Your doctor or dietitian recommends or discourages certain foods after gastric bypass surgery to ensure you eat few enough calories to meet your weight-loss goals while getting adequate nutrition and preserving lean muscle tissue. Your digestive system also works a little differently and may not absorb or digest foods as well as it used to, so it is important to pay attention to how well you tolerate certain foods.
Foods and Drinks to Avoid
Avoid foods such as cakes, cookies, pastries, donuts, cheese, pizza, ice cream, sausage, hot dogs, bacon and ribs that are high in calories, fat or sugar and offer few or no essential nutrients.
Other empty-calorie items such as sugar-sweetened juices or sports drinks and alcoholic drinks should be avoided to prevent wasting calories on items lacking valuable nutrients.
Stay away from carbonated items, too, which may be poorly tolerated or make you feel too full from the bubbles to be able to consume the nutrient-rich foods you need.
Raw vegetables, dried and fresh fruit with skins, breads, popcorn, nuts, and meats that are not easily chewed are not recommended for the first six months of recovery, but afterwards should only be avoided if they cause digestive discomfort.