Full liquid diet: MedlinePlus Medical Encyclopedia (2024)

A full liquid diet is made up only of fluids and foods that are normally liquid and foods that turn to liquid when they are at room temperature, like ice cream. It also includes:

  • Strained creamy soups
  • Tea
  • Juice
  • Jell-O
  • Milkshakes
  • Pudding
  • Popsicles

You cannot eat solid foods when you are on a full liquid diet.

Why You May Need This Diet

You may need to be on a full liquid diet right before a medical test or procedure, or before certain kinds of surgery. It is important to follow the diet exactly to avoid problems with your procedure or surgery or your test results.

You also may need to be on a full liquid diet for a little while after you have had surgery on your stomach or intestine. You may also need to be on this diet if you are having trouble swallowing or chewing. If you are prescribed this diet for dysphagia (swallowing problems), your speech pathologist will give you more specific guidelines. Sometimes the full liquid diet is a step between a clear liquid diet to your regular diet.

What You Can Eat and Drink

You can eat or drink only things that are liquid. You may have these foods and drinks:

  • Water
  • Fruit juices, including nectars and juices with pulp
  • Butter, margarine, oil, cream, custard, and pudding
  • Plain ice cream, frozen yogurt, and sherbet
  • Fruit ices and popsicles
  • Sugar, honey, and syrups
  • Soup broth (bouillon, consommé, and strained cream soups, but no solids)
  • Sodas, such as ginger ale and Sprite
  • Gelatin (such as Jell-O)
  • Boost, Ensure, Resource, and other liquid supplements
  • Tea or coffee with cream or milk and sugar or honey

Ask your doctor or dietitian if you can include these foods in your full liquid diet:

  • Cooked, refined cereals, such as cream of rice, oatmeal, grits, or farina (Cream of Wheat)
  • Strained meats, like the ones in baby food
  • Potatoes pureed in soup

Do not eat any kind of cheese, fruit (fresh, frozen, or canned), meat, and cereals that are not on your "OK" list.

Also, do not eat raw or cooked vegetables. And do not eat ice cream or other frozen desserts that have any solids in them or on top, such as nuts, chocolate chips, and cookie pieces.

Try having a mix of 5 to 7 of the foods you can eat for breakfast, lunch, and dinner.

Liquid foods do not include mashed foods, such as mashed potato or avocado.

Eating only a full liquid diet can give you enough energy, protein, and fat. But it does not give you enough fiber. Also, you may not get all the vitamins and minerals you need. So, your doctor may recommend that you take certain vitamins and supplements.

This diet is safe for people with diabetes, but only when they are followed closely by their doctor.

Adding More Calories

For most people on a full liquid diet, the goal is to get 1,350 to 1,500 calories and 45 grams of protein a day.

If you need to be on a full liquid diet for a long time, you will need to be under the care of a dietitian. Ask your doctor if you can eat these foods together to add calories:

  • Nonfat dry milk added to your drinks
  • Protein powders or liquid or powdered egg whites added to drinks
  • Instant breakfast powder added to milk, puddings, custards, and milkshakes
  • Strained meats (like the ones in baby food) added to broths
  • Butter or margarine added to hot cereal and soups
  • Sugar or syrup added to beverages

Alternative Names

Surgery - full liquid diet; Medical test - full liquid diet

References

Pham AK, McClave SA. Nutritional management. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 6.

Range TL, Samra NS. Full liquid diet. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan. Updated March 9, 2022. Accessed November 25, 2022. PMID: 32119276 www.ncbi.nlm.nih.gov/books/NBK554389/.

Read More

  • Diarrhea
  • Food poisoning
  • Intestinal obstruction and Ileus
  • Nausea and vomiting – adults

Patient Instructions

  • After chemotherapy - discharge
  • Bland diet
  • Changing your ostomy pouch
  • Clear liquid diet
  • Gallstones - discharge
  • Intestinal or bowel obstruction - discharge
  • Large bowel resection - discharge
  • Low-fiber diet
  • Pancreatitis - discharge
  • Small bowel resection - discharge
  • Total colectomy or proctocolectomy - discharge
  • When you have diarrhea
  • When you have nausea and vomiting

Review Date 7/30/2022

Updated by: Stefania Manetti, RD/N, CDCES, RYT200, My Vita Sana LLC - Nourish and heal through food, San Jose, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

Related MedlinePlus Health Topics

  • After Surgery

Browse the Encyclopedia

Full liquid diet: MedlinePlus Medical Encyclopedia (2024)

FAQs

Is a full liquid diet nutritionally adequate? ›

Eating only a full liquid diet can give you enough energy, protein, and fat. But it does not give you enough fiber. Also, you may not get all the vitamins and minerals you need. So, your doctor may recommend that you take certain vitamins and supplements.

