Fructose may spur overeating

Scientists have used imaging tests to show for the first time that fructose, a sugar that saturates the American diet, can trigger brain changes that may lead to overeating.

After drinking a fructose beverage, the brain doesn't register the feeling of being full as it does when simple glucose is consumed, researchers found.

Scans showed that drinking glucose "suppresses the activity of areas of the brain that are critical for reward and desire for food," said Yale University endocrinologist Dr Robert Sherwin.With fructose, "The desire to eat continues — it isn't turned off," he said.

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