The studies showing that increased consumption of fruits and vegetables may help decrease the incidence of some types of cancer do not distinguish between organically grown and nonorganically grown produce; they were conducted with produce at least some of which contained pesticide residues
The studies may also be taken as showing, ttherefore, that there is no increased health risk associated with eating fruits and vegetables containing pesticide residues
Research shows that there is no greater longterm health benefit associated with taking vitamin supplements than with a moderate increase in the intake of fruits and vegetables. Clearly, then, there is no long-term health risk associated with the failure to take vitamin supplements, so long as enough fruits and vegetables are consumed.