The human brain can produce the sugar fructose, a new small study finds.
Researchers found that the brain can convert one form of sugar, called glucose, into another form, called fructose. People who have too much fructose in their diet may face an increased risk of conditions such as type 2 diabetes and obesity.
Previous research has suggested that fructose and glucose act differently in the brain. For example, studies have shown that glucose sends signals of fullness to the brain, but fructose does not, lead study author Dr. Janice Hwang, an assistant professor of medicine at Yale University, said in a statement.