Eating after ileostomy surgery: the early adjustments

Call 911 if you have severe abdominal pain with vomiting and nothing at all is coming out of your stoma.

Call your care team the same day if your stoma is producing less stool than usual, or if you have belly swelling or pain. MedlinePlus names those as the warning signs of a blockage. Call the same day too if you have signs of dehydration, persistent leaking, skin problems around the stoma, a change in the colour of your stoma, or diarrhea that will not settle.

An ileostomy brings a real risk of dehydration. Waste leaves the body before the large intestine has soaked water back out of it. That is why fluid intake is a medical instruction here, not general advice.

Start here. Most of what follows is temporary.

MedlinePlus says that people who have had an ileostomy can most often eat a normal diet. It adds that tolerance varies from person to person.

You are not facing a lifetime of restriction. You are facing a stretch of learning what your own system now handles. That is a different thing, and a much better one.

This is the most useful rule in the whole business. MedlinePlus explains the reason well. Try only one at a time. Then if you have trouble, you will know which food caused it.

Picture adding sweetcorn, mushrooms and a curry to the same meal. Something goes wrong. You have learned nothing, except that dinner now scares you.

Keep a simple note. Date, food, what happened. Within a few weeks you will have your own personal list. That beats a generic one, because tolerance really does differ between people.

MedlinePlus gives a two-word instruction that is easy to shrug off. Chew your food well.

With an ileostomy, food takes a much shorter route. It skips the long journey through the large intestine. So anything you swallow in big pieces reaches a small opening more or less whole. Chewing properly is the cheapest way to prevent a blockage.

It also means eating more slowly. That is not a bad habit while your digestion is settling in.

MedlinePlus is specific here. Drink 6 to 8 cups, which is 1.5 to 2 litres, of fluid every day. The reason is the risk of dehydration.

This is the number to remember from this article. With an ileostomy, output is more liquid. The water going out has to be replaced.

Ask your team a question. Does your particular output mean you need more than this? Also ask what early dehydration feels like for you. Catching it early keeps you out of hospital.

MedlinePlus gives two lists. They matter more for social planning than for health.

Odour-producing foods: onions, garlic, broccoli, asparagus, cabbage, fish, certain cheeses, eggs, baked beans, Brussels sprouts and alcohol.

Gas-producing foods: cucumbers, radishes, sweets, melons and carbonated drinks.

Nothing on those lists is dangerous. You may simply pick your timing before a long meeting or a wedding.

MedlinePlus also offers a small tip for noise. On an empty stomach, eat solid foods before liquids. That can quiet stomach sounds.

Many people follow a low-fibre diet for a while after surgery, while things heal. MedlinePlus describes what that looks like. Eat refined grains such as white bread, white pasta, white rice and low-fibre cereals. Eat cooked or canned vegetables. Eat canned fruit and fruit juice without pulp. Eat cooked meat, fish, poultry, eggs and smooth peanut butter.

The same guidance lists what to avoid. Skip whole grains, beans, legumes, nuts, seeds and raw vegetables. Skip high-fibre and dried fruits. Skip deli meats and deep-fried foods.

How long this phase lasts is a question for your surgical team. It is not a question for the internet. Ask them directly. Ask too when they want you to start adding things back.

Find someone who works often with ostomy patients. They can save you weeks of trial and error. They can also help you eat enough while you recover from major surgery. Ask whether one is available through your cancer centre.