What is the right diet for bowel preparation?

Most providers recommend a clear liquid diet a day before your colonoscopy.

Few providers allow a low fiber diet for breakfast and lunch a day before your colonoscopy as long as you follow the split-dose instructions. You still have to be on a clear liquid diet for dinner. This type of instruction only works in certain patients.

Please, follow the specific instruction given to you by your physician or provider.

If you had a poor bowel prep before, you may need to be on low fiber diet for 72 hours before your colonoscopy and clear liquid diet on the day before your colonoscopy OR clear liquid diet for 48hrs before your colonoscopy.

What is a clear liquid diet?

Clear liquid diet excludes red and purple colored substances. Alcohol is also not allowed. Examples of clear liquid diet include water, tea, plain coffee, lemonade from powdered mix, carbonated beverages and soda, clear juices such as apple and white grape, plain or flavored gelatin, sports drinks such as Gatorade® , All-Sports®, Powerade®; sorbet, popsicles, honey, sugar, hard candy, fat-free broth, bouillon or consommé.

Clear Liquid Diet for Colonoscopy JPEG

What is low residue (or low fiber) diet?

Residue refers to undigested food or fibers that make up part of the stool. A low residue diet reduces the frequency and volume of stool while prolonging the time it takes food to travel the intestine. You should avoid the following food items: whole wheat breads, cereals, crackers and rolls; whole wheat pasta, brown or wild rice; any item with nuts, seeds and fruits; buckwheat, granola, cornbread, pumpernickel bread; tough meat and meat items with skin; raw fruits, prunes and prune juice, berries, raisins and dried fruits; raw or partially cooked vegetables. You should also avoid milk and milk products.

If you are on a low residue diet, you may be allowed to have white bread, rolls and biscuits; white rice or noodles; plain crackers, potato rolls, skinless cooked potato; skinless chicken, skinless turkey, fish and other sea food; canned fruits without seeds or skin; eggs; vanilla wafers.

Low Fiber Diet for Colonoscopy


Don’t be a poor prep