Dietary intake is normalized by gastric bypass surgery - forskning.se

– After surgery seen major changes in food choices and eating habits similar to those we see in a healthy normal weight control group, says doctoral student Anna Laurenius.

class=”normal”> In his thesis from the Sahlgrenska Academy, University of Gothenburg, Anna Laurenius, registered dietician, among other followed 128 people with obesity as gastric bypass surgery. The studies in which patients received eating test meals and / or responded to questionnaires, shows that it usually works very good to eat after a gastric bypass surgery, but there is a risk of symptoms after eating.

class=”normal”> Many are surprised that they can eat fairly large portions, and as long as the food is not too greasy, it is often good to have a little more volume. A few months after surgery, most able to eat a normal sized portion or some surgery puts it, “now, I do not about the food.”

class=”normal”> – although the amount of food patients eat only reduces the start, so reducing caloric intake. It reflects that patients choose different foods, where fat intake is reduced and fruit and vegetable intake increases, says Anna Laurenius.

class=”normal”> Although they operated ate smaller portions of the test meal was the same as measured before surgery and äthastigheten sank. Interestingly shifted calorie intake to earlier in the day, while the number of meals per day increased only slightly.

class=”normal”> – We have now reassessed dietary advice for patients undergoing gastric bypass. We believe, for example, not having to snacking, it is usually enough with the usual headline and maybe fruit in between, says Anna Laurenius.

class=”normal”> Since food bypasses the stomach and goes directly into the intestine, the operation can lead to so-called dumping symptoms, that is to say that the food “dumped” into the intestine which among other things can cause fatigue and nausea.

class=”normal”> – My thesis suggest that the dumping-symptoms should be seen as a tool. Most quickly learn where the limits are, but 10 percent have persistent symptoms, says Anna Laurenius.

dissertation Roux-en-Y gastric bypass as treatment for morbid obesity: studies on dietary intake, eating behavior and meal-related symptoms defended on April 19.

class=”normal”> Link to thesis: http://hdl.handle.net/2077/32372

class=”normal”> FACTS ON GASTRIC BYPASS:
performed in Sweden annually about 8,000 gastric bypass surgeries. For an operation requires a BMI of 40 or 35 on the morbidity related to overweight some seeds as diabetes, hypertension or sleep apnea. Gastric bypass surgery has been well-documented effects on long-term weight loss and health-related quality of life, obesity-related morbidity and mortality, among others. text by the Gothenburg-based study “Swedish Obese Subjects” following in 2000 operated under 20.