An extensive list of acidic foods, with individual values, is available for viewing at the official Acid Alkaline Association website. Acidic foods aggravate digestive problems for many people with colitis and other forms of inflammatory bowel disease, but the reactions to different foods varies between individuals, according to WebMD.
Intolerance to certain foods is a common source of colitis, and keeping a diary is a recommended method for isolating the foods that cause discomfort and digestive problems, says WebMD.
Colitis can be either a temporary or chronic condition of the bowel in which it becomes inflamed and fails to absorb nutrients properly, explains WebMD. Depending on the diagnosis and severity of colitis, healing measures can range from a change of diet to corrective surgery.