• December 7, 2020
  • Estexcellent
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Nutrition Intake After Bariatric Surgery

Nutrition Intake After Bariatric Surgery
The success of bariatric surgery depends on your post-development diet plan. Post- surgical nutrition has two goals that are listed below,

1- To ensure tissue healing and the preservation of the lean muscle mass, during excessive weight loss is the provision of adequate energy through bariatric surgery.

2- To ensure reaching satiety in a short amount of time and to avoid reflux while being cautious when consuming nutrients overall.

The nutrition program after bariatric surgery consists of 3 stages;

Clear Liquid Period (2 weeks)
Puree Period (2 weeks)
Solid Diet Period (Until life-time)
In order to protect the patient from possible metabolic harm after being discharged from the hospital, the patient starts their food consumption with a liquid diet after the final leakage test.

The liquid diet applied during the first 14 days post-operation, all the patient drinks should be in liquid form, dairy products, and carbonated drinks should not be consumed. A carbonated beverage is prohibited for life to patients who have undergone sleeve gastrectomy.

The reason for that is because carbonated drinks cause for stomach pouch to dilate resulting with incurable halitosis (bad breath). Open to free consumption liquids within the clear-liquid diet follow as: herbal tea, beef broth, chicken stock, organic vegetable juice and organic fruit juices, wishy-wash black tea and homemade sugar-free compote.

The determinant here is the weight of the patient before the surgery and the way that diet is followed by the patient after the surgery. Since the feeling of hunger is prevented by gastric sleeve surgery, the patient receives the calories as per their bodies’ need which is a small portion of food intake.

During the puree period, a diet program is provided so that it can be implemented for life. This diet plan is inclusive of 5 meals as 3 main meals and 2 snacks are given. Patients start the puree diet planned by a dietician starting the second week post – operation till the end of the fist month. This period is the most crucial in terms of which the food consumed must pass through the blender, milk and dairy products can be consumed without lactose.


Protein intake is a significant factor after sleeve gastrectomy operation. Adequate vitamin, mineral and protein intake plays an important role in this process and its continuation.

For patience who have undergone the operation, When the food consumption is not carefully planned and nutrition is not regulated as it should be it can cause: hair loss, nail breakage and non-growth problems and dryness of the skin. For the reasons listed, eggs, meals containing minced meat and protein powder are used in the pure phase. These should go through blender first before consumption. As of the 10th day, the protein powder that will be used until the 3rd month is also crucial for the benefit of the patient.

Additionally, other crucial element for planning nutrition intake of the patient is the solid – liquid separation aimed that is made for a life-time. There are 3 important reasons for this practice, which aims to put half an hour between each liquid and solid food and do avoid;

Protein deficiency,For obesity surgery

Enlargement of the stomach pouch
In the patient’s already restricted food intake, both liquid and solid should not be consumed together, The main reason is solid foods are combined together with liquids would enlarge the stomach by taking up more space in the stomach pouch, and solid and liquid foods combined will travel to intestines faster and sugar will be absorbed faster than normal.

Patients who have completed their puree period without any problems and that are entering the 1st month of solid period post-operation.

For the duration of the solid food consumption period, it must be planned to prevent being bloated within the high protein content and rich in nutrients consumption.

The foods prohibited for this period can be classified as all types of meat and chicken, bread and bread products, flour products, any type of rice. Prohibition of these nutrients is primarily to protect patients, rather than the calorie intake.

The rest of the prohibited foods such as flour products and rice, on the other hand, swell in the stomach and cause discomfort in the stomach pouch of the patient who is already full within small portions.The rest of the prohibited foods are flour products and rice,If they are consumed, they can cause swelling in the stomach and discomfort.

The rest of the prohibited foods such as flour products and rice, on the other hand, swell in the stomach and cause discomfort in the stomach pouch of the patient who is already full within small portions. If patients are to consume these types of foods during this period, they may experience pain and feeling of vomiting.

It is recommended to patients who complete and pass the first month on their diet should be informed on how to snack, and should be advised to consume them as a meal itself.

For example, the patient who wants to eat nuts should consume it in the form of a meal until he/she does not feel the sense of hunger, instead of eating it periodically.

As of the 3rd month, these prohibitions are lifted and the only remaining ones can be defined as the solid-liquid separation and carbonated beverages.

Patients who have completed their diet periods now can continue with their lives in a healthy way while being cautious about dieting rules for their life-time.

Between 3rd and 12th month post operation blood tests will be done by the patient in their home country, vitamins and minerals intakes are checked, nutritional and supplementary vitamins are given in case of any deficiency.

Nutrition Recommendations After Surgery

Please do not consume solid and liquid food at the same time
Water should be drank before and after 30 minutes of the day of the meal. The main reason is that liquid consumption during meals fills the small stomach pouch and can cause swelling of stomach thus can result with discomfort.
Although your stomach is decreased its physical form through surgery, frequent consumption of high-calorie foods can cause for stomach to increase its form.
Alcohol has contains high calories and boost your appetite, so it should not be consumed.
Food consumption should be done in a slowly, with small bites and chewing the food more.
If the food is not chewed enough, it can cause pain, discomfort and vomiting by obstructing the stomach.
Please do not continue eating and drinking when you don’t feel hungery because it can cause pressure in your stomach.
Please stop eating or drinking once you have a feeling of nausea. If you continue to do so, this will cause pain and discomfort.
It should be ensured that the patient has sufficient amount of protein intake on a regular basis.
The food consumption should base on proteins, vegetables and fruits.
The foods which are containing carbohydrates such as rice, pasta, bread, cake, cake should not be consumed.
To prevent dehydration, you should consume 1.5 – 2 Liters of water (Minimum 6-8 water cups a day).

Otherwise, lack of water consumption can lead to headache, dizziness, nausea, weakness, white wounds in the tongue, colored urine, etc… Remember that liquid consumption is essential for your kidney.
Avoid carbonated drinks for a life-time.
Do not chew on gum or use a straw after the 1st month of the operation. Otherwise, they will lead to feelings of being bloated and that can cause discomfort.
Remember, your meals can take up to only 150-200 ml of liquid post-operation. You may even feel full after when you take 2-3 tablespoons from your meal. Please consume too much food after no longer feeling hungry, otherwise, you may experience stomach spasms. After 6-9 months of your operation, your diet plan will guide you for a lifetime.
Exercise should be done on a daily basis starting from the first month with a light-medium tempo walk. This will help you to avoid any pain or discomfort after your meal.
After bariatric surgery treatments are related to patients’ commitment to the recommended nutritional program.
Nutrients That Should not be Consumed Post Operation

Legumes (dried beans, chickpeas, lentils, etc.) should not be consumed for an average of 6 months to prevent feeling bloated.


Coffee should not be consumed in the first month. It can be consumed as decaf after the first month. After the third month, coffee can be freely drank
Orange, tangerine, grapefruit, sour cherry, pomegranate, lemon fruit should not be consumed within the first month.
Spicy food should not be consumed for the first month
No food should be consumed too hot or too cold.
Sugar content should be kept away when consuming any type of foods
Pasta, rice, noodles, bulgur, bread and cereals should not be consumed in the first 6 months.
Grilled, oven, boiled or steamed meat should be preferred instead of cooking methods such as frying.
Nuts can be consumed in 3 months post operation within the amount recommended by a dietician. These should be consumed as a main meal.
Any food type with high content of pickled peppers should not be consumed for 3 months