eating gluten, but without the intestinal damage characteristic of celiac disease. Both conditions can cause a wide range of symptoms, and proper diagnosis requires medical evaluation. If you suspect you have a gluten intolerance, it is crucial to consult a doctor for testing and personalized advice.