Study: Pesticides May Double ADHD Risk

[Guest guest]

(CBS) As an increasing number of children are diagnosed with ADHD, parents and

doctors have been scrambling to understand why.

The answer might be on their dinner plates.

A new study suggests that exposure to pesticides often used in commercial

farming may be pushing the trend.

Researchers at the University of Montreal found that children whose urine tested

positive for byproducts of certain pesticides had double the chance of receiving

an attention deficit hyperactivity disorder diagnosis. More than 1,000 kids were

tested - the largest study of its kind. The work appears in the journal

Pediatrics.

The irony is the type of pesticide in question, organophosphates, kill pests by

disrupting their nervous systems.

Are they doing the same thing to our kids?

" It seems plausible that exposure to organophosphates could be associated with

ADHD-like symptoms, " the study's lead author, Dr. se Bouchard, told

Health.com.

" It's not a small effect, " she said. " This is 100 percent more risk. "

And, according to the government, the amount of pesticide kids are ingesting

isn't small either.

A 2008 U.S. Department of Agriculture report cited by the study said that trace

amounts of organophosphates were found on:

28 percent of frozen blueberries

27 percent of green beans

25 percent of strawberries

20 percent of celery

17 percent of peaches

Of course, adults consume those pesticides also, but kids are especially

vulnerable. And exposure is not just from food. An organophosphate called

trichlorfon is also used by lawn care companies and on golf courses.

What to do?

The study's authors recommend going organic when possible and say that local

farm produce, even if not grown organically, often has less pesticide residue

than industrially farmed produce.

The study's authors caution that cutting out fresh fruits and vegetables is a

bad idea and that all the causes of ADHD are not yet clear.