What is the best Post-Gastric Sleeve Surgery Diet?

Post-Gastric Sleeve Surgery Diet and Nutrition:  Why you need a Special Diet after a Gastric Sleeve Surgery

What happens with Gastric Sleeve Surgery

  • Gastric sleeve surgery involves reducing the size of the stomach, which helps patients lose weight by limiting how much food they can comfortably or safely consume without feeling uncomfortable.
  • Once the size of the stomach is reduced, a person’s appetite is also reduced and they feel hungry less often.
  • A smaller stomach size gives the sensation of being fuller, faster, which also helps to decrease food intake and excessive calorie consumption.

Gastric Sleeve Surgery is gaining more popularity as it has a much shorter procedure time than Gastric Bypass or Lap Band Surgery and is effective at helping people lose weight to overcome obesity.

Unlike the lap band, no adjustments are needed with a Gastric Sleeve Procedure. It appears that surgical patients are able to lose more weight with a Gastric Sleeve compared to a Lap Band procedure or a Gastric Bypass.

Nutritional Changes AFTER Gastric Sleeve Surgery

In the days, months and years following your gastric sleeve surgery, you’ll need to take the utmost care with your nutritional intake and eating routines. (ASK your Surgeon as this will differ between patients).

In general, here is the general eating advice given to patients who are about to have Gastric Sleeve operations – but YOUR instructions could vary so ask your Doctor or Surgeon for specific post-op care to suit your particular health needs.




Week ONE after Gastric Sleeve Surgery Diet – What Might Be Typical

*The information below is of a general nature and is not intended as advice.  It is NOT a substitute for the medical information or pre and post-op recommendations given to you by your GP and Gastric Surgeon or any other health professionals assisting you with your medical care. It is intended only as an information starting point for discussions with your specialist about how you’ll need to adapt your eating style after Surgery. Every patient, every procedure and every Bariatric Surgeon and Nutritional Team has a unique approach – so please, follow your Specialist’s instructions.


Week ONE After Gastric Sleeve Surgery Diet: Consumption of Clear Liquids

  • First week after your gastric sleeve surgery, you may be allowed ONLY to take in clear liquids such as water, fresh juices, soups and or broths.
  • You’ll typically be told to take small sips of these liquids to ingest very slowly.
  • Decaffeinated tea and coffee are usually okay a few days after your Surgery (check this with your Surgeon, as this may not be permitted for you in relation to your health or specific procedure.
  • You should, avoid ALL carbonated beverages and drinks with added sugars.
  • If you’re readily able to tolerate liquids, then your Surgeon will advise you when you can advance to the next stage of your eating plan.


Week TWO After Gastric Sleeve Surgery Diet: Pureed Foods

  • You may now typically take in foods in a pureed form
  • Things like, mashed potatoes, low-fat cottage cheese, sugar-free yogurt, soup with blended vegetables and hot watery oatmeal.
  • Don’t be tempted to overdo it. It’s not worth the risk and may cause discomfort very quickly if the wrong foods are consumed (or too much of the right ones) after surgery.


Week THREE After Gastric Sleeve Surgery – Diet: Protein Shakes and Soft Foods

  • Week three, you might be able take protein shakes around once a day.
  • Possible approval to eat hummus, steamed or boiled vegetables, soft cereals, scrambled eggs, mashed fruits, steamed fish, ground chicken with stock and soups.
  • Avoid Starchy foods like rice, pasta and bread.
  • Also avoid fibrous vegetables like broccoli, celery and asparagus as they are difficult to digest.




Week Four After Gastric Sleeve Surgery Diet: Some Solid Meals

  • Week four, your eating regime may now include some ‘solid’ meals.
  • You may start eating some fruits, sweet potatoes, baked potatoes, cereals, fish and chicken.
  • Avoid eating fried foods, desserts, lollies, whole milk and nuts as these are very difficult to digest.
  • Hard-boiled eggs, bananas or hummus with soft rice crackers are good options, but be sure to check with your Surgeon and or Nutritionist/Dietitian.
  • It’s important to keep in mind that your meals should have a high nutritional value (or be nutrient-dense) as well as remain sparse in calories.
  • During the following week, you can typically have one or two healthy snacks in-between meals.

During the months AFTER your surgery, you’ll have been given specific eating recommendations from your Surgeon, so monitoring your eating regime and portion control is a good idea.

How Long Before I see Weight Reduction after Gastric Sleeve Surgery?

Patients have been known to start seeing weight change results just weeks after their gastric surgery procedures. On average, with Gastric Surgery, you can anticipate losing around 60% of your pre-surgery weight. (Everyone is different, and It is important to follow your Surgeons advice to achieve the best results.)


What about my Excess skin after Gastric Band or Gastric Sleeve procedures?

Gastric sleeve surgery and other weight loss procedures can leave you with extra ‘sagging’ baggy skin. Redundant Skin is the medical term used for the post-weight loss skin (rolls or sagging skin) and it typically needs to be surgically reduced (excised), usually along with liposuction.

Sadly, you can’t exercise skin off. Excess skin, along with stubborn fat stores, even after significant weight loss, means you’ll probably require more surgery. This is so you can achieve the body contours you are wanting after working so hard to get a healthier, more natural body shape after a massive weight loss.

If you need your redundant skin reduced to achieve smoother body contours, our leading Plastic Surgeons Directory offer many various Body Contouring procedures. The most common cosmetic surgeries or plastic surgeries after significant weight loss occurs include:

Other Helpful Links:

We can help you begin your weight loss journey with a realistic approach to reshaping your body after lifestyle changes and significant weight loss after Bariatric Surgery.

For more information on Bariatric Surgery and Surgeons in Australia who can perform Gastric Sleeve or related Bariatric procedures, visit www.newbodyspecialists.com.au/directory or send us an enquiry using the contact form.






For more information or to see our BEFORE & AFTER photos of patients who have had body contouring surgery after weight loss, send an enquiry below or give us a call during Clinic Hours on (03) 8849 1444 Be sure to register for a FREE Event to gain more information on Plastic Surgery Options for after weight loss.


Weight loss is a journey, and we can help, from treating obesity to excess weight gain or massive weight loss.

Get YOUR body feeling and looking its best by accessing some of Australia’s most caring, helpful and skilled Nutritionists, Dieticians and Surgeons.

Contact New Body Specialists Today