Eating After Gastric Sleeve Surgery

How will a Gastric Sleeve affect your eating habits?

Many Australians are undergoing Weight Loss or Gastric Sleeve Surgery to overcome obesity issues and lose weight. This article covers tips for eating after Gastric Sleeve Surgery.

How will a Gastric Sleeve affect your eating habits

Why some people need a Gastric Band or Gastric Sleeve Surgery

Some people with certain genes and eating habits really struggle to lose weight after they become severely overweight or even morbidly obese. Anyone with a BMI of over 29.9/30 is considered obese and over 35 is considered Morbidly Obese.)

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Unfortunately, for some despite exercising and eating as healthily as they can no amount of dieting seems to help them lose excess weight.

They’ve also likely gotten to the stage that their intake capacity (stomach size) is able to consume far more calories than they could ever hope to burn off through activity or normal metabolism functions. No matter how much or how long they exercise.

Obesity is Dangerous but Gastric Surgery including Gastric Sleeve Operations can be life saving.

We all know that living with obesity is dangerous to health and longevity, but we also recognise that dieting adversely impacts our health and often leads to further weight gain when we go back to eating normally, due to extreme diets impacts on our organs and our metabolism.

Even if temporarily successful, extreme diets are unlikely to keep the weight off over a long period of time.  In such a scenario where your weight, BMI and your waist measurements are at a dangerous HIGH your; GP, Endocrinologist or Surgeon may recommend weight loss surgery.

The more common weightloss surgeries (known as Bariatric Surgery) include; the Gastric Sleeve, the Gastric Band, a Gastric Bypass procedure or a Lap Band procedure.

What is Gastric Sleeve Surgery?

what is gastric-sleeve-vertical
  • A gastric sleeve surgery involves reducing the size of your stomach
  • This helps you lose weight by limiting how much food you can comfortably and safely consume.
  • After your stomach is reduced, your appetite is also reduce. This can help you better control your eating or food cravings. But not totally, you’ll still need to do a lot of work and maintain a very different lifestyle to keep your results and get healthy. It just might give you a bit more help than if you were to attempt to do so without the surgery.
  • With a smaller stomach size, you’ll feel fuller, faster. This often helps reduce your food intake which in turn reduces your everyday calorie consumption.

Gastric Sleeve Surgery is an effective option for helping obese or severely overweight people to lose weight and overcome obesity.

Unlike the lap band, no adjustments are needed with a Gastric Sleeve Procedure.

Furthermore, it seems that you are able to lose more weight with a Gastric Sleeve procedure in comparison to a Lap Band or a Gastric Bypass.

Pre-operative Gastric Sleeve Diet – preparing for surgery

If you choose to have this surgery, your Specialist Bariatric Surgeon (Obesity Surgery Specialist) will give you details. They will also advise you of the potential complications and risks of having this surgery. Furthermore, they will explain what you should be eating after your Gastric Sleeve procedure. In other words, you will have special dietary measures you’ll need to take to maintain results and overall health.

Your Bariatric Surgeon will likely advise you to undertake special eating habits to shrink the size of your liver before surgery. That’s because an enlarged liver can increase the complications in your surgery.  Eating differently BEFORE your Gastric Sleeve Surgery not only helps to leave you healthier, it also helps you prepare for an altered diet that you will need to adhere to AFTER your gastric surgery procedure.


In your pre-surgery and post-surgery Gastric Band eating plan, it will likely state that you should consume more protein and less carbohydrates than your normal eating regime.

Your pre and post-surgery eating plan will also state that you should;

  • Eliminate added sugars and avoid drinking soft drinks. This change alone can help you lose a bit of weight and re-adjust your appetite.
  • Drink lots of liquids and keep hydrated. Plain water or water with real lemon juice are great options
  • You may need to undergo a strictly liquid diet at least two days prior to your surgery day.

Your Bariatric Surgeon and Care Team will give you specific instructions for the months, weeks and days before your surgery. Planning and adapting to your gastric sleeve can take more time and energy than you may initially realise. So if you’re considering this option, be sure to book a consultation with your chosen Bariatric Surgeon as soon as you know you’re wanting the surgery to best prepare yourself for a Gastric Sleeve.

Eating after Gastric Sleeve Surgery – a week by week plan

In the time following your gastric sleeve surgery, you’ll need to take utmost care of your eating routines and follow YOUR Surgeon’s specific advice. Most Surgeons will also link you up with a nutritional counsellor.

What can you eat?

The information below is ONLY of a general nature. It is NOT a substitute for the medical information and pre and post-op recommendations given to you by your GP and your Gastric Surgeon. 

In general, if you’re about to have Gastric Sleeve surgery, here’s what to expect (with modifications as per your Surgeon or particular health needs).

Week 1 Intake Clear Liquids Only

Gastric Sleeve Surgery Liquids
  • In the first week after your gastric sleeve surgery, you may be told to take in ONLY clear liquids such as; water, fresh juices, soups and broths.
  • Avoid any carbonated beverages or other drinks with added sugars.
  • Take small sips and consume these liquids in very slowly.
  • You WON’T be able to eat fruits and vegetables although you might be able to squeeze fresh fruit juice into your water. Ask your Surgeon (no pulp though typically)!
  • Decaffeinated tea and coffee are usually okay soon after Surgery
  • Check with your Surgeon as they might NOT permit certain things for you or in relation to your specific procedure.
  • Once you’re readily able to tolerate liquids, your Surgeon will advise you when you can advance to the next stage of eating changes (pureed foods).

