Finally, some good news about cholesterol and kids: A recent study by government researchers shows that in the last decade, the proportion of children who have high cholesterol has fallen.

Some experts were a little surprised by the new study’s results. High cholesterol is often linked to obesity, and the childhood obesity rate hasn’t budged.

But researchers have a theory: The cholesterol-raising trans-fat content of many foods has declined in the last decade, and that may have been the cause.

The study by government researchers was released online by the Journal of the American Medical Association.