Depending on the type of ostomy surgery, there may be some changes in your diet. Most people with colostomy and ileostomy surgery return to their normal diet after an adjustment period. Introduce foods back into your diet a little at a time and observe the effect of each food has on ostomy function. Chew your food well. It’s important to drink plenty of fluids because having all or part of your colon removed will affect your body’s ability to absorb fluids. Talking to a dietitian who is familiar with ostomies can provide valuable guidance.