Gastric Bypass Diet

After gastric bypass surgery, it is important to follow dietary guidelines to assure proper healing and adequate nutrition. Your newly created pouch needs to heal so you must sip fluids slowly and avoid getting overfull. Once your pouch has healed you need to continue to keep portion sizes small to maintain weight loss. You will progress through the following phases of diet after surgery:

  1. Clear liquid diet. Right after surgery, you will sip only clear liquids. Clear liquids include diluted apple juice, chicken or beef broth, sugar-free gelatin and artificially sweetened, non-carbonated beverages.
  2. Full liquid diet. Within a week of surgery, you will add full liquids to your intake. Full liquids include low-fat creamed soup, protein shakes, milk, yogurt and sugar-free pudding.
  3. Pureed diet. You will puree your foods for approximately two weeks. Your meals will be small and should focus on high-protein foods.
  4. Diet maintenance. By five to six weeks after surgery, you will incorporate foods with more texture. It is important to chew your foods thoroughly, avoiding tough meats, fibrous vegetables and breads. Your diet should include low-fat proteins, fruits and vegetables, healthy carbohydrates and heart-healthy fats.

You will need to supplement your diet with protein, vitamins and minerals. Supplemental requirements vary and are tailored to each individual's needs. Our dietitian will determine the supplements appropriate for you and provide a list of products from which to choose. You will need to have your blood checked several times in the first year and every year thereafter to make sure you are absorbing your nutrients adequately.

To register for a free informational seminar or to make an appointment for a consultation with a bariatric surgeon at Jeanes, click here or call 215-728-CARE (2273).


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