Patients with interstitial cystitis find that modifying their diet helps to reduce symptoms or avoid symptom attacks. Information collected by the Interstitial Cystitis Association (ICA) suggests that the control of symptoms with a modified diet varies from person to person, a finding that is also consistent with our clinical patients’ experiences. Although there is some experience and advice on diet for people with interstitial cystitis to follow, finding the right diet for you requires a lot of personal effort to adjust and experience, which is sometimes a long process and requires a lot of self-control, as any kind of habit adjustment is never easy. Diet in general: acidic foods, pickled products, smoked products and foods and beverages that are too stimulating are used sparingly or not at all. Now I will see the information combined with the clinical patient experience to make a summary of the following foods should be avoided: cheese, yogurt, chocolate, soy products, citric acid, coffee tomatoes, onions, peppers, ginger products, vinegar, sauces (including homemade soybean paste) sour apples, apricots, citrus, grapes, peach, pineapple, plums, sour grass, sour cherries aged, canned, cured, processed or smoked meat and fish products, salted beef, and meat products containing nitrates and nitrites alcoholic beverages (including beer and liquor), carbonated beverages such as soda, coffee or strong tea, sour juices, especially citrus or date juices, and of course, each person’s diet is different, and we hope that each patient can figure out a diet that works for him or her to reduce symptoms and avoid recurrence of interstitial cystitis.