5. Celiac disease
Essentially an allergy to gluten (which is typically found in wheat), this autoimmune disorder often manifests itself with diarrhea and bloating. “Celiac disease doesn’t usually doesn’t give abdominal pain, indigestion or heartburn,” explains Dr. Enns. “Diarrhea is definitely the most common complaint.” Celiac disease, which can be diagnosed with a blood test, is best treated by sticking to a gluten-free diet. “Some people may not have celiac, but they may find they are gluten sensitive,” adds Dr. Enns, “so they may also feel better when they’re not eating a lot of wheat or gluten.” However, eliminating gluten from your diet if you’re not sensitive to it could be bad for your health. Consult your doctor, naturopath or registered dietitian before making major changes to your eating habits.