Sometimes it takes a study to state the obvious. Researchers have found that when children eat organic fruits and vegetables, the amount of pesticides in their bodies declines significantly. The study, published in Environmental Health Perspectives, included 40 children whose urine samples were collected daily and examined for evidence of pesticides. Among the six most frequently detected pesticides, two decreased by nearly 50 percent when children switched to an organic diet, and those of a common herbicide fell by 25 percent. While most organophosphorus pesticides have been phased out for residential use, they are still widely used in agriculture.