Weight-loss surgeries work in different ways, study shows

08/26/2013 | Healio

Patients who underwent Roux-en-Y gastric bypass experienced less response from areas of their brains that correlate with pleasure when shown photos of high-calorie foods than did patients who had gastric banding and those in a control group. Diet journals showed that RYGB patients took in less energy from fat compared with the gastric banding group, and had healthier eating habits. Researchers said the two obesity treatments employ distinct mechanisms for weight loss, and some of the physiological responses seen with RYGB may explain its efficacy.

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