Pre And Post Bariatric Surgery Diet Plan

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bariatric diet infographic

Bariatric surgery is a big step in the right direction for substantial weight loss. However, surgery alone isn’t enough to ensure long-term success. Adhering to a proper bariatric diet plan before and after your surgery is key to an optimal patient outcome.

Your Baptist Health surgeon will discuss with you the particulars of your individualized pre-op and post-op diet. But the guidelines below will give you a good idea of what to expect prior to and following bariatric surgery.

Pre-Op Bariatric Diet

The purpose of the pre-op diet is to reduce fat around the liver so that your surgeon can see and navigate your anatomy during the operation. Should you decide to violate the diet plan, surgery may be delayed or canceled intra-operatively (during the procedure).

Now isn’t the time to binge or indulge in one last hurrah. You’ve likely waited six months to a year to be approved for surgery, and failing to comply with your pre-op diet will set you back. It’s just not worth it in the long run.

The typical bariatric pre-op diet is high in protein and low in fat and carbohydrates. You’ll consume 70 to 120 grams of protein a day. Pre-bariatric surgery diet plans range from 800 to 1,200 calories a day and will likely include these directions and foods:

  • If you smoke, quit now.
  • Avoid alcoholic beverages.
  • No sugary beverages
  • No caffeinated or carbonated beverages
  • Don’t binge eat.
  • Sip beverages and liquids slowly.
  • Don’t drink with meals.
  • Wait at least 30 minutes after a meal before consuming any liquid.
  • Protein and meal replacement shakes will comprise the bulk of your pre-op diet.
  • Soup broth with no solids may be consumed.
  • Vegetable juice, but not fruit juice, is permitted.
  • Extremely thin cream of wheat or cream of rice can be eaten.
  • If your surgeon or practitioner approves, one or two daily servings of lean meat or vegetables may be allowed.

Stage 1: Liquid Diet

It can be helpful to follow a liquid diet before bariatric surgery, as this can help trim the fat in and around your abdomen and liver. This pre-op liquid diet can begin once your doctor has cleared you for surgery. Doing this better increases your chance of meeting your pre-op weight goal, thus eliminating the risk of the procedure being canceled. The following liquids are likely to be recommended by your provider:

  • Decaffeinated coffee and tea
  • Skim milk
  • Thin soup and broth
  • Unsweetened juice
  • Sugar-free gelatin
  • Sugar-free popsicles

Post-Op Bariatric Diet

Once your operation has been performed, your stomach will need to heal. What and how you eat will be a determining factor in how well and how quickly you recover. Your post-bariatric surgery diet will prevent your stomach from stretching and putting undue stress on your body. It’ll also help you get used to eating smaller amounts, help with initial weight loss and help avoid side effects and complications from surgery.

The first five weeks after surgery will be the most vital and the most challenging. Your diet after bariatric surgery will unfold in stages until you’re able to tolerate solid foods. Establishing a new, healthy bariatric diet will be integral to maintaining weight loss success throughout the rest of your life.

Stage 1: Liquid Diet

Stage 1 of the post-op bariatric diet, which is an all-liquid diet, lasts for one week. Your provider will probably recommend and allow you to consume:

  • Water
  • Fat-free milk
  • Fat-free broth
  • Unsweetened juice
  • Sugar-free jello
  • Decaf tea or coffee
  • Strained cream soup

Stage 2: Pureed Foods

During this stage of your post-bariatric surgery diet, which lasts two weeks, you’ll eat foods that have the consistency of a smooth paste or thick liquid. You’ll still want to consume high amounts of protein and the recommended daily 64 oz. of water. Multiple small meals throughout the day will be substituted for three larger meals, due to the diminished capacity of your post-surgery stomach.

  • No caffeinated or carbonated drinks
  • Protein shakes
  • Egg whites
  • Non-fat soft cheese
  • Non-fat cottage cheese
  • Soft fruits and cooked vegetables

Puree or blend solid foods with one of these approved liquids:

  • Water
  • Skim milk
  • Broth
  • Juice with no sugar added

Stage 3: Soft Foods

Stage 3 of the diet after bariatric surgery, which lasts two weeks, includes anything that can be easily mashed with a fork, but that doesn’t mean you can eat whatever you want as long as it’s soft. Stage 3 continues to focus on lean, high-protein foods with the gradual introduction of more fruits and vegetables. Stage 3 diets often include:

  • Lean chicken
  • Lean turkey
  • Fish
  • Egg whites
  • Non-fat cottage cheese
  • Non-fat cheese
  • Tofu
  • Potatoes
  • Carrots
  • Green Beans
  • Tomatoes
  • Squash
  • Cucumbers
  • Bananas
  • Avocados

Stage 4: Solid Foods

Once you’re able to tolerate soft foods, you may begin integrating firmer foods into your diet. You’ll want to chop or dice foods and start slowly to see how your body responds. It’s recommended that you only add one new food per day to accurately assess your body’s reaction. You may find that you have difficulty with dairy products or spicy foods.

Stage 4 carries over the high-protein requirements and daily intake of 64 oz. of water for proper hydration. During this stage, you’ll want to AVOID:

  • Refined sugar
  • High carbohydrate foods
  • Nuts and seeds
  • Popcorn
  • Dried fruits
  • Carbonated beverages
  • Granola
  • Fibrous vegetables like celery, broccoli, corn, and cabbage
  • Fried foods
  • Bread and whole grains
  • Beef
  • Pork
  • Shellfish
  • Grapes
  • Beans

At each and every stage of this bariatric surgery diet, you’ll want to keep a few things in mind. Be sure to eat and drink slowly, keep your meals small, drink plenty of water between meals, chew thoroughly, focus on high-protein foods, and avoid foods with high fat and sugar content.

Again, the above guidelines are just that: guidelines. Your surgeon and/or provider will develop an individual plan for you to follow. The important takeaway is that you stay with your plan, however, your doctor designs it, to get the most out of your bariatric surgery. Learn more about Bariatric Care & Weight Loss Management at Baptist Health.

Infographic-Bariatric-Diet