Bariatric Nutrition: A Quick Overview

If you are looking into different medical interventions to help with weight loss, you may have come across information talking about bariatric nutrition. You may already be acquainted with this term and what it means, but if not, hopefully the following information will be helpful to you.

Today, we are going to talk about what this term means and how a bariatric nutrition consultation can help you maintain a healthy weight and ensure you provide your body with what it needs to function at its best.

What Is Bariatric Nutrition?

Bariatric nutrition refers to the special dietary needs of individuals who have undergone bariatric surgery or other weight loss procedures.

Some weight loss surgeries or procedures, like gastric sleeve surgery and endoscopic sleeve gastroplasty, are classified as “restrictive,” meaning they control the amount of food your stomach can hold during one meal. In addition to being restrictive, surgeries such as gastric bypass and duodenal switch also use malabsorptive methods to promote weight loss, meaning they prevent the body from absorbing all the calories, nutrients, and vitamins from the food that is ingested. Bariatric nutrition concentrates on ensuring the body receives all the necessary nutrients it needs to function properly while continuing to support a healthy weight.

The bariatric nutrition needs of an individual change throughout their weight loss journey. If they are undergoing a surgical weight loss procedure, their doctor may give them a special diet to follow that will shrink their liver and prepare the digestive system for the changes that are coming. After their weight loss surgery, they must follow very strict bariatric nutrition guidelines to allow their stomach and digestive tract to acclimate to the changes that have been made. They will not be able to go straight from a procedure that reduces the size of their stomach to eating solid food. They have to start with a clear liquid diet, work their way through purees, and soft foods, and then begin to incorporate solids.

Basic Guidelines For Weight Loss Procedure Patients

If you are undergoing endoscopic sleeve gastroplasty (ESG), you will not have as stringent guidelines for bariatric nutrition since there is no surgery involved. The timeline for your stomach to adjust to its new size is significantly shorter for EGS patients compared to individuals who undergo bariatric surgery.

  • After ESG, patients only have to follow a liquid diet for one week vs. surgical patients, who remain on liquids for at least two weeks;
  • ESG patients begin to eat pureed foods for about a week and then move on to soft foods for another week. By the fourth week, they can start eating solid foods and return to a more normal diet;
  • Surgery patients spend about two weeks on pureed foods and then move to soft foods for up to two to three months before beginning solid foods.

Eating After Bariatric Surgery Or ESG

Both ESG and surgical procedures result in a stomach with significantly reduced capacity, so it is important to eat foods in order of importance. This helps make sure that the body is getting the essential nutrients it needs.

  • Eat your recommended portion of protein first so you will not become too full;
  • Next, veggies and fruits;
  • The complex carbs with healthy fats;
  • Use the bariatric plate formula of 50% protein, 30% produce (fruits & veggies), and 20% complex carbs.


After bariatric surgery (especially gastric bypass and duodenal switch) and some non-surgical weight loss procedures, patients must take supplements for the rest of their lives to ensure they stay healthy. There are certain vitamins and minerals that are essential, and it is very important that your body gets them to prevent nutritional deficiencies. Since you can no longer eat enough to get all these important nutrients, patients take a number of supplements.

The supplements that you will need to take will be chosen based on your personal circumstances and the weight loss surgery or procedure you had. Your doctor and their team of weight loss professionals will create a customized dietary plan for you and tell you the supplements that you will need to take. Patients who have had bariatric surgery that include malabsorptive aspects will require more supplements than individuals whose procedures only involve restrictive techniques. Some of the most common supplements include:

  • A good multi-vitamin;
  • B12;
  • Folic Acid;
  • Calcium;
  • Vitamin D;
  • Thiamin;
  • Vitamin A.

Your weight loss doctor will ensure that you have an in-depth bariatric nutrition consultation with a registered dietician or nutritionist. During this consultation, you will learn what to expect for your diet after your weight loss procedure, and foods to avoid, and you will be provided with a list of supplements or vitamins that you will need going forward.

After you undergo weight loss surgery or a weight loss procedure, you will have to make lifelong adjustments to your diet and lifestyle to reach and maintain a healthy weight. Making wise dietary choices and following the bariatric nutrition guidelines provided to you by your doctor will ensure your body gets what it needs to function at its best.

If you are suffering from obesity and need help, contact Batash Endoscopic Weight Loss Center. We can help get your health back on track and provide you with a plan to reach your weight loss goals that have been created just for you with your circumstances in mind. You will have the benefit of a wide range of support options, and we will be with you every step of the way. We encourage you to take a look at some of our patient “before and after” results for inspiration. Set up a consultation today and learn more about endoscopic, non-surgical weight loss options that can help you.

Shopping Cart
Price Checker
Weight Loss Procedure Price Checker