Effect of a 24-week randomized trial of an organic produce intervention on pyrethroid and organophosphate pesticide exposure among pregnant women.

Background: Introduction of an organic diet can significantly reduce exposure to some classes of pesticides in children and adults, but no long-term trials have been conducted.

Objectives: To assess the effect of a long-term (24-week) organic produce intervention on pesticide exposure among pregnant women.

Methods: We recruited 20 women from the Idaho Women, Infants, and Children (WIC) program during their first trimester of pregnancy.