Gastric Bypass and Gastric
Immediately after your gastric bypass or gastric
sleeve surgery, you won't be able to eat for one
to two days. After a couple of days, you will be
able to eat some very specific foods according
to a diet progression. The purpose of the
gastric bypass diet progression is to help you
in the healing process, minimize stress on
surgical areas and allow time for your body to
adjust to new eating patterns.
Common phases in the gastric bypass and
gastric sleeve diet:
Phase I - Liquids - foods and fluids that
are liquid or semi-liquid at room temperature
and contain mostly water, such as broth, juice,
milk, strained cream soup and cooked cereal. In
most cases, you stay on a liquid diet for one to
Phase II - Pureed foods - foods with a
consistency of a smooth paste or a thick liquid.
Pureed foods contain no distinct pieces. The
pureed diet is generally followed for three to
four weeks, or as recommended by your dietitian
Phase III - Soft foods - foods that are
tender and easy to chew, such as ground or
finely diced meats, canned or soft, fresh fruit,
and cooked vegetables. You usually eat soft
foods for eight weeks before progressing to
eating foods of regular consistency with firmer
texture as recommended by your dietitian or
During the diet progression, you eat many small
meals each day and sip liquids slowly throughout
the day (but not at the same time you eat). You
may start with six small meals a day, then
progress to four meals and then finally, when
following a regular diet, decrease to three
meals a day. Typically, each meal will include
protein-rich foods, such as lean meat, low-fat
dairy products (yogurt, cheese) or eggs. Protein
is important for maintaining and repairing your
body after surgery.
How quickly you move from one step to the next
depends on how fast your body adjusts to the
change in eating patterns and the texture and
consistency of food. People usually start eating
regular foods with a firmer texture three months
after surgery, but it can occur sooner.
You may drink anything that is clear and liquid at room temperature. Avoid caffeine and carbonated drinks.
- Water with ice chips
- Sugar free popsicles
- Crystal Light
- Decaf tea
- Sugar Free Jell-O
- Diet V8 Splash
Do not drink from straws or sports top bottles as this can cause air
bubbles and may cause discomfort. Water may be difficult at first. Try
adding lemon and adjusting the temperature. Please follow your doctors'
recommendations on how long to follow each diet.
SOFT FOOD DIET
- Mashed potatoes
- Malt-O Meal
- Scrambled Eggs
- Baked Fish
- Low Fat cottage cheese
- Sugar free yogurt or pudding
- Applesauce with no sugar added
- Soft cooked vegetables
- Avoid eating fats and sugar for the time being as these may be
difficult for the body to digest in this stage.
- Chew your food very well - eat slowly.
- If you feel full - STOP EATING
- Protein is needed by the body to build and repair the body's
cells and tissues.
- Protein plays a vital role in immunity.
- Choose lean meats such as:
- Fish, shellfish, poultry, lean beef, lamb, pork, veal, and 95%
fat free deli meat.
- Avoid high fat cooking methods like frying with oil. void high
fat meats such as bacon, sausage, pepperoni or salami.
- A limited amount of fat is needed in the diet.
- Fats can be found in baked goods (cakes, muffins, cookies),
greasy or fried foods, oils and butter.
- Fat may be difficult to digest after gastric bypass surgery.
- Too much fat may cause reflux (heartburn).
- Excess fat may cause diarrhea, nausea and discomfort.
- Avoid high fat choices like regular salad dressing, butter,
cream cheese and mayonnaise.
- Choose low fat options such as fat free / low fat salad
dressing, mayonnaise, nonstick cooking spray and olive oil.
- Carbohydrates including grains and starches are the bodies main
source of energy.
- They provide energy, B Vitamins, Fiber, and Minerals
- Complex carbohydrates provide nutrients and make you feel full.
- Look for foods with whole grain or 100% wheat flour.
- Examples of complex carbohydrates:
- Wheat bread, low fat crackers, cereals with low sugar such as
Special K, Cheerios, Raisin Bran, rice and pasta
FRUITS AND VEGETABLES
- VEGETABLES provide fiber, energy, Vitamin A and Vitamin C
- Choose a variety of vegetables for your diet
- Avoid using high fat cooking methods such as added butter or
oil, or adding high fat sauces such as creams, cheese or gravy
- Remember to incorporate vegetables back into your diet slowly
and start with soft consistencies.
- FRUIT provides complex carbohydrates, fiber, energy and
- Incorporate them into your daily routine; fruit makes great
- Choose a variety of fruits
- Remember to incorporate fruits back into your diet slowly and
start with soft consistencies.