The diet after a gastric sleeve surgery is very important for the success and results of the procedure. Patients are given a special nutritional program to help them adapt to this change in the digestive system and achieve healthy weight loss.

NUTRITION AFTER gastric sleeve surgery


The process after gastric sleeve surgery can be seen as a kind of adaptation process. In this process, the recovery period is managed smoothly with a special nutrition program for the patients. During this period, patients are gradually given different diets. With each diet, food from the previous diet can also be consumed. You can find details of these diets here:

CLEAR liquid diet


Patients on the clear liquid diet may only consume food in the form of clear liquids. The intake of other foods or liquids is prohibited. The clear liquid diet is used for the first 2 days after surgery.

This diet meets the patient’s fluid requirements and initiates bowel evacuation. Liquids that do not need to be digested are preferred for fluid intake. It is important that the fluid intake is very slow. 30 ml of liquid should be taken in small sips over a period of 15 minutes. The following liquids can be consumed as part of the clear liquid diet:

  • Water
  • Green tea
  • Lime
  • Sugar-free

Compote As this process takes place in the hospital, the doctor and other medical staff will provide the necessary guidance.

LIQUID DIET This is a diet of easily digestible liquids in addition to clear liquids. It is usually applied for 2 weeks. The aim here is to allow the digestive system to work slowly. Easily digestible liquids are therefore preferred. Some of the liquids that can be consumed in this context are as follows:

Lean meat broth – Lean chicken broth – Lactose-free milk – Freshly squeezed fruit juices, excluding citrus fruits – Fat-free buttermilk It is important to eat slowly again in this regard. Even if the diet consists exclusively of liquids, it is important that patients do not forget to drink water.

Puree diet


Patients who only consume liquids for the first 2 weeks also consume pureed food for the next 2 weeks. Depending on the patient’s general condition, the pureed diet can sometimes be extended for up to 3-4 weeks. At this point, the doctor will make the decision based on the patient’s general condition.

The food in the pureed diet must be completely pureed. It is important that no solid components are included and that the digestive system is not burdened. In addition, the food must not be too hot or too cold, but should be at a temperature that can be described as warm.

Patients should eat 2-3 teaspoons of puree with every meal during this period. If no symptoms occur, the amount of puree can be gradually increased. As soon as a feeling of fullness occurs, patients should stop eating completely.

A single meal takes about 30 minutes. Here too, the food should be eaten very slowly. If meals are eaten quickly or contain fat, vomiting may occur. To avoid such problems, patients should follow the instructions. Patients can eat the following foods on the puree diet:

  • Vegetable puree
  • Fruit puree
  • Fat-free cottage cheese
  • Soft-boiled egg
  • Tender fish
  • Blanch chicken meat

Soft food diet At the end of the first month, patients can switch to normal foods. Patients should initially prefer low-fat and soft foods and then switch to foods with few grains. Even if the normal diet is changed to normal food, high-calorie foods and citrus fruits should be avoided. The citrus fruit group can be consumed after the doctor’s approval, but high-calorie foods are strictly and indefinitely prohibited.

The following foods can be consumed in this process:

  • Fruit without peel
  • Red meat
  • Degassed and cooked legumes
  • Whole grain bread

Bread should only be started in limited quantities. It is also recommended not to consume pasta and its derivatives for about 6 months. However, it should be noted that each patient is different and these diet programs may vary from person to person.

The diet after gastric sleeve surgery is important for the success of the procedure and the patient’s psyche. If the diet is not followed, there will be various digestive problems, constant nausea, vomiting and stomach cramps.

All this has a negative effect on the patient’s psyche and their motivation to lose weight. Meals should be eaten slowly, even if the portions are small. Even if the portions are small, it is important to spread main meals over 30 minutes and snacks over 15 minutes, especially in the early stages. Sufficient water intake is another sensitive point of the diet.

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