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Dallas Bariatric Surgery Diet after Gastric Sleeve

Diet After Gastric Sleeve Surgery

What Your Diet Should Contain After Gastric Sleeve Surgery

After your Gastric Sleeve surgery, you may think that the rest is downhill!  But there is more work to be done to safely transition your eating habits and adjust to your new life. As with all weight loss procedures, proper aftercare is just as important as the surgery itself.

The physicians at Expert Surgical are premier weight loss surgeons in Dallas, and they will make sure you have a clear understanding of your post-op diet after having Gastric Sleeve surgery.

Strictly adhering to the dietary regimen described by your doctor and nutritionist is imperative to your health and for the success of your Gastric Sleeve Procedure.

Veering away from what is on the list of approved foods can lead to constipation, bowel obstruction, diarrhea, dehydration, gastric leaking, and stomach upset.  This is not what you want! Your goal is to follow doctors orders so that you will begin to lose weight in a healthy, safe manner.

While Expert Surgical will give you a customized diet to follow, here is what a typical diet “Post Gastric Sleeve Surgery” might actually look like during the first 1 to 4 weeks.

Week Number 1 – Clear liquids ONLY

During this week, you are to only intake clear liquids. This may seem difficult but most patients have no problem with this restriction. The reason for this is that the urge to eat is prompted by the hormone ghrelin. The section of the stomach which creates the largest amount of this hormone is removed after this particular surgery, so you will not feel a strong desire to eat.

NOTE: Be sure that your selection from the foods below includes sugar free products only

  • Clear Broths, veggie, chicken or beef
  • Water
  • Jell-O
  • Decaffeinated Coffee or Tea
  • Popsicles
  • NON-carbonated drinks

Steer clear of carbonated drinks, sweetened drinks, sugar and caffeine.

Week Number 2 – Liquid Diet with additional protein

At this point, your hunger impulses will begin to return, however, not in full force. Do not stray from what your physician instructs you to eat and make sure that you continue with the sugar free options ONLY. Add these items to the list from week one:

  • Non-carbonated liquid with protein powder added
  • Pudding, sugar free only
  • Any soup with softened noodles
  • Fat free yogurt
  • Creamed soups – strained, no chunky food allowed!
  • Sorbet
  • Carnation Instant Breakfast
  • Strained or thin applesauce
  • Juice

Week Number 3 – Purees

Be conscious of sugar and fats, stay away from these entirely. You will be able to add pureed foods into your diet which will give you the feeling of eating again. Be sure to ingest 60 grams of protein each day, don’t rush eating, and add new foods one by one without inundating your system. Each new food may cause an initial reaction that you aren’t normally used to experiencing, such as gas, stomach upset or diarrhea. Making sure that you introduce new foods one at a time will help you identify which one is causing the problem.

  • 1 Protein shake daily, blended with yogurt or non-fat milk
  • Almond or coconut milk
  • Hummus
  • Low fat cottage cheese
  • Soft veggies, cereals, and cheese (watch the cheese because of the fat content)
  • Ground chicken or beef, cooked in stock and pureed
  • Scrambled eggs
  • Steamed fish, mashed soft
  • Shredded tuna or salmon
  • Soft fruit, mashed such as canned fruit, bananas, avocados

Watch out for: Sugar, especially if you drink smoothies, starches like bread, potatoes, or pasta, and anything with a lot of fiber such as leafy greens, broccoli, or celery.

Week Number 4 – CONGRATULATIONS! You can begin to eat real food!

You’ve made it to week 4, and your new life is on the horizon. BUT TAKE IT SLOWLY! Your stomach and sleeve are still healing and you don’t want to push it; you don’t need to only eat pureed food, but be sure to stick with soft foods this week.

  • Enjoy a daily protein shake
  • Proteins like chicken and beef in solid form can be eaten slowly, chewing it completely
  • Fish (no fried!)
  • Fruit
  • Veggies, cooked to a soft consistency
  • Sweet Potatoes, mashed or baked potatoes
  • Cereal
  • Caffeinated beverages are allowed in small quantities


  • Fried Food
  • Carbonated soda or sugary beverages
  • Foods with a lot of fiber (the aforementioned veggies are still no-nos)
  • Hi carb options such as pasta
  • Candy or dessert
  • Hard to digest nuts
  • Whole milk, whole dairy
  • Healthy snacks such as hummus if approved by your doctor

Remember to hydrate constantly throughout all phases of the first 4 weeks. Your surgeon and nutritionist at Expert Surgical will continue to guide you beyond the first month so that you will never have to second guess what you should or should not eat.

If you are interested in learning more about Gastric Sleeve surgery in Dallas and are seeking a qualified surgeon, contact Expert Surgical today to schedule your free consultation.


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