Bariatric Nutrition and Diet

Bariatric Nutrition and Diet
5 March, 2017 Itzel

Bariatric Nutrition and Diet

 After bariatric surgery you will need to make changes to your eating.

The size of your stomach pouch is about 8 ounce size. At first your capacity will be somewhat limited, so be patient. You may find that 4 to 6 oz of food fill you up. This is expected. You may also find that you are able to eat more of one type of food than another. That is okay, too. Over time, your food pouch will stretch a little more. By six months after surgery, it may stretch to10 ounces.

The surgery is designed to restrict solids, not liquids, so drinking liquids will not make you feel full. You also should not drink liquids during or immediately after meals as they will flush food through the reduced stomach size, which means you will not get the prolonged feeling of satiety needed to help you eat less; however, staying hydrated and drinking lots of water throughout the day is important. You will also need to learn to eat slowly and chew your food very thoroughly.

One of the changes that patients often comment about is the concept of wasting food. After surgery your eyes and head still work the same way as they did before. However, because of the new stomach pouch, you will be satisfied with much less. It is critical that you listen to your body’s signals of fullness and not to your eyes that see food left on your plate.


Resultado de imagen para saludableIt is recommended that you eat only three small meals a day. The primary source of nutrition should be protein. 70 to 75% of all calories consumed should be protein based (eggs, fish, meat, etc). Carbohydrates (bread, potatoes, etc.) should make up only 10 to 20%, and fats (butter, cheese, etc.) only 5 to 15% of the calories that you eat. A diet consisting of 600 to 800 calories and 75 grams of protein should be the goal for the first 6 months. Protein drinks can be helpful to fulfill your protein requirements. There are many to choose from. Look for protein drinks that are low calorie and low sugar and that have a good taste.

You will need to make good food choices and learn to avoid problem foods, such as high-fiber, high-fat, and dry foods, since these are more difficult for the small stomach pouch to digest. Good food choices include fruit and vegetables, lean protein, some bread and cereal, and some dairy products.



  • Bread products
  • Cow milk products
  • Pasta products
  • Fatty foods and fried foods
  • Candy, chocolate, any sugary foods and beverages
  • Carbonated beverages
  • Bran cereal and other bran products
  • Corn, whole beans, and peas
  • Dried fruits and skins of fresh fruit
  • Coconut


It is difficult to get all of the essential vitamins and minerals your body needs from the small volume which you will be allowed to eat, so it is important to take vitamin and mineral supplements daily. Not all products are created equal. Bariatric surgery patients not only require higher amounts of vitamins and minerals, but it is essential that they are in the proper forms.


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