What foods are allowed on a full liquid diet? ›

specific liquids or foods allowed are:

Milk and milk products: Milk (all types including buttermilk, soy, rice, almond, and cow's), milkshakes, pasteurized eggnog, smooth ice cream, frozen yogurt, custard, yogurt without fruit and pudding. Vegetables: All vegetable and tomato juice.

Are mashed potatoes allowed on a full liquid diet? ›

Do not eat any foods that require chewing (including soft foods). Liquid foods do not include mashed foods, such as mashed potatoes. Do not eat those textures. Talk with your Speech-Language Pathologist (SLP) regarding any questions you may have about your diet recommendations or your swallowing.

Are eggs on a full liquid diet? ›

Milk may be used in beverages such as eggnog*, milkshakes, malted milk, high protein milk and in cream soups. Eggs and Cheese * Do not use raw eggs, use custard, soft custard, or a commercial egg mixture that is pasteurized.

How safe is an all liquid diet? ›

Risks of a Clear Liquid Diet

"Clear liquid diets are inadequate in calories, protein, vitamins and minerals, so they should be used only for very short periods and should be used only when medically necessary," says Arnaout.

Are full liquid diet foods better than clear liquid? ›

You may have heard of a clear liquid diet, where you only drink things like water, tea, and broth. A full liquid diet is similar, but it includes all foods that are liquid or will turn to liquid at room temperature or melt at body temperature.

What is lacking only in a full liquid diet? ›

Liquid diets are typically low in vitamin A, iron, vitamin B-12, and thiamine. People who must eat a full liquid diet for extended periods may need to take supplements to prevent nutritional deficits. It is possible to get enough protein, fiber, and other essential nutrients on a full liquid diet.

Can I eat pasta on a full liquid diet? ›

Strained cream soups • Chicken, beef, or vegetable broths • Popsicles • Do not eat any Solid Food • Do not eat any solid food in liquids such as soup with pasta, meat or vegetable pieces or yogurt with fruit pieces in it.

Can you eat oatmeal on a full liquid diet? ›

Yes, I was allowed runny oatmeal or runny cream of wheat while on full liquids.

Can I have peanut butter on a full liquid diet? ›

Don't eat vegetables, bread, whole cereal and grain products, meat, chicken, fish, eggs, meat substitutes (nuts and nut butters, tofu, soy), hard cheese, oils, butter, or margarine.

Can you eat egg drop soup on a full liquid diet? ›

A full-liquid diet includes:

Strained/pureed low-fat cream soups without chunks of meat or vegetables; thin soups with skim or 1% milk, as needed. Broth-based soup; add in a beaten egg white or Eggbeaters to boiling broth for a healthy “egg drop” soup.

How do you satisfy hunger on a liquid diet? ›

Try bone broth or an Ensure Clear nutrition drink. Decaffeinated drinks also have been proven to decrease hunger pangs. Need to chew? Try munching on ice, gummy bears or gelatin.

What is an example of a full fluid diet? ›

The full fluid diet is designed for patients who are unable to chew, swallow, or digest solid foods. A full fluid diet includes clear fluids and milk and milk products such as ice cream, cream soup and pudding but no solid food.

Can I eat chicken noodle soup on a liquid diet? ›

Consommé NO solid foods such as meat, chicken, breads, vegetables, fruit, nuts, eggs, or cheese. NO dairy products such as milk, creamer, and non-dairy creamer, ice cream, whipped cream, half & half, etc. NO cloudy liquids such as orange juice, tomato juice or soup, potato soup, and vegetable or meat soup.

What is the most filling thing for a liquid diet? ›

To make liquid meals more filling, include liquid foods rich in protein, fiber or fat, such as avocado, nut butters, beans and dairy or dairy substitutes. Fat, fiber and protein all help keep you full for longer by slowing down digestion.

What happens to your body on an all liquid diet? ›

Missing out on essential nutrients can lead to side effects such as fatigue, dizziness, hair loss, gallstones, and heart damage. Also, if you don't get enough fiber, because you're not eating whole grains, fruits and vegetables, you can get constipated.

Who would benefit from a full liquid diet? ›

A full liquid diet is often used when you can't eat solid foods. For example, you may be preparing for a medical procedure or healing from one. Or you could have problems with your mouth or throat that make it hard to chew or swallow.

How long can you stay on a liquid diet? ›

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.

Can elderly survive on a liquid diet? ›

Liquid diets for seniors, or meal replacement shakes, are ways to get the nutrition they need without solid foods. Seniors who have trouble chewing, swallowing, lack appetite, or have health problems that require meals that are easy to digest, are often told to follow these diets.

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