Diplomat of the American Board of Internal Medicine and Gastroenterology, Gastrointestinal Diseases, Colonoscopy, and Endoscopy
Kailash C. Singhvi, M.D.
Gastroenterology
Clear Liquid Diet
PURPOSE
The clear liquid diet supplies fluids and energy from foods that need very little digestion. This diet is also used in preparation for surgery. The clear liquids reduce bowel residue and provide fluids to ease thirst. These liquids also provide certain salts and minerals and prevent dehydration. It is usually the first diet used after surgery. Clear liquids are also given after a person has been without food by mouth (NPO) for a long time. Another use is in preparation for certain medical tests such as x-rays, colonoscopy and sigmoidoscopy.

NUTRITION

A clear liquid diet is not adequate in calories and nutrients. It should not be followed for more than five days unless supplemented by high-protein gelatin or other low-residue supplements.

FOOD GROUP

FOODS ALLOWED

FOODS TO AVOID

Milk & Beverages
No red, orange or purple
liquids!

(Regular, Diet & Decaffeinated) Tea, Crystal Light, Carbonated beverages, clear soda and sports drinks

Coffee, Milk, milk drinks
Anything opaque

Meats & meat substitutes

None

All

Vegetables

None

All

Fruits and fruit juices

Clear fruit juices; apple, clear (white) grape, clear (white) cranberry & lemonade

Fruit juices with unstrained fruit
or pulp

Grains & starches

None

All

Soups

Clear chicken, beef or vegetable broth and consomme

All others

Desserts

 

 

Fats

Miscellaneous

Flavored gelatin “Jello”
(no red, orange or purple flavors)
(no fruit chunks added)
Lemon popsicles, lemon ices

None
Sugar, honey, syrup, clear hard candy and salt

All others

 

 

All ( no butter or margarine)

All others

 

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