There is a keen awareness among many consumers that pesticide chemicals frequently reach consumers in the form of food residues. This awareness can be troubling to many consumers since pesticides are typically used because of their ability to harm biological organisms such as insects, plant diseases, and weeds. Their presence in foods introduces the question as to what risks, if any, are consumers facing as they consume ubiquitous pesticide residues in their diet. Because of safety concerns, consumers frequently receive advice from advocates concerning whether one should eat conventional or organic foods, which conventional fruits and vegetables one should consider avoiding, which geographical sources of foods should be avoided, and what one could be doing to reduce exposures to pesticides by washing, peeling, cooking, or scrubbing foods before they eat them.