The 2026 Environmental Working Group’s Dirty Dozen list arrives as new research reframes pesticides within a larger system driving chronic disease, raising new questions about how consumers approach fruits and vegetables.
The latest Shopper’s Guide from the Environmental Working Group (EWG) lands alongside a more sweeping — and arguably more consequential — conversation about what, exactly, is shaping modern health risks. While EWG’s annual Dirty Dozen and Clean Fifteen lists continue to influence how Americans shop for produce, a newly published paper in the New England Journal of Medicine reframes the issue entirely, pointing to a broader system in which pesticides are just one piece of a much larger puzzle.
The EWG’s 2026 analysis, built on testing conducted by the U.S. Department of Agriculture, identifies a familiar group of fruits and vegetables with higher pesticide residues. Spinach, kale, strawberries, grapes, and stone fruits again rank among those with the most contamination, with 96 percent of samples in this category showing detectable pesticides.
At the other end, produce including pineapple, avocados, onions, and cabbage fall into the Clean Fifteen, where nearly 60 percent of samples contained no measurable residue.
Notably, this year’s data also highlights the presence of PFAS-linked pesticides, including fludioxonil, which appeared in 14 percent of all tested samples and in nearly 90 percent of peaches and plums. PFAS compounds are widely studied for their persistence in the environment and potential links to health risks.
“Consumers have a right to know what’s on their food,” Varun Subramaniam, a science analyst at EWG said in a statement. “This year’s findings underscore the presence of PFAS pesticides in the food supply. At the same time, the guide shows there are simple steps shoppers can take to reduce exposure while still eating plenty of fruits and vegetables.”
Diet and chronic disease
The pesticide findings come as a more expansive body of research examines how chronic diseases are accelerating globally. The recent paper in the New England Journal of Medicine identifies commercial products, including chemicals and pesticides, as significant contributors to rising rates of illness.
“The global increase in certain chronic diseases is startling,” said Nicholas Chartres, lead author of the paper and a researcher at the University of Sydney. “Increases in health-harming products mirror the rise in certain chronic diseases to a disturbing extent. Chronic diseases now account for 74 percent of deaths around the world.”
The study estimates that manufactured chemicals, including pesticides, contribute to 1.8 million deaths annually, placing them among five major commercial drivers of disease alongside fossil fuels, tobacco, ultra-processed foods, and alcohol. “To protect our health, it is critical to analyse and understand these corporate drivers of disease and how to curb their influence,” Chartres said.
The framing is notable. Rather than isolating individual consumer choices, the research places responsibility on systems of production and regulation, drawing a direct line between corporate activity and long-term health outcomes.
“Research on the tobacco industry provides a blueprint for identifying and counteracting other corporate influences on health,” Chartres added. “In the United States, tobacco-documents research led to sweeping policy changes including local tobacco bans, national and state tax increases, state and local smoke-free policies, and a federal investigation of the industry.”
He continued: “A significant drop in smoking occurred in high-income countries once the tobacco industry lies about the safety of their products were exposed alongside major anti-smoking campaigns. It is estimated that more than 37 million lives have been saved to date.”
“Clinicians, the public, media and policy makers need to understand that these health harming industries all apply the same set of tactics used by ‘Big Tobacco’ to create uncertainty about the harms of their products, delay regulation and therefore continue to profit from their sale – while we increasingly become sick from consuming them and ultimately pay the price with our health.”
“We must regulate these products like we have with tobacco,” he said.
Co-author Tracey J. Woodruff, of the University of California, San Francisco, added: “A clear solution to corporate drivers of disease is to enact similar restrictions on policy influence for all health-harming industries.”
Where that leaves your grocery cart
For consumers standing in the produce aisle, how much does any of this change what goes into your shopping basket?
Public health guidance continues to land in a relatively consistent place. Diets rich in fruits and vegetables are still strongly associated with better long-term health outcomes, including reduced risk of cardiovascular disease and certain cancers, according to the Harvard T.H. Chan School of Public Health. Patterns observed in longevity hotspots studied by Blue Zones reinforce that conclusion, with plant-forward eating habits consistently linked to longer lifespans.
Meanwhile, federal monitoring suggests that most pesticide residues found on produce remain within regulatory safety thresholds. The USDA’s Pesticide Data Program reports that over 99 percent of tested samples fall below limits established by the Environmental Protection Agency.
Organic produce can reduce exposure to certain residues, particularly those highlighted by EWG, but evidence that it significantly alters nutritional value remains limited. A meta-analysis published in the Annals of Internal Medicine found that “the published literature lacks strong evidence that organic foods are significantly more nutritious than conventional foods.”
The result is a kind of recalibration. