Weight loss surgery can be one of the most meaningful decisions of your life, but your results depend heavily on what you do before and after the procedure. Preparation and recovery are just as critical as the surgery itself, and following your surgeon’s instructions carefully can make the difference between a smooth recovery and unnecessary setbacks.
At NYC Hernia, Dr. Brian Jacob, MD, FACS, gives every patient a clear, personalized roadmap so you know exactly what to expect at every stage. A Castle Connolly Top Doctor listed in New York Magazine from 2012 to 2026 and a Professor of Surgery at the Icahn School of Medicine at Mount Sinai, Dr. Jacob brings world-class surgical expertise directly to you.
One to Two Weeks Before Surgery
Your pre-operative diet is an important part of preparing your body for a safe procedure. During this period, focus on eating high-protein, low-fat, low-carbohydrate foods. Your nutritionist will provide specific instructions tailored to your needs, and you should follow their guidance closely.
Two Days Before Surgery
The Evening Before Surgery
After midnight the night before your procedure, do not eat or drink anything. This includes water.
Medications Before Surgery
Do not take your regular medications on the morning of surgery unless Dr. Jacob has specifically instructed you to do so. If you are taking Ozempic or any other GLP-1 agonist appetite suppressant, such as semaglutide or tirzepatide, you must stop taking it for a minimum of two dosing intervals, or at least 15 days before surgery.
What to Expect on Surgery Day
Plan to arrive at the check-in area at least two hours before your scheduled surgery time. Unexpected delays can happen, so bring something to read. The surgery itself takes approximately 1.5 hours, followed by about three hours in the recovery room. After recovery, you will stay one night in a hospital room before being discharged.
Diet After Surgery
Immediately following surgery, you will return to a clear liquid diet for two additional days. After that, you will move to pureed or blended foods only for three weeks. No exceptions. Some examples of approved foods during this phase include:
- Protein shakes
- Applesauce
- Yogurt
- Any blended or fully pureed food
Your nutritionist will walk you through the details of each dietary phase. Work closely with them throughout your recovery.
Bathing After Surgery
You may shower starting on day one after surgery. Bathing is permitted beginning on day five.
Managing Common Side Effects
Some side effects are common during recovery. Here is how to address them:
- Heartburn: An over-the-counter antacid such as Prilosec, taken once daily, is recommended.
- Constipation: Increase your intake of water or vitamin water. If needed, you may try milk of magnesia, senna tea, Colace, or Dulcolax.
Daily Vitamins
Take a chewable multivitamin or a vitamin patch every single day after surgery. This is essential for your long-term health after bariatric surgery.
Why Choose NYC Hernia for Weight Loss Surgery in New York, NY?
Choosing the right surgeon for weight loss surgery is one of the most important decisions you will make. Dr. Brian Jacob has built an internationally recognized reputation as a bariatric and weight loss surgeon, and his record in New York City reflects decades of dedication to patient outcomes. For 14 consecutive years, The New York Times Magazine has named him one of the best surgeons in NYC, and Castle Connolly has recognized him as a Top Doctor in New York Magazine every year from 2012 to 2026.
As a Professor of Surgery at the Icahn School of Medicine at Mount Sinai, Dr. Jacob approaches every patient as an individual. He believes no two surgeries or recoveries are alike, so each patient receives a personalized plan built around their specific needs and goals. He operates at Mount Sinai Medical Center and Midtown Surgery Center, two of New York City’s most respected surgical facilities.
Follow Up and Stay on Track
Following your perioperative instructions carefully gives you the strongest possible foundation for success. Plan to schedule a follow-up appointment with Dr. Jacob two to three weeks after your surgery. If questions come up at any point during your recovery, the team at NYC Hernia is available to help.
Reach out to NYC Hernia in New York, NY, by calling 212-879-6677 or book a consultation online (opens in new tab). You do not have to navigate recovery alone when you have an expert by your side.
