January 2/Portland/ABC News -- Glucose appears to tamper brain activity in regions that regulate appetite and reward, but fructose does not, a new study found.
The brain imaging study found participants who had a drink sweetened with glucose had reduced blood flow in an area of the brain called the hypothalamus, while those who drank a fructose-sweetened beverage saw a slight increase in blood flow -- a proxy for brain activity -- Dr. Robert Sherwin of Yale University and colleagues reported in the January 2 issue of the Journal of the American Medical Association.