As a result of gastric bypass surgery, you digest fewer calories, facilitating weight loss. Gastric bypass is typically performed on the morbidly obese. Immediately after gastric bypass, your diet will consist of clear liquids while your system heals. Eight weeks after surgery, you can begin to reintroduce foods that have increased bulk and consistency, decreasing your reliance on liquid and pureed foods. It's important to eat high-quality foods once you are able to resume relatively normal eating habits.
Proteins
Protein is the foundation for the repair and replacement of tissues in your body. According to Jackson Siegelbaum Gastroenterology, once you're able to consume solid foods, you should emphasize proteins that are low in fat. These include white meat skinless poultry, lean red meat, fish, eggs and low-fat diary products. The digestive system has a smaller surface area after gastric bypass, so there's less opportunity for nutrient absorption from the foods you eat. This is why the proteins you consume should be of the highest quality and nutrient density.
Fruits and Vegetables
Fruits and vegetables are important sources of nutrients and dietary fiber, but after gastric bypass, you may need to limit them. Because there is less area within your digestive system, there is consequently less acid in your stomach. Eating too much of a high-fiber fruit or vegetable can cause it to accumulate in the opening to the small intestine. Ask your doctor about recommended daily intake of fruits and vegetables. You may need to consume smaller amounts of these foods or cook them thoroughly before eating.
Nonfat Milk
Nonfat milk is an excellent source of both protein and carbohydrates with no added sugar. Jackson Siegelbaum Gastroenterology recommends you consume small amounts of nonfat milk throughout your day, for a total of approximately 2 cups. Don't drink fluids with food, because this can dilute your stomach acid and cause indigestion. Instead, drink small amounts between meals. If you're lactose intolerant, ask your doctor about substituting beverages like soy milk for cow's milk.
Carbohydrates
Carbohydrate foods are a source of energy for your body and you still need them after gastric bypass surgery. The DukeHealth.org recommends you consume carbohydrates that don't have a sticky consistency, such as the kind found in short-grain rice and untoasted bread. Instead, choose thinned hot cereals like oatmeal, dry toast, peeled potatoes and dry crackers. Always chew carbohydrate foods well, to make sure the digestive process has begun before the food reaches your stomach.
References
- MayoClinic.com; Gastric Bypass Diet; October 2009
- MedlinePlus; Your Diet After Gastric Bypass Surgery; February 2009
- The University of Chicago Medical Center: Gastric Bypass (Malabsorptive) Surgery
- Jackson Siegelbaum Gastroenterology; Gastric Bypass Diet; Frank W. Jackson
- DukeHealth.org: The Recommended Diet Following Bariatric Surgery
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