In general, a person with interstitial cystitis will want to eat a diet of foods and beverages that do not cause a reaction and worsen symptoms. Foods to avoid may include things like:
Spices
High-acid foods
Tomatoes
Chocolate.
(Click Interstitial Cystitis Diet for more information on various foods to include and avoid when you have interstitial cystitis, along with tips on how you can gradually reintroduce these foods back into your diet.)