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Diarrhea

Cancer treatments and medicines can cause your bowels to move much more often and become very loose (diarrhea). Uncontrolled diarrhea can lead to weight loss, dehydration, poor appetite, and weakness. If you have diarrhea, try avoiding high-fiber foods, which may make the problem worse. These include nuts, seeds, whole grains, legumes, dried fruits, and raw fruits and vegetables. You should also avoid high-fat foods, such as fried and greasy foods, because they can also promote diarrhea. Stay away from gassy foods and carbonated drinks too. Be sure to sip fluids all during the day to prevent dehydration. Once the diarrhea has stopped, slowly start back eating foods containing fiber.

What to do 

  • Drink plenty of mild, clear, non-carbonated liquids during the day. Drink liquids at room temperature. This may be better tolerated than very hot or cold beverages. 
  • Eat small, frequent meals and snacks during the day. 
  • Avoid greasy, fried, spicy, or very sweet foods. 
  • Limit milk or milk products to 2 cups a day. Yogurt and buttermilk are OK. 
  • Avoid drinks and foods that cause gas, such as carbonated drinks, gas-forming vegetables, and chewing gum. (You may drink carbonated beverages if you leave them open for at least 10 minutes before drinking.) 
  • Drink and eat high-sodium foods such as broths, soups, sports drinks, crackers, and pretzels. 
  • Drink and eat high-potassium foods such as fruit juices and nectars, sports drinks, potatoes with the skin, and bananas. 
  • Increase soluble fiber foods such as applesauce, bananas, canned peaches and pears, oatmeal, and white rice. 
  • Drink at least 1 cup of liquid after each loose bowel movement. Try water, sports drinks, or bouillon. 
  • Avoid chewing sugar-free gum and eating candies made with sugar alcohol (i.e., sorbitol, mannitol, or xylitol). 
  • Call your doctor if diarrhea continues or increases, or if your stools have an unusual odor or color.

What to eat or not eat when you have diarrhea*

 

Eat

Foods that may cause problems

High protein

Baked or broiled beef, pork, chicken, turkey, veal, fish, eggs, milk, cheese, yogurt


Breads, cereals, rice, and pasta

Bread and rolls made from refined, white flour; pasta; converted or instant rice; refined cereals such as farina, cream of wheat, cream of rice, oatmeal, cornflakes; pancakes; waffles; cornbread; muffins; graham crackers

Whole grain breads and cereals such as whole wheat, oat, and rye; bran; shredded wheat; granola; wild rice

Fruits and vegetables

Soups made with allowed vegetables; cooked asparagus tips, beets, carrots, peeled zucchini, mushrooms, celery, tomato paste, tomato puree, tomato sauce; baked potato without skin; canned or frozen fruit without peel

Fresh, unpeeled fruit; pears; melon; all other vegetables

Drinks, desserts, and other foods

Butter; margarine; mayonnaise; salad dressing; vegetable oil; cake; cookies; flavored gelatin desserts; sherbet; fruit pie made with allowed fruit; decaffeinated beverages; salt, pepper, spices, and gravy as tolerated

Desserts with nuts; coconut; dried fruit; chocolate; licorice; pickles; popcorn; foods with a lot of pepper, chili seasoning, or taco seasoning; hot sauces

*Adapted from Eldridge B, and Hamilton KK, Editors, Management of Nutrition Impact Symptoms in Cancer and Educational Handouts Chicago, Il: American Dietetic Association; 2004.

Revised: 02/04/2008

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