(NBC) - You give your kids fruits and veggies because they're healthy, right? A new study suggests some of those things may contribute to ADHD.
According to national statistics, anywhere from 20 to 30 percent of strawberries, frozen blueberries and celery contain pesticides called Organophosphates.
A new Harvard study has found kids with higher levels of this pesticide in their urine were more likely to meet the diagnostic criteria for attention-deficit hyperactivity disorder.
NBC's Chief Medical Editor Dr. Nancy Snyderman said this is a very surprising finding given what we already know about pesticides and children.
"I want to say we've known in the past that children who live and work on farms or children who are around pesticides have an increased risk of neurological problems," Snyderman said. "But these are kids who otherwise were not in any high risk group."
This is not a definitive link and experts say much more research needs to be done.