Scientists have found that fructose is a big cause of obesity. Fructose is a fruit sugar. It is also used to make high fructose corn syrup, which causes obesity. Researchers found that fructose isn't the biggest source of calories, but it makes us want to eat fatty food. They suggested we change what we eat. They said we need to cut down on junk food. They also said we should think about reducing our fructose intake.

The Researchers looked at all known causes of obesity. They found that the body converting fructose into energy reduces levels of a compound called ATP. When ATP falls, we eat more. A researcher said fructose makes "our metabolism to go into low power mode and [we] lose our control of appetite". Scientists believe that high amounts of fructose lead to health issues. The most common of these is non-alcoholic fatty liver disease.