Gastric Sleeve Surgery Diet Before Surgery

Overview Of The Gastric Sleeve Pre

Pre-op diet before your VSG | Gastric Sleeve Surgery | Questions and Answers

For most people undergoing gastric sleeve surgery, the amount of time you will need to be on the pre-op diet depends on your BMI. Check BMI requirements to see how long your pre-op diet will take.

The purpose of this diet is to help shrink your liver prior to surgery by depleting stored glycogen.

  • 1 2 protein shakes per day -You may purchase these in any health food store or many grocery stores. Please be sure it contains at least 20 grams of protein per serving. Sugar should be 5 grams or less.

  • You can eat as many raw or cooked non-starchy vegetables as you want

  • Two 4 7 ounce servings of lean protein

  • 1 2 servings of healthy fat

  • You can add ½ cup of frozen berries or ½ banana to your protein shake

  • You can make your shake with unsweetened vanilla almond milk or unsweetened coconut milk

  • NO bread, rice, pasta, refined grains, tortillas, sauces with sugar, and no dairy

  • NO alcohol, marijuana, or THC products two weeks prior to surgery. These increase bleeding risk.

  • Weight Loss Magic Soup Recipe Great Vegetable Soup

  • STOP nicotine products 2 months before surgery. Ask your primary care provider for Chantix and Wellbutrin. These two medications taken together are highly effective in stopping nicotine cravings.

  • OPTIONAL: Start taking a probiotic 6 weeks prior to surgery or as soon as possible. You want one that has a minimum of 50 billion units and the more strains the more effective and discontinue 2 weeks before surgery.

Hypoglycemia And Dumping Syndrome

Diagnosis of post BS hypoglycemia requires the compresence of neuro-glycopenic symptoms , blood glucose concentration less than 3.0 mmol/L , and symptoms relief by carbohydrates, according to the Whipples triad . Available provocation tests are the oral glucose tolerance test and the mixed meal tolerance test. Although the latest test should be considered the best provocative test to diagnose post-prandial reactive hypoglycemia, there is no currently an accepted standard meal test.

The terms hypoglycemia and late dumping syndrome have often been used interchangeably. Hypoglycemia after BS is exclusively post-prandial and many bariatric patients have postprandial autonomic symptoms, such as lightheadedness, palpitations and fatigue, which may represent manifestations of the dumping syndrome but also overlap significantly with the autonomic symptoms of hypoglycemia. To differentiate between symptoms related to post-RYGB hypoglycemia or late dumping, we can use the time of onset from surgery, with dumping usually developing shortly after RYGB and hypoglycemia generally manifesting later . In a cross-sectional study with and without documented post-RYGB hypoglycemia, it was demonstrated that a history of dumping syndrome did not increase the likelihood of hypoglycemia during meal studies , suggesting that dumping and hypoglycemia may share the common underlying mechanism , but they manifest different aspects of deregulated gut physiology.

Gastric Sleeve Diet: In Conclusion

As shown above, gastric sleeve surgery is one of the safest and most effective weight loss surgeries out there. That said, its important to note that it is not a quick fix nor is it a solution. The gastric sleeve diet is more of a starting point. Its up to you to strictly follow the gastric sleeve diet, along with building other healthy lifestyle habits, to enjoy long-term weight loss and health benefits.

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Reason #: Decrease Liver Size

Reason number three is, in my opinion, the most important one. As you gained weight your liver grew with you. You get was its called a Fatty Liver.

The problem with having a large liver during bariatric surgery is that your surgeon might not be able to complete the operation.

Let me explain.

The stomach is located under the liver. During surgery, your bariatric surgeon will elevate the liver to get to the stomach so he can make it smaller so you can lose weight.

If your liver is excessively enlarged, the surgeon might not be able to get to the stomach. I saw two patients during my residency at the University of Florida in Gainesville prior to implementing the liquid diet that the surgery had to be aborted due to a large liver.

