Undergoing gastric bypass surgery requires patients to undergo a 7 to a 14-day pre-operative diet. This diet is specially designed to shrink fatty liver, a condition that many obese patients have. By shrinking the fatty liver bariatric surgeons have more control and will be able to perform your surgery safely. By shrinking fatty liver with this diet surgeons are better able to visualize the stomach and thus, perform the gastric bypass surgery.
The goal of the preoperative gastric bypass surgery is consume 800 to 1000 calories per day in liquids. Because many patients consume 3,000 to 5,000 calories per day, many patients will have unpleasant feelings consuming this diet, namely irritability and headaches. Most patients will adjust to the new diet in a few days, and their unpleasant feelings will subside. It’s important to undergo this procedure
Things to Note:
- It’s important to consume enough water while on the liquid-only diet.
- Do not take any herbal medications for seven days before surgery.
- Diabetics need to monitor your blood sugars and contact your doctor if necessary.
- Do not take any aspirin, Advil, Nuprin, Aleve or any other non-steroidal anti-inflammatory medication for seven days before surgery. These drugs cause profuse bleeding after surgery. This includes baby aspirin and most arthritis medications. If you are not sure, please check with our Doctors. For a headache or minor pains, you may use Tylenol. You may restart these medications the next day after surgery.
- You may take needed medications (such as heart or blood pressure medications) with sips of water the morning of surgery as directed by our Doctors.
Pre-Operative Gastric Bypass Diet – 7 to 14 Days Before Surgery
- Drink a protein drink at breakfast and lunch (at least 15 days of protein in a drink).
- Dinner: Salad with Protein (chicken, fish, egg, etc.), the small amount of low-fat dressing, or fat-free dressing or olive oil and vinegar.
- Drink 1 Protein Drink if Needed.
- You may also take 1 Metamucil capsule per day if needed for hunger.
Phase II: 3 Days Before Surgery
- Take a laxative (any laxative that you usually use). Take only clear liquids after that. This consists of broth, Jell-O, sugar-free juice, any clear liquid.
- You may have nothing to eat or drink after the midnight preceding surgery or 8 hours before your surgery.
- If you are the Same Day Surgery, arrive with an empty stomach. If you are coming in a day, prior you may have dinner but nothing after midnight.
- Black Coffee
- Tea/Iced Tea
- Low or no sugar fruit juices
- Jell-O – sugar-free
- Sports Drinks
- Crystal Light
- Slim-Fast Low Carb Shakes
- Slim-Fat Optima
- Slim-Fat High Protein
- Slim-Fat Smoothies
- Boost or Boost with Fiber
- Atkins Advantage Shakes
- Beef, vegetable, or chicken broth
- Propel Flavored Water
- Any 100% whey protein powder mixed with water or skim milk
- Popsicles – sugar-free
- Sugar-Free Kool-Aid, Tang, etc.
- Carnation Instant Breakfast – sugar-free made with skim milk
- Fat-free cream soup made with skim milk
Guide to Gastric Bypass Surgery:
- Cost of Gastric Bypass
- Gastric Bypass Risks, Complications
- Side Effects of Gastric Bypass
- Post-Operative Guide to Bypass Surgery
- Gastric Bypass Post-Op Diet
- Gastric Bypass Success Stories
- Gastric Bypass Recovery