Uridine in diet: Makes you crave for more

 

Uridine makes you hungry: Research identifies potential target for therapeutics against eating disorders

Uridine is not only a central building block of RNA, but can also increase the feeling of hunger when ingested, as researchers at the Max Planck Institute for Metabolism Research and the University Hospital of Cologne have now shown. In the long term, uridine could be a potential target for therapeutics against eating disorders in humans.

Uridine is known primarily as a precursor for RNA, but also plays a central role in many other processes in the body. In mice, researchers at the Max Planck Institute for Metabolism Research found several years ago that uridine has an important function in controlling feeding behavior.

"We wanted to know whether uridine also controls eating behavior in humans. In humans, however, such studies are much more complicated because, for example, social interaction has a major influence. When other people observe what we eat, it can cause us to change our eating behavior," explains Ruth Hanssen, one of the study's first authors.

To minimize this influence, the volunteers were separated from each other before being given uridine orally. The volunteers were then allowed to eat as much as they wanted during the day and were asked to indicate how hungry they felt. They also had blood drawn to measure how much uridine was present in their blood.

The researchers were able to demonstrate that the subjects were significantly hungrier after taking uridine and also consumed more of the food offered. The effect was particularly strong when uridine was administered in doses that were not too high.