It is scientifically proven that just 2 weeks on a Low Fat, Low Carbs, High Protein, Low-Calorie diet will decrease your liver size by at least 25 percent.

So, dont take the chance. Stick to the diet and your surgery most likely will be completed as planned.

Diet Before And After Gastric Sleeve Surgery

fruit vegetable and chicken diet before and after

Diet Before And After Gastric Sleeve Surgery : Many women have an impression that gastric sleeve surgery is a magic bullet to eliminate obesity. However, in reality, any bariatric surgery procedure will only facilitate your weight loss journey, while its success or failure lies almost entirely in your own hands. Your gastric sleeve before and after diet is the needle-moving component in your endeavor to gain permanent freedom from obesity.

Your bariatric surgeon and their nutritionist team will prepare a detailed gastric sleeve diet plan for you. They will also provide you the long-term dietary guidelines and certain dos and donts that will help you achieve and maintain your weight loss goals in a safe and sustainable manner. As long as you remain committed to following your gastric sleeve before and after dietary instructions, you are likely to attain your ideal body weight and reclaim your health and quality of life.

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Gastric Sleeve Diet Restrictions

Going from eating a lot to eating very little is the main concept of a gastric sleeve diet. Before surgery, pre-op patients are put on a liquid diet fourteen days before their procedure. They are also told to skip certain vices and follow their restrictive diet to the core.

Once the patients have gone under the knife, they are put on a clear liquid diet for the first week. This means they can only consume water, green tea, light broths, sugar-free drinks and the like.

The liquid diet goes on for two more weeks. Come Week 4, patients are now slowly introducing solid yet soft foods into their diet. Steamed fish, scrambled eggs, unsweetened applesauce are some of the best examples of food consumed during this stage. Red meat and foods high in fat and sugar are prohibited.

After the first four weeks, patients are now free to eat solid foods again. However, whatever they consume must always be low in fat, low in carbohydrates, and high in proteins. Other nutrients such as fiber and omega 3 fatty acids can also aid in maintaining better health. Furthermore, vitamins and dietary minerals should be part of their daily meals as well as regular exercise. In fact, exercise plays a major role in keeping the weight off.

Diet Before Your Surgery

Losing weight before surgery helps reduce the amount of fat in and around your liver and abdomen. This may allow you to have a laparoscopy rather than open surgery. Laparoscopic surgery is less invasive, requires much less recovery time, and is easier on your body.

Losing weight prior to surgery not only keeps you safer during the procedure, but it also helps train you for a new way of eating.

Your exact eating plan and pre-op weight loss goal will be determined by your healthcare provider and likely with the help of a registered dietitian.

Your eating plan may begin as soon as youre cleared for the procedure. If sufficient weight loss doesnt occur, the procedure may be postponed or canceled. For this reason, you should start the diet plan as soon as you can.

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Three Days Prior To Surgery

Time of meal is irrelevant in this stage and items such as Jell-O, broth, Slim-Fast, Atkins Low carb shakes, protein powder, popsicles, water, caffeine-free tea, sugar-free juice, sports drinks and the like are acceptable. You will need to stop eating or drinking by midnight the night before the surgery.

Related: Gastric Sleeve Complications, Risks

Avoiding dehydration is an essential part of making sure that you are healthy for the surgery. You will want to be sure that you are getting enough liquid into your body. The 48-64 ounces of water or another low calorie, caffeine-free, sugar-free, and non-carbonated liquid would do to help you get the best condition for your body before the surgery.

There are some liquids that should be avoided such as high sugar liquids, fruit juices, some sports drinks, alcoholic beverages, whole or 2% milk, soda, coffee, and caffeinated tea.

A Simple Gastric Sleeve Pre

Bariatric Surgery Liquid Diet | Gastric Bypass | Pre-Op

Your dietitian may have a pre-surgery protocol, but if you need one we have turnkey options that you can order today. They include everything you need in the perfect amounts so you dont have to do any shopping or guesswork no matter how long you need to be on the diet.

