This is your brain on sugar—for real. 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.
It’s a small study and does not prove that fructose or its relative, high-fructose corn syrup, can cause obesity, but experts say it adds evidence they may play a role. These sugars often are added to processed foods and beverages, and consumption has risen dramatically since the 1970s along with obesity. A third of U.S. children and teens and more than two-thirds of adults are obese or overweight.
Scans showed that drinking glucose “turns off or suppresses the activity of areas of the brain that are critical for reward and desire for food,” said one study leader, Yale University endocrinologist Dr. Robert Sherwin. With fructose, “we don’t see those changes,” he said. “As a result, the desire to eat continues—it isn’t turned off.” …
(Excerpt) Read more at hosted.ap.org ...