Week 2 Pureed Foods

healthy-nutrition gastric sleeve diet
  • During the second week, you may typically take in foods in their pureed form.
  • These may include mashed potatoes, low-fat cottage cheese, sugar-free yogurt, soup with blendered vegetables and hot watery oatmeal.
  • Ask what vegetable purees you can and cannot have.
  • You might be tempted to overdo it – but don’t. It’s not worth the risk and can get very uncomfortable very quickly if you eat the wrong foods, or too much of the right ones, after surgery.

Week 3 Soft Foods and Protein Shakes

  • In week 3, you might be able take protein shakes once a day.
  • You might also be able 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.
  • Avoid vegetables that are fibrous, for example; broccoli, celery and asparagus.

Week 4 Some Solid Meals

  • In week 4, your eating regime may begin to allow you to eat some ‘solid’ meals.
  • You can typically begin eating restricted fruits, sweet potatoes, baked potatoes, cereals, fish and chicken.
  • Avoid eating fried foods, lollies, whole milk and nuts – these are not easy to digest.
  • During week 5, you may even have one or two healthy snacks in-between your normal meal times.
  • A hard-boiled egg, hummus, bananas or soft rice crackers might be okay options for you (ask your Surgeon and Nutritionist for details).

The most important thing to keep in mind after Gastric Band surgery is that your meals should be nutrient-dense (nutritionally valuable) as well as remain sparse in calories. In other words, good foods, not junk foods!

Related: Learn about Body Lift Surgery after Massive Weightloss

Dr Patrick Briggs – Specialist Plastic Surgeon, talks about Body Lift Surgery after Massive Weightloss or Bariatric Surgery

How Long Before I See Weight Loss Results after Gastric Sleeve Surgery?

In the months AFTER your surgery, you’ll have specific eating recommendations from your Surgical team. It’s also important you monitor your eating regime and portion control.

It is often reported that patients can start seeing great results just a few weeks after their gastric surgery procedures.

On average, patients can lose around 60% of their pre-surgery weight.


What about your skin after Gastric Sleeve surgery – will it bounce back?

Gastric sleeve surgery and other bariatric surgeries often leave you with baggy or Redundant Skin.  You can’t exercise skin, it’s overstretched and will only tighten up to a certain point. So the skin, along with any stubborn stores of fat after the major weight is lost, may still end up needing to be surgically removed. Liposuction and tummy tuck surgeries (including Belt Lipectomy Procedures) are quite common after bariatric surgery procedures.

If you need your redundant skin removed, Dr Briggs offers many various Body Contouring procedures such as; Tummy Tucks, Belt Lipectomy and Upper Arm Reduction/Arm Lift and Thigh Reduction surgeries.

If after you have adopted your new healthy lifestyle and have done nearly everything you can to see results – and you remain unhappy with the body shape outcome after approximately 18 months to up to 4 years, you might also want to consider Body Contouring and Liposuction options with  Specialist Plastic Surgeon Dr Patrick Briggs

Dr Briggs is a Specialist Plastic surgeon who focuses on patients who have lost massive amounts of weight via Gastric Sleeve or Gastric Banding procedures.  Furthermore, he helps people who have lost a lot of weight through major lifestyle changes alone. Yet not everyone succeeds in overcoming obesity permanently without surgical assistance.

Dr Briggs also offers Face Lifts, Tummy Tuck/Abdominoplasty procedures, Breast Lifts, Breast Reductions and Arm Reductions/Thigh Reductions as well as Belt Lipectomy (Circumferential Abdominoplasty) procedures to help bring the body back into its normal contours.

If you’ve already lost the weight after gastric surgery or lifestyle changes (or both) and want to reduce redundant skin, phone us today on (03) 8849 1444 to schedule a consultation with Dr Briggs in Hawthorn.

For more information on Bariatric Surgery and Surgeons in Australia who can perform Gastric Sleeve or related Bariatric procedures, visit or send us an enquiry form below.

Dr Patrick Briggs Specialist Plastic Surgeon

Dr Patrick Briggs Melbourne Plastic Surgeon – FRCS (Plas)

Specialist Plastic and Cosmetic Surgery Clinic in Melbourne

Dr Patrick Briggs is a Specialist Plastic and Cosmetic Surgeon. Both he and his team are dedicated to excellence in patient care and are committed to treating each and every patient with respect and privacy.

Not only does he offer high-quality results he also offers natural-looking plastic and cosmetic surgery results. Furthermore, he is experienced in Breast, Body and Face Surgery having performed over 4500 Surgeries in private practice. 

Dr Patrick Briggs is an expert in breast, face and body surgery for men and women.

How can we help?

Dr Briggs’ Patient Coordinators take pleasure in assisting you with any questions when considering a plastic surgery procedure. Please call the Hawthorn East clinic in Melbourne between 8 am – 6 pm on Weekdays.

Phone 1300 264 811Email us or Book a free 15-minute Call with Dr Patrick Briggs’s team.

What Next?

Want more information about your Procedure?

  • For more information about pricing and payment methods, please visit our page on Surgery Payment options.
  • Talk to our Patient Care Team from 8 am to 6 pm Monday to Friday on 1300 264 811.
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What to Bring to Your Consultation

  • If you like, please bring a friend or relative to help discuss the information and your choices.
  • Take a lot of notes and thoroughly examine the documents your surgeon provides.
  • You may need to undress so it’s a good idea to wear simple clothes.

How to Book a Consultation

  • Dr Briggs’ Consultation fee is $300.
  • A referral from your GP or your specialist is helpful but not essential. However,
  • To claim any Medicare or Health Insurance you will need a referral.
  • Please contact the Patient Care Team at Coco Ruby Plastic Surgery today to book your consultation.

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