Chrysalis Clinic Health
Patient Experience
HOME
TEAM
CONTACT US
  BMI
  calculator
Weight (kg)
Height (cm)

post surgical diets

IMMEDIATELY AFTER SURGERY
Your new diet will need to be quite radically different from your usual diet. The surgical procedure is considered to create malnutrition, and life-long follow-up and regular monitoring of your nutritional status is essential in order to prevent you from, ultimately, suffering from the effects of this malnutrition.

Day 1 Post-op
Nothing by mouth.

2-4 days Post-op
You will progress through the following foods. The rate at which you add new foods to your diet will depend upon how quickly you recover from your surgery.

  • Clear fluid, low sugar diet: sugar-free jelly, diluted pure fruit juices, clear soups.
  • Full fluid, low sugar, low fat diet: all the above foods, as well as pureed vegetable soups, strained porridge, sugar-free custard.
  • Pureed diet: all foods must be pureed, and should not contain any added sugar. Fat content of the diet remains low.

4 days to 4 weeks Post-op
Pureed or soft high protein foods.

2 months Post-op
Foods should still be soft and easy to chew, but need no longer be pureed.

3 months onwards
Try introducing rice, soft bread (if you haven’t had this already) and a greater variety of vegetables and fruit.
Introduce one new food at a time.
You may not be able to tolerate certain foods. Leave these out of your diet for a few weeks, but try to introduce them again in the future.

LONG-TERM DIET
Your diet should always be high in protein and low in refined carbohydrates and fats.

  • Eat small amounts: initially not more that 2 Tablespoons of food at a time. Your stomach pouch will eventually expand to hold about ½ to 1 cup of food or fluid. However, it will take many weeks before this happens.
  • Eat slowly and chew your food well, taking about 20-30 minutes to eat each meal.
  • Stop eating when you feel full. If you eat too much, or eat too fast, you will vomit.
  • Drink sufficient fluid to prevent dehydration and constipation (6 – 8 cups daily). Have small sips at a time, and do not drink with meals.
  • Frequent small meals are important. You should eat 3 small meals and 1 high protein snack per day.
  • A high protein diet is essential in order to maintain your nutritional status. You must include a source of protein at each meal.
  • You should eat protein first, then fruits and vegetables, and lastly whole grains.
  • Limit your intake of fats: they cause nausea, and will slow your weight loss.
  • Make sure your diet is healthy and balanced. Do not eat foods providing empty calories.
  • Avoid swallowing chunks of meat or other food that could block the pouch opening. For further information, see Frequently Asked Questions.
  • Daily and life-long vitamin supplementation is vital.