All you need to do is order the bundle that corresponds to your required pre-op diet duration, follow the instructions and youll be ready for surgery!

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What Should I Eat Before Gastric Sleeve Surgery

The pre-op diet is your food-consumption plan for the period leading up to your gastric sleeve procedure. Your diet is critical to the surgerys success for three reasons:

  • It makes the procedure safer and easier. The pre-op diet helps reduce fatty deposits around the liver, which improves surgical access to the stomach.
  • It lowers the risk of complications. Obesity increases the risk of medical complications during and after surgery weight loss can counteract that risk.
  • It starts you on the habits youll need to make a lifelong commitment to weight control. Youll gain the confidence that comes with settings goals and achieving them.

In many cases, you should begin your pre-op diet for a gastric sleeve surgery three weeks before your procedure. Please talk to your program dietician or coordinator for more details on when to begin your diet.

Gastric Sleeve Diet: Post

Congratulations! Youve made it through your surgery and your on your way to a new, healthy lifestyle.

In any event, you still have a long road ahead. The post-op gastric sleeve diet is certainly no walk in the park. However, its imperative you follow the surgeons instructions during this phase.

Cheating on your post-op gastric sleeve diet can cause a number of adverse effects including diarrhea, constipation, dehydration, nausea, vomiting, or even gastric leak.

Below is what your post-op eating regimen will typically look like.

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Why Is A Liquid Diet Before Bariatric Surgery Important

One of the most important reasons for strictly following a liquid diet is simply because it is easier and safer to perform bariatric surgery on patients with fewer barriers to the stomach. Many obese patients have a fatty liver, meaning the liver has expanded in size as they gained excessive weight.

Because the liver sits atop the stomach, surgeons may not be able to access the stomach and cancel surgery in these situations. A liquid diet in the weeks before bariatric surgery is known to decrease the size of fatty livers, helping it to be a successful surgery.

Furthermore, the liquid diet that your surgeon or dietitian assigns to you will include many protein shakes. During periods of rapid weight loss, healthy muscle mass breaks down as well. Following your liquid diet will ensure that you are consuming at least 60 grams of protein a day.

Nutritional Assessment Before Bs

RNY Gastric Bypass Nutrition

Assessment of nutritional status of candidates to BS before the operation plays an important role in the post-surgical management. During the last few years, several studies demonstrated that patients with severe obesity often display micronutrient deficiencies when compared to normal weight controls. In 2008, Asheim et al. analyzed the vitamin status of 110 patients affected by severe obesity as compared with 58 normal weight subjects: patients with obesity had significantly lower concentrations of vitamins A, B6, C, 25-hydroxyvitamin D, and lipid-standardized vitamin E . Similarly, Van Rutte et al. demonstrated in 200 patients affected by severe obesity that 38% of them had low serum iron, 24% had low serum folate, 11% had low serum vit. B12 and 81% had hypovitaminosis D . Finally, Peterson et al. demonstrated a frank deficiency of vitamin D and iron in 71.4% and 36.2% of 58 BS candidates .

MDs in patients with severe obesity could be attributed to a poor-quality, non-varied, high-calorie and high-fat diet. For example, excessive simple sugar, milk products or fats could lead to a deficit of vitamin B1 . Moreover, iron status could be affected by adipose tissue inflammation and increased expression of the systemic iron regulatory protein hepcidin . Lastly, the increased adipose mass could act as a storage site for highly lipophilic molecules, such as vitamin D, and this could explain the difference in 25D levels between people with or without obesity .

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Helpful Tips For The Bariatric Pre

Published In:Nutrition

All patients must adhere to a two-week bariatric pre-op liquid diet no matter the type of bariatric procedure being performed. The thought of drinking only liquids for two weeks might sound horrible and intimidating. But in this blog, we hope to educate you on the purpose of the liquid diet, the dangers of not adhering to the diet, and how to follow the diet. So grab your drink and take a seat lets dive in!

