Nutrition after bariatric surgery

Nutrition follow-up before and after surgery

Bariatric surgery changes how much food you can eat and how you eat it. Nutrition follow-up supports safe recovery, helps prevent vitamin deficiencies and protects long-term results.

Last updated: September 2026 · Educational information; it does not replace individual medical assessment.
Dr. Poulainne Magdy Maurice Girgis
Bariatric nutrition referral pathway

Dr. Poulainne Magdy Maurice Girgis

MD · ESPEN European Board

Nutrition assessment and preparation before bariatric surgery, postoperative diet progression, supplements and long-term follow-up coordinated with the surgical pathway.

Before surgery

  • Reviewing eating habits, possible deficiencies and required blood tests
  • Stop bread, rice and pasta 1–2 weeks before surgery for the duration specified by Dr. Fady; follow the complete prescribed preparation diet
  • Planning protein, fluids, supplements and medication changes
  • Identifying difficulties that may affect recovery or follow-up

After surgery

Follow the food and fluid stages prescribed by the team.
Prioritise fluids and protein as instructed.
Take prescribed vitamins and minerals regularly.
Attend surgical, nutrition and blood-test follow-up.
Ask for help early if you have persistent vomiting, difficulty eating or concerning symptoms.

Referral to a specialist dietitian

When needed, we arrange follow-up with a dietitian experienced in bariatric surgery for support before and after the operation, supplements, eating difficulties, a weight plateau or weight regain.

Follow-up continues long term

The type of supplements and blood tests differs according to the operation and the patient. Do not stop or change a prescribed supplement before speaking with the bariatric team.

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