Pre Op Diet For Sleeve Surgery – A pre-bariatric surgery diet is one of the things expected before weight loss surgery. As a nutritionist, I often hear the following concerns:
Today I want to answer these questions. I will also give you a sample recipe at the end of this article that you may find useful.
Pre Op Diet For Sleeve Surgery

Disclaimer: This is intended for educational purposes only. Please ask all questions to your doctor. This article contains affiliate links, which means I will earn a small amount if you decide to buy the ideas.
The Complete Gastric Sleeve Pre Op Diet Guide
The goal of the pre-bariatric surgery diet is to help the liver shrink. This helps the surgeon to see better during surgery and reduce complications. The diet usually takes 7 to 14 days before surgery.
Most surgery centers require patients to drink only low-calorie, sugar-free, and soft drinks along with approved healthy foods.
During this phase of the pre-liquid diet, I usually recommend consuming 64 fluid ounces in addition to the protein supplement. Make sure half of your water comes from fresh water. I encourage my clients to focus on water, broth, fruit juices, and herbal teas during this time, and less on medications that contain artificial sweeteners.
Protein supplements are used in pre-bariatric surgery to protect the muscles. But when you’re looking for protein supplements, the choices can be overwhelming. It seems like there’s a new protein supplement coming out all the time. My suggestion is to start using the protein you take after bariatric surgery.
Gastric Sleeve Meal Plan
The American Society for Metabolic and Bariatric Surgery recommends using a protein drink containing whey protein isolate. Your body will absorb this type of protein better. However, egg whites, casein, milk and soy are also sources of highly absorbable protein. Look at your protein ingredients list and make sure one of these protein sources is listed. I recommend that your protein supplement contain at least 20 grams of protein per 8 ounces.
It is also important to reduce fat and sugar instead of protein foods. My recommendation is to choose a protein supplement with less than 5 grams of sugar and less than 3 grams of fat.
Each protein drink contains a different amount of protein. As mentioned before, I recommend choosing a protein drink with at least 20 grams of protein per 8 ounces. If you choose protein shakes that are low in protein, you may need to take extra supplements to meet your protein goals.

Your protein goals will be determined by your diet. Most surgery centers recommend eating 60-100 grams of protein per day. The amount varies depending on your weight, height, gender and activity level. Your nutritionist will help you figure this out. But having 70-90 grams of protein a day is a good bet.
Gastric Sleeve Recipes — Pre Op Meal Plans
With all this in mind, most people consume 3-5 protein supplements per day on their pre-bariatric diet.
Most programs do not require calorie counting in the pre-bariatric surgery phase. However, if you consume 3 to 5 servings of protein daily, you can consume 500 to 800 calories per day.
My previous clients shared with me that the first three days were the hardest. But knowing that they had goals in mind encouraged them. I hope you can do the same. Here are some tips that other people who have “been there” have shared with me.
The purpose of the preoperative liquid diet is to help the liver decrease. Your liver is usually surrounded by glycogen. Glycogen is your body’s fuel source. When your body doesn’t get enough calories from food, it starts using glycogen stores as a fuel source. Glycogen is broken down into sugar for your cells to use for energy.
Gastric Bypass Pre Op Diet
By eating a very low calorie diet before surgery, you are forcing your body to use glycogen as an energy source. When glycogen is broken down, your liver slows down. This allows the surgeon to see more of your abdomen in the operating room and perform the operation safely. Trust me, you want to have a good idea of what your doctor is doing.
In short, if you cheat on your pre-operative fluid intake, you are putting your health at risk and possibly increasing your recovery time or even death after surgery.
That said, it’s important to communicate with your doctor’s team if you haven’t followed your preoperative plan. Depending on what you eat, it may or may not stop the surgery.

Make a plan. I recommend that you prepare these recipes ahead of time to help you feel more confident when you start eating these foods.
Boost Your Energy During The Pre Op Diet Of Your Gastric Sleeve Surgery
It also helps to know how much you drink at each hour of the day to stay healthy. Check out the meal plan below to help you plan your day.
I also encourage you to talk to others who have experienced this. Learning about other people’s experiences can help you feel confident in your ability to complete this step before surgery.
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What Is The Bariatric Surgery Diet?
Take advantage of my bariatric nutrition plan and nutritional support to gain confidence in your diet and support your post-surgery journey.
Over the past seven years, I have worked with more than a thousand pre-surgery patients to help them live a normal, different life. Following a special diet for bariatric surgery and working with a nutritionist is very common before bariatric surgery. . But what if you are a vegetarian? How can you stay on a diet and still meet your pre-op goals?
The first reason is that losing weight and/or consulting with a nutritionist may require your health insurance company to pay for your surgery. We have known for years that there is little evidence regarding the benefits of weight loss before bariatric surgery. Unfortunately, this does not prevent all insurance companies from requiring this before you undergo bariatric surgery.
A bariatric surgery pre-op diet that your doctor helps you follow will help you lose weight before surgery. This is especially important to you if your insurance company wants it.
Peri Operative Antibiotics Acutely And Significantly Impact Intestinal Microbiota Following Bariatric Surgery
The amount of weight you need to lose before bariatric surgery varies. This depends on your bariatric program, your health insurance, and your needs (for example, some equipment used in surgery may have weight limits).
The second reason you need to eat before surgery is bariatric surgery and liver decompensation. Almost all bariatric programs require preoperative liver reduction. A liver-reducing diet is a low-calorie, low-fat diet that helps reduce liver glycogen (food storage). This reduction in glycogen helps to slow down the growth of the liver and thus makes it easier for the doctor to work.
Generally, there are two parts to a bariatric surgery diet. There is a weight loss phase before surgery and there is often a lot of time before you start eating a weight loss diet if you are working with a diet or bariatric program.
Your first visit with a bariatric nutritionist usually includes a whole food test to determine what foods you are eating. After sharing this information, your nutritionist will help you implement nutritional strategies to fit your diet that will help you thrive after bariatric surgery.
What To Expect
These initial visits are usually 2 to 6 months apart, depending on the bariatric surgery center and health plan.
During this time, you should adopt healthy habits that will help you after bariatric surgery.
Your weight loss diet usually starts two weeks before the date of your bariatric surgery. This is because it takes about two weeks for the glycogen in the liver to break down, which slows down the growth of the liver.
To reduce glycogen stores, you need to follow a low-fat diet. Reducing your intake by 50 grams per day is ideal for achieving this goal, although your bariatric program’s recommendations may differ.
Pre Bariatric Surgery Liquid Diet
Sometimes it is recommended to use meal replacements with protein shakes, but it is not recommended to use meal replacements with protein shakes. You can follow a diet to reduce liver damage by using regular meals with whole foods and lean protein and it doesn’t mean you have to “avoid all carbs.”
Your bariatric center may require you to use protein shakes and nutritional supplements as part of your liver detoxification plan. Using meal replacements and protein shakes can make your bariatric preoperative diet easier to follow. I encourage you to use it as a part
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