A clear liquid diet is a temporary diet and may be prescribed by your doctor for use before or after certain medical procedures.

A liquid diet foods is not usually used to lose weight; instead, it’s followed due to a doctor’s orders or as a traditional pre or post-operatory procedure. There are two types of liquid diets: the clear liquid diet and the full liquid diet foods. A clear liquid diet is more restrictive and leaves no undigested substances in the stomach or intestinal tract. A full liquid diet foods is more flexible and includes some harder-to-digest foods. You may also be asked to avoid liquids that are red or purple before surgeries, as these colors may stain the bowels and appear to be blood, according to Stanford Medicine Cancer Institute.

general, a clear liquid diet foods consists of clear liquids or foods that turn to liquids at room temperature. For example: water, broth, clear juices, tea/coffee. The purpose of clear liquid diet foods is mainly to provide rest to your gastrointestinal tract prior to a test or procedure such as colonoscopy. It will also ensure adequate visibility for the procedure.The goal of clear liquid diet is to keep you hydrated, provide minerals and vitamins for energy and to keep your stomach and intestines rested. It will not meet your nutritional needs and hence it is always recommended short term only. This diet can also be safely recommended for patients with diabetes. Remember your goal is not to eat or drink sugar free liquid or food.

Liquid Diet Foods

Liquid Diet Foods

List of best Foods in the Liquid Diet


There are many beverages allowed on a clear liquid diet food; in fact, the diet is mostly made up of beverages. As long as they are clear, any liquid is allowed. Examples of clear liquid beverages appropriate for this diet include plain water; certain fruit juices without pulp, such as grape, apple or cranberry juice; lemonade; and fruit punch. Clear sodas; coffee or tea, without milk or cream; and sports drinks are allowed.


Prepare plain gelatin dissolved in water as part of a clear liquid diet food. The thicker consistency of gelatin can help add variety to a diet that is entirely liquid, and it may feel like more substantial food. Jackson Siegelbaum Gastroenterology clinic of Pennsylvania recommends adding high-protein gelatin to an extended liquid diet food, as adhering to the diet for even a few days does not provide adequate calories, protein or nutrition.

Pureed Soups

Bisques or pureed soups are another way to add variety and nutrition to a liquid diet. You can make your own by simmering carrots, potatoes, broccoli, cauliflower, asparagus, or other seasonal vegetables in just enough chicken or vegetable stock to cover them. Spice it up with curry powder, ginger, garlic, onion, nutmeg, or fresh herbs. When the vegetables are tender, use an immersion blender to puree until silky. Blend in a dollop of sour cream, a few slices of avocado, silken tofu, or yogurt to add creaminess and extra nutrition. Cold soups, such as gazpacho or cucumber yogurt soup, can be whirred together without the need for any cooking.


Don’t neglect water as a valuable part of both a clear and full liquid diet food. Arizona digestive health explains that water and other water-based clear liquid diet foods help maintain hydration, provide the body with electrolytes, and maintain energy when more substantial food can’t fulfill the same tasks.

Pureed Soups

Pureed Soups

Vegetable Juice

Vegetable Juice for Tomato juice or V8 offers some good vegetable nutrition without all the sugar of fruit juice. (Choose low sodium versions if sodium is a concern.) V8 is also tasty as a hot drink! See also: Juicing: Healthy Habit or Blood Sugar Bomb.


Sip plain broth as part of a clear liquid diet food. The broth can be canned in a fat-free variety, bouillon or consommé. Broth is more flavorful than many other clear liquid foods, so it helps add variety to the diet.


Dairy Include calcium and protein in your daily full liquid diet by regularly eating and drinking dairy products such as milk, milk-based soups, yogurt, custard and ice cream or frozen yogurt. Though some of these products have high amounts of fat and calories, they provide the body with a greater amount of energy than many other liquid diet foods.