As a bariatric surgeon, we understand how difficult it can be to even think about giving up solid foods in preparation for weight loss surgery. We have seen many patients struggle during these two weeks. However, despite what you may think, this is not to torture you! In fact, we require patients to only consume liquids before surgery to limit the procedures risk.

Bariatric Full Liquid Diet Suggestions

  • During this period, you need to eat three very small meals a day. Initially 1 to 2 tablespoons of food may be all your body is able to tolerate. Stop if you feel a full pressure. Do not take an extra bite.
  • Take your time and eat slowly.
  • Walking can help food move out of stomach pouch.
  • Overall goal is to get 100 grams of protein and 100 grams carbohydrate each day, but you are doing well to get over 50-60gms of protein and carbs at this stage. Drinking 3 cups double milk each day provides 48 grams protein and 72 grams carbohydrate. These can be consumed hot, cold or flavored in a variety of ways.
  • If you feel gassy, bloated or have loose stools on this diet, it may be lactose intolerance. This is generally temporary. Take Lactase enzyme tablets or eat yogurt or try soy milk or lactose-free milk to alleviate symptoms.
  • Constipation is not uncommon on this diet. Add Benefiber, FiberSure or Metamucil-Smooth to each double milk to promote regularity.

Keep walking to promote regularity, as well. Walk at least 30 minutes/day. If you lift weights, you need to lift less than 10 lbs and avoid any abdominal exercises.

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What To Eat Before Your Gastric Sleeve Surgery

The 24 to 48 hours before gastric sleeve surgery will often involve some form of liquid fasting diet. Patients should only have approved clear liquids, avoiding all solid foods. This ensures no solid masses in the stomach during surgery, which makes the procedure much easier and safer to perform.

Additional pre-op instructions will be provided to increase the chances of success and reduce the risk of post-surgical complications.

Role Of Diet In Gastric Bypass


Before undergoing gastric bypass surgery, you must first qualify for the surgery and understand the risks and benefits involved.

Adults eligible for this surgery are typically more than 100 pounds overweight or have a body mass index over 35.

You may also be eligible if your BMI is between 30 and 35, your health is at risk due to your weight, and making lifestyle changes hasnt led to weight loss, according to the American Society for Metabolic and Bariatric Surgery .

To be a viable candidate, you should also be ready to re-learn your dietary habits. New dietary habits can help ensure the surgery has positive and lifelong effects.

Before your surgery, you need to make plans for a special diet to follow both pre- and post-surgery.

The pre-surgery diet is geared toward reducing the amount of fat in and around your liver. This reduces the risk of complications during the surgery.

After the surgery, your doctor will tailor the general diet guidelines for you. The post-surgery diet usually consists of several weekly phases. It helps you recover, meet the needs of your now smaller stomach, and gain healthier eating habits.

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Possible Side Effects Of The Clear

You may experience hunger cramps, weakness, tiredness, headaches, mood changes, and stomach problems due to lowering the intake of calories and carbohydrates. These symptoms are normal and it may take a few days to get adjusted to. Make sure you consume at least 64 oz of liquids per day to offset these indications.

Find Delicious Diet Options

Just because you are being placed on a gastric sleeve pre-op liquid diet doesnt mean you have to consume gruel. Ask your bariatric surgeon about smoothies made with your favorite fruits, vegetables, and protein powders. Dont be afraid to try new things. You may find you develop a craving for your liquid meals during the pre-op phase.

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Medications Before Gastric Sleeve Surgery

You may need to modify your medications and their dosages prior to surgery.

This is absolutely, unequivocally something that you need to discuss with your surgeon and primary care physician. No amount of reading online will give you an adequate answer.

You are a unique individual with specific health and medication needs and only medical professionals who are fully aware of your health and needs can make that call. Also, dont change anything about your medications without the guidance of your medical team.

What we can do is tell you to ask them, and you should!

Talk to your surgeon about your medications because you may need to modify your dosages in the days leading up to surgery. Thats something only they can help you with.

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