What Is a Low Residue Diet?
A low residue diet limits the amount of undigested food (residue) that passes through the large intestine. By reducing fiber and other hard-to-digest components, this diet decreases stool volume and frequency, giving the bowel time to rest and heal.
The terms "low residue" and "low fiber" are often used interchangeably, though a low residue diet may also restrict certain dairy products, fats, and tough connective tissues in meats. The goal is to limit total daily fiber intake to approximately 10 to 15 grams per day.
When Is a Low Residue Diet Prescribed?
Your gastroenterologist may recommend a low residue diet in the following situations:
- Inflammatory bowel disease (IBD) flare-ups: Crohn's disease or ulcerative colitis exacerbations where reduced bowel stimulation is beneficial.
- Diverticulitis: During acute episodes to minimize irritation to inflamed diverticula.
- Before a colonoscopy or bowel surgery: To reduce stool volume and prepare the bowel.
- After bowel surgery: During the recovery phase as the intestine heals.
- Bowel obstruction or strictures: To reduce the risk of blockage in narrowed areas of the intestine.
- Radiation therapy to the abdomen or pelvis: To minimize radiation-related diarrhea.
Foods Allowed on a Low Residue Diet
Grains and Breads
- White bread, white rice, and refined pasta
- Plain crackers and saltines
- Refined cereals such as corn flakes or puffed rice
- Plain pancakes and waffles made with white flour
Proteins
- Tender, well-cooked meats (chicken, turkey, fish, lean beef)
- Eggs prepared any way
- Smooth peanut butter (in small amounts)
- Tofu
Dairy (if tolerated)
- Milk (limit to 2 cups per day)
- Yogurt without seeds or fruit pieces
- Mild, smooth cheeses
- Cottage cheese
Fruits
- Ripe bananas
- Canned or cooked fruits without skin or seeds (peaches, pears, applesauce)
- Fruit juices without pulp (apple, grape, cranberry)
- Melon (cantaloupe, honeydew)
Vegetables
- Well-cooked vegetables without skin or seeds (carrots, green beans, potatoes without skin)
- Lettuce in small amounts
- Strained vegetable juices
- Tomato sauce (strained, no seeds)
Foods to Avoid
- Whole grains: Whole wheat bread, brown rice, oatmeal, bran cereals, granola
- Raw vegetables: Broccoli, cauliflower, cabbage, Brussels sprouts, onions, corn
- Raw fruits: Berries, dried fruits, fruits with skin or seeds
- Legumes: Beans, lentils, peas, chickpeas
- Nuts and seeds: All varieties including coconut
- Tough meats: Gristle, fatty cuts, sausage, deli meats
- Popcorn
- Pickles, olives, relish
- Jams or marmalades with seeds
Sample Low Residue Meal Plan
Breakfast
Scrambled eggs with white toast and a small glass of pulp-free orange juice.
Mid-Morning Snack
Plain yogurt (no fruit chunks) with a ripe banana.
Lunch
Grilled chicken breast on white bread with lettuce. Canned peaches in light syrup on the side.
Afternoon Snack
Saltine crackers with smooth peanut butter. Apple juice.
Dinner
Baked fish with well-cooked carrots and mashed potatoes (without skin). White rice as a side.
Evening Snack
Applesauce or a small portion of cottage cheese.
Important Tips
- Eat smaller, more frequent meals throughout the day rather than three large meals.
- Chew food thoroughly to aid digestion.
- Stay well hydrated with water, clear broths, and pulp-free juices.
- Cook vegetables until they are very soft; avoid raw vegetables entirely during flare-ups.
- This diet is meant to be temporary. Work with your gastroenterologist to determine when you can begin reintroducing fiber-rich foods.
- If you experience worsening symptoms such as severe abdominal pain, bleeding, or persistent diarrhea, contact your doctor immediately.