Interstitial cystitis (IC) is a chronic irritation of the bladder that causes frequent infections. The Center for Holistic Urology states that interstitial cystitis causes pain and frequent urination. Though it is not known what exactly causes interstitial cystitis, IC and a host of other bladder-affecting conditions may simply be caused by components that irritate the bladder. While some foods and beverages are soothing and healing to the bladder, others irritate it and should be limited.
Tomatoes
Tomatoes are generally a healthy fruit rich in vitamins and minerals. Unfortunately, they are also very acidic and likely to irritate the bladder, according to the Center for Holistic Urology. Additionally, tomatoes are high in potassium, which can cause bladder pain for some people. People who suffer from interstitial cystitis, frequent bladder infections or any other cause of bladder pain may want to avoid tomatoes, tomato sauce and even salsa.
Citrus Fruits
Citrus fruits such as oranges, tangerines, grapefruits and lemons are one of the most common bladder irritants that exist, according to the Abramson Cancer Center at the University of Pennsylvania. Although the reason that citrus fruits can irritate the bladder is not known, it could be because they are so acidic, or also because they are high in potassium. People with bladder problems may want to replace citrus fruits with more mild stone fruits like peaches and plums.
Diet Soda
Diet soda can irritate the bladder for three different reasons. The Abramson Cancer Center explains that carbonated beverages often irritate the bladder. Additionally, caffeine, found in some diet sodas, can cause pain to the bladder. Finally, the artificial sweeteners aspartame and saccharin, which are used to give diet soda a sweet flavor, also cause bladder irritation, according to the Abramson Cancer Center. Sodas with real sugar or juices without carbonation may cause less irritation to the bladder.
Cranberries
The evidence on the effects of cranberries seems almost contradictory, yet it is explained based on its ability to promote different effects to different people. For example, the Abramson Cancer Center states that for some people, cranberries and cranberry juice act as bladder irritants. The Mayo Clinic, however, reports that cranberries can destroy infection-causing bacteria and reduce a person's risk of developing a urinary tract infection by keeping bacteria away from the lining of the bladder. It seems to be an individual decision whether or not using cranberries is the right choice depending on health needs.


