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Gastric Sleeve Post-Op Diet- Tested and Trusted


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A well-balanced, nutritional diet is vital in the months following the surgery. Subsequent to surgery, a strict liquid diet is mandatory to increase the efficacy of the procedure and reduce certain medical conditions post-op as they can get in the way of recuperation.

Eating after sleeve gastrectomy is a tricky business as one needs to get used to the fact that their stomach cannot accommodate the same amount of food anymore.

Sleeve Gastrectomy alters the stomach size to hold nearly 1-4 ounces of liquid. Vertical sleeve gastrectomy (VSG) is not an instant solution to obesity. Instead, it requires enormous changes in your lifestyle and diet.

Remember not to compare your weight loss progress with others’. Listen to your body before transitioning to the next step of your diet. Go at your own pace.

You must commit to eating healthy food in controlled portion sizes and exercise regularly. There are 4 stages of the post-op diet. The first being clear liquids stage.

Gastric Sleeve Diet Stage-1

Stage 1: Clear Liquids ONLY

(Begins a day after surgery)

In Stage 1, you are limited to clear liquids only. The hunger-producing hormone ghrelin decreases after surgery, therefore, the urge to eat is less.

Your choice of liquids may include [1]Zawn Villines, Medical News Today. “What To Eat and Avoid On The Gastric Sleeve Diet“
View in Article

  • Water
  • Clear broth of chicken or veggies
  • Sugar-free thinned juices (of apple, cranberry or grapes) without pulp
  • Sugar-free popsicles and Jell-O
  • Tea/coffee (decaf and unsweetened)
  • Soluble whey protein powder

Suggestions

  • Keep yourself hydrated by sipping fluids regularly
  • Refrain gulping down the fluid instead try to sip
  • Avoid using a straw as it can cause bloating/gas build-up
  • Do not consume any carbonated beverages or soft drinks

A Sample Clear Liquid Menu

Breakfast Lunch Dinner Snacks
3-4 ounces thinned, sugar-free juice –Apple/Cranberry/ Vegetable broth in the same quantity 5-6 ounces Broth, Sugar-free Jell-O 3-4 ounces thinned fruit juice – Apple/Grapes/Cranberry, Sugar-free popsicles Unsweetened Tea, flavored water or chicken/veggie broth

Gastric Sleeve Diet Stage-2

Stage 2: Liquid Only Diet Post Gastric Sleeve Surgery

Your transition to Stage 2 becomes easy if there is no nausea or vomiting. The liquids in this phase are thicker than stage 1. You may begin with high protein thicker drinks diet including:

  • Stage 1 Clear Liquids
  • A Whey Protein shake or other protein powders
  • Unsweetened soy milk or skimmed milk of almond or coconut
  • Greek Yogurt
  • Sugar-free egg custard or pudding
  • Soups void of any vegetable pieces or chunks
  • Diluted cereals of wheat and rice

Suggestions

  • Avoid carbonated/fizzy drinks as they may cause acid reflux after gastric sleeve.
  • Drink enough fluids (64 ounces) to prevent dehydration.
  • A high quality, protein supplement (60-90 gms) daily is suggested.

A Sample Thick Drinks Menu

Breakfast Lunch Dinner Snacks
Whey protein isolate and oatmeal cereal with skim milk 3-4 ounces of Greek Yogurt with almond milk Strained soup and sugar-free pudding Vegetable/chicken broth, thinned juices and Jell-O

Gastric Sleeve Diet Stage 3

Stage 3: Pureed Food Diet For VSG Patients

Begins 3-4 Weeks Post-op

By the end of Stage 2, if you are tolerating liquid diet well, you may progress to Stage 3 (Pureed Diet). All foods at this stage must be blended to a soft consistency, should be low in fat and sugar. Start with high protein rich foods first, followed by veggies and lastly seedless fruits. This stage may include the following:

