Does eating organic fruits and vegetables reduce cancer risk compared to conventional?

What's actually in it

Conventional fruits and vegetables are grown with synthetic pesticides, many of which leave detectable residues even after washing. The USDA Pesticide Data Program finds residues on roughly 70% of conventional produce tested each year.

Organic farming prohibits most synthetic pesticides. Organic produce still may have residues from older persistent chemicals in the soil or from neighboring farms, but levels are generally much lower.

What the research says

A 2026 study in Am J Clin Nutr followed participants in the NutriNet-Santé cohort, one of the largest nutrition studies in the world, and found that people who consumed more organic versus conventional fruits and vegetables had lower rates of cancer. The link was strongest for cancers associated with pesticide exposure.

This builds on earlier research from the same cohort that found organic food consumers had a 25% lower risk of cancer overall. The benefit isn't from more nutrients in organic food. It's about avoiding pesticide residues.

You don't have to go fully organic to benefit. Start with the produce you eat most often and items known to carry the heaviest residues: strawberries, spinach, apples, grapes, and bell peppers.