Gastric Bypass Diet
When people are considering gastric bypass surgery, one thing they are often very curious about is the gastric bypass diet. What will they be able to eat before surgery? What can they eat after surgery?
This can be a source of stress and anxiety, but it doesn’t have to be. Education beforehand is key to making this transition in your life as seamless as possible.
To change your eating habits, you will talk extensively with your doctor — Dr. Jay Long — and possibly a dietician as well to come up with the right plan for you, before and after surgery. Remember that following this plan will help you lose weight safely.
Pre-op gastric surgery diet
We will help you make a plan for a special diet you will need to follow before surgery. This pre-op diet is geared toward reducing the amount of fat in and around your liver to reduce the risk of complications during the surgery. Reducing this fat in and around your liver and abdomen may allow you to have a laparoscopic rather than open surgery, which is always our preference at Birmingham Minimally Invasive. This option is less invasive and requires much less recovery time. Overall, it’s easier on your body, so following this pre-op diet so that you can have laparoscopic surgery, if possible, is important. Starting to make changes in your diet before surgery will also help you start getting used to a new way of eating. This is a lifelong change, so the sooner you start, the better. Your eating plan may begin as soon as you are cleared for the procedure. Guidelines are individualized for each patient, but may include:- Eliminating or decreasing saturated fats, such as whole milk products, fatty meat, and fried food
- Eliminating or decreasing foods that are high in carbohydrates, such as sugary desserts, pasta, potatoes, and bread
- Eliminating high-sugar beverages, such as juice and sodas
- Practicing portion control
- Avoiding binge eating
- Quitting smoking
- Avoiding alcoholic beverages and recreational drugs
- Not drinking beverages with meals
- Taking a daily multivitamin
- Taking protein supplements
Post-op gastric bypass diet
After your surgery, we will tailor a post-op diet specifically for you. It will consist of several weekly phases to help you recover, meet the needs of your smaller stomach, and get used to healthier eating habits. The post-op gastric bypass diet is designed to:- Allow your stomach to heal without being stretched by the food you eat
- Get you used to eat smaller amounts of food that your smaller stomach can comfortably and safely digest
- Help you lose weight and avoid gaining weight
- Avoid side effects and complications from the surgery
- Drink 64 ounces of fluid a day to avoid dehydration
- Sip liquids between meals, not with meals (This means waiting about 30 minutes after a meal to drink anything and avoiding drinking 30 minutes before a meal.)
- Eat and drink slowly to avoid dumping syndrome (This occurs when foods and liquids enter your small intestine rapidly and in larger amounts than normal, causing nausea, vomiting, dizziness, sweating, and diarrhea.)
- Eat lean, protein-rich foods daily
- Choose foods and drinks that are low in fats and sugar
- Avoid alcohol
- Limit caffeine, which can cause dehydration
- Take vitamin and mineral supplements daily
- Chew thoroughly to a pureed consistency before swallowing