  • Plain or sugar-free yogurt without fruit chunks
  • Sieved cream soups of potato or chicken made with skim milk
  • Skim milk with whey protein powder
  • Non-fat cottage cheese
  • Mashed potatoes/sweet potatoes
  • Pureed bananas and smooth applesauce
  • Pureed carrots, spinach, green beans

Suggestions

  • Preferred Cooking Methods: baked, boiled, grilled or slow cooker
  • Avoid fibrous vegetables such as broccoli and cauliflower
  • Do not consume saturated fats, butter, margarine
  • Do not have chicken/turkey with skin

A Sample Pureed Food Menu

Breakfast Lunch Dinner Snacks
Mashed ripe banana, Protein shake OR cream of wheat cooked  with skim milk 1/4 cup of moist cooked, blended chicken OR boiled and blended potatoes/veggies 1/4 – 1/3 cup of Blended chili or other soup Greek yogurt, 3-6oz or an 8oz protein drink

Stage 4: Soft Food Diet

During Stage 4 – Soft Diet – Try to consume 4-6 small meals each day. Eat slowly and stop eating at the first sign of fullness or a slight tightening in your stomach.

  • Lean meats, poultry, fish and eggs
  • Sugar-free Lemonade and Tea/Coffee (preferably, decaffeinated)
  • Wheat/rice porridge with skimmed milk
  • Softly cooked chicken, fish or turkey in gravy/thin sauce
  • Small pieces of potato, carrot in thin gravy

Suggestions

  • High protein drinks help you meet your daily protein requirements.
  • Chew thoroughly before swallowing in and take small bites.
  • Drink slowly! wait 30 minutes AFTER a meal to begin drinking again.
  • If you choose to include bread in your diet, opt for 100% whole grain.
  • Avoid pasta, rice, and corn in the first 7-8 weeks post surgery.
  • Avoid skins and seeds of fruits and vegetables.

Gastric Sleeve Diet Stage 4

Tips for A Successful Sleeve Gastrectomy Surgery

  • Slowly progress to a “regular” diet.
  • Introduce new textures/skins on fruits, nuts, etc. cautiously.
  • Supplement meals with a high protein shake or beverage.

Nutrition After Gastric Sleeve Surgery

Vitamin and mineral supplements are essential for bariatric surgery patients to prevent weak bones and fractures and to build body tissues.

The way you eat after surgery must be permanently changed. Initially, the volume of food to be consumed will be restricted to aid healing and at the same time, provide essential nutrients. Below are some of the multivitamins which may be required:

Proteins

  • The recommended protein intake: Women: 50–60 grams of protein. For men: 60–70 grams of protein
  • Tofu, beans/legumes are good sources of proteins.

Multivitamins

John Hopkins Medical Center recommends taking chewable mineral supplements containing iron (36mg), folic acid (800mcg) and thiamine (3mg) and 2 mg of copper along with selenium and zinc.

Calcium

  • Taking chewable calcium tabs of 500-600 mg, thrice a day
  • Do not combine calcium with iron or multivitamins for good results

Vitamin D

  • It is required for calcium absorption and maintaining healthy bones
  • Taking 3,000 International Units of Vitamin D3 per day is advised

Exercise

Remember, sleeve gastrectomy is not a magic wand to reduce weight. In order to maintain a healthy weight long-term, establishing healthy eating habits is crucial.

In general, consuming 3-6 planned limited portion meals every day consisting of healthy, lean proteins, veggies, whole grains, fruits, and low-fat dairy is recommended. Processed carbs, high-cal liquids, and foods with high sugar/fat should be avoided.

References

  1. Zawn Villines, Medical News Today. “What To Eat and Avoid On The Gastric Sleeve Diet“.
  • Vertical Sleeve Gastrectomy post-op diet
  • Diet plan after Sleeve Gastrectomy patients
  • Post Sleeve Gastrectomy nutrition
  • Soft food diet Gastric Sleeve
Updated on July 17, 2019

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