• Guest - w'd love to know what you think about the forum! Take the 2025 Survey »

Bariatric Surgery and Ketosis

I found this......

DIET
PRE-OP LIQUID DIET
A week or two prior surgery your surgeon or dietitian will ask that you start a pre-op diet. The pre-op diet for gastric bypass typically looks like this:

  • 5 to 7 liquid meal replacement shakes per day. High protein, low carb shakes are recommended. The xxxxxxx has a number of popular meal replacement shakes.
  • 64 to 96 ounces of water per day. Use the xxxxxxxx to track this.
  • Some surgeons may allow a small portion of vegetables daily.
The goal of the pre-op diet is to shrink the size of your liver so it’s easier for your surgeon to access your stomach during surgery. The pre-op diet is tough but important. You will be hungry, dizzy, and moody for the first couple of days. By day three you should start to feel better as your body starts to burn fat instead of carbs as your primary energy source.
 
No wonder they have baritric patients with problems with diet afterwards!!
That is not really appetisingat all!
I believe you will find that portion size is really troublesome, you just won’t feel like eating, no surprises with that menu.

Where’s the bacon and egg?

Best wishes
Bacon and eggs comes along after a few months of your healing new stomach.

See....
POST-OP DIETARY GUIDELINES
A strict diet must now be followed for several reasons. Your stomach is now much smaller and recovering. Your intestines have been cut and re-routed. There are staples in both of these areas holding the tissue together. It’s important to not put any undue stress on this tissue while it’s healing. Large meals, fibrous food, carbonated beverages can lead to a staple line leak. Do not risk a serious complication. Follow your post-op diet!

There are four phases of the post-op diet:

  1. Clear Liquids
  2. Pureed Foods and Protein Shakes
  3. Soft Foods
  4. Solid Foods
PHASE ONE: LIQUIDS
For about a week after surgery, only certain liquids are to be sipped slowly at the rate of two ounces per hour. Most dietitians and doctors will recommend items like water and sugar-free jello as well as fat-free broth and fat-free milk. The chart below shows a typical liquid diet for the first week after surgery.

liquid-consumption-schedule.jpg

SAMPLE MENU FOR PHASE 1 OF GASTRIC BYPASS POST-OP SAMPLE MENU.



For more details on your phase one liquid diet, check out our Gastric Bypass Diet Guide.

PHASE TWO: PUREED FOODS AND PROTEIN SHAKES
Your doctor or dietitian will determine when the second phase will begin. For the next week or two, you will be able to consume pureed foods several times throughout the day in very small portions. During this phase, focus on eating slowly. Each small portion of soft food should be consumed over a 30 minute period. Eating each meal slowly, taking at least 30 minutes per meal, should remain a goal through all of the post-operative phases and beyond. The Baritastic app has a food timer that is handy for this purpose.

Most dietitians and doctors will recommend a daily intake of 60 to 70 grams of protein per day and about 64 ounces of the types of liquids consumed in phase one. Fat, sugar, caffeine, and carbonated beverages should be avoided. Your dietitian or doctor will probably allow you to consume egg whites, protein shakes, non-fat cottage cheese, and creamed soups with any chunks skimmed out. Wait at least 30 minutes before and after eating before drinking.

Below is a typical phase two diet schedule. Follow your doctors recommendations for vitamins and supplements. More phase two diet information can be found here.

stage-2-gastric-bypass-diet.jpg

SAMPLE MENU FOR PHASE 2 OF GASTRIC BYPASS DIET.



PHASE THREE: SOFT FOODS
During this part of your post-op diet plan, you will gradually begin to add food substances with more texture. This phase will usually last from one to three weeks, depending on the recommendations of your doctor or dietitian.

In this phase, you will be able to consume some lean meats and vegetables that are soft enough to be easily mashed with a fork, and your nutritional goals will remain the same as they were in phase two. A small amount of fat might be allowed.

Recommended soft foods will probably include items such as fish, egg whites, tofu, fat-free cottage cheese, fat-free cheese, canned tuna, and canned or shredded chicken softened with water. The vegetables that might be may suggested include avocados, mashed green beans, steamed carrots, and squash. Bananas will probably be allowed as well. However, bananas have a high sugar content. Break your banana into bite sized portions and only eat a bite or two in one sitting.

stage3-gastric-bypass-diet.jpg

PHASE 3 OF GASTRIC BYPASS DIET.



PHASE FOUR: SOLID CUISINE
This is the last stage of your post-op diet plain. Go slow. Introducing new foods too quickly can cause painful gas, bloating, heartburn and dumping syndrome. Introduce one new food at a time. Wait a day before introducing another new food.

The goal in stage four is to re-introduce healthy foods in small portions. It is still recommended to start with softer foods and gradually work into chewy and fibrous foods.

Remember to take your time eating and continue to chew each bite of food well.

Keep track of your protein and ensure you are eating healthy vegetables as your primary carbohydrate source. Stay away from’ junk’ carbohydrates such as refined sugar, pasta, rice, bread, chips, etc.

You should now be able to reduce your meals per day to three small, nutrient dense meals (protein and vegetable). Supplement with your protein shakes and don’t forget needed vitamins and supplements.

Your total caloric intake will eventually reach 1,000 to 1,500 calories per day but do not force it. Certain foods are difficult for your body to process. Add them slowly and in small portions. These foods include corn, nuts, beans, beef, pork, shellfish, and grapes.

stage4-gastric-bypass-diet.jpg

PHASE 4 GASTRIC BYPASS SAMPLE MENU.
 
Back
Top