In the first few weeks following a colostomy, patients are typically put on a low-fiber diet, according to NHS Choices. Eventually patients can resume a normal, balanced diet that emphasizes fruit and vegetables. Any dietary restrictions the patient followed prior to surgery can be reintroduced.
A diet may not need to change after an individual has had a colostomy, provided a doctor approves a patient's regular eating plan, according to Mayo Clinic. Individuals may find that they react differently to certain foods, making it necessary to reduce or refrain from consuming them. Certain foods may cause gas, indigestion, diarrhea, constipation or urine odor; however, the symptoms and the foods depend on the individual and can be determined through trial and error.
Common gas-producing foods include beans, Brussels sprouts, carbonated beverages, onions and cabbage, states Mayo Clinic. Mushrooms, coconut, dried fruit, celery and popcorn are known for causing incomplete digestion, as are vegetable and fruit skins. Patients with thickened stools may try omitting bananas, rice, creamy-style peanut butter, cheese and tapioca from their diets and monitoring the results. Problems with thin stools may be the result of fried or spicy foods, grape or prune juice or foods high in added sugar. Additionally, patients may experience an increase in urine odor, which can be caused by foods such as eggs, fish, garlic, broccoli and alcohol.