UNITED NEWS INTERNATIONAL (UNI) — Kids who eat fish may be smarter and sleep better.

That’s according to new research published in the journal Scientific Reports.

The study looked at over 500 boys and girls in China between the ages of 9 and 11.

Researchers took into account how often kids ate fish and the results of their standard IQ test.

They found that kids who ate fish once a week scored nearly five points higher on the IQ tests than those who rarely or never ate fish.

The study found that children who sometimes ate fish still scored three points higher than their non-fish-eating peers.

Parents also reported on how well their child slept at night. Researchers found the kids who ate fish had fewer disturbances while sleeping.

Past research has found links between the omega-3 fatty acids found in fish and better brain function — including intelligence and better sleep.