New York: People who`ve had gastric bypass surgery might make healthier eating choices than those who opt for the weight loss procedure known as gastric banding, say UK researchers who found bypass patients less tempted by sweets and other fattening foods.After surveying patients who had either type of surgery, and performing brain scans on several dozen of them, Dr. Tony Goldstone of Imperial College London and Hammersmith Hospital and his colleagues found that even deep down in their brains, the gastric bypass patients seemed to like high-calorie foods less."The results suggest that gastric-banding patients had to exert quite a lot of self-control over their eating behavior. Banding patients also had higher concern about their weight," Goldstone told Reuters Health.In contrast, gastric bypass patients "don`t feel they have to exert as much cognitive control over what they`re eating," said Goldstone, who presented the findings October 4th at the Obesity Society`s annual meeting in Orlando, Florida.The two weight loss operations have similar broad goals -- to shrink the stomach so people feel full with less food. In gastric bypass, the stomach is surgically reduced and one end of it is rerouted to bypass part of the small intestine. With gastric banding, a silicone band placed around the top of the stomach reduces its capacity.Although gastric banding is more popular, in part because the band can be removed, previous research has found gastric bypass patients seem to lose more weight and lose it faster than banding patients. The reasons for the differences are still unclear.Goldstone`s team studied 30 gastric bypass patients, 28 gastric banding patients and 20 people who did not have weight loss surgery. All the participants started out obese and the two surgery groups had lost similar amounts of body weight since their respective procedures, an average of 28 percent.
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