By KRISTINA FIORE
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 Jan. 2 issue of the Journal of the American Medical Association.
Glucose also reduced activation in the insula and striatum, other brain regions that regulate appetite, motivation, and reward processing, while fructose did not, the researchers wrote.
In an accompanying editorial, Dr. Jonathan Purnell and Damien Fair of Oregon Health and Science University in Portland, said the findings "support the