In 2017, the primary guide for choosing organic produce was the , which includes the "Dirty Dozen" (high pesticide residue) and "Clean Fifteen" (low pesticide residue) lists. The Dirty Dozen: Prioritize Buying Organic
: Lacks a protective outer skin, making it highly susceptible to absorption. list of foods to buy organic 2017
: Testing showed approximately 97% of samples were contaminated with at least one pesticide. In 2017, the primary guide for choosing organic
: USDA testing discovered 69 different types of pesticides across samples. list of foods to buy organic 2017
: Ranked #1 for the second year in a row; one sample alone contained 20 different pesticides.
: High exposure due to being eaten whole, skin and all.
: Contained twice as much pesticide residue by weight as any other crop on the list.