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08 August 2011

Weight-loss surgery curbs food cravings

A common type of weight-loss surgery appears to help patients shed kilograms by reducing their intake of fatty foods and helping them stick to a healthier diet.

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A common type of weight-loss surgery appears to help patients shed kilograms by reducing their intake of fatty foods and helping them stick to a healthier diet, a new study indicates.

In Roux-en-Y gastric bypass, the stomach is reduced to a small pouch and connected to the middle of the small intestine.

While many patients who undergo this type of surgery lose large amounts of weight, it wasn't clear exactly how this happened.

In a study with rats, researchers found that Roux-en-Y leads to a large reduction in consumption of fatty foods and drinks. This effect lasted for up to 200 days in rodents that underwent the procedure.

Weight-loss surgery treats obesity

This avoidance of high-fat foods seems to be the result of unpleasant digestive effects that may be caused by increased levels of hormones associated with food avoidance, the researchers said.

People who underwent the surgery also reported eating less dietary fat.

The findings were released online in advance of publication in an upcoming print issue of the American Journal of Physiology – Regulatory, Integrative, and Comparative Physiology.

Learning more about how weight loss surgery reduces the desire to eat fatty foods could lead to new surgical and non-surgical treatments for obesity, Carel le Roux, of the Imperial Weight Centre at Imperial College in London, and colleagues said in the report.

(HealthDay News, August 2011)

Read more:
Weight loss surgery
Obesity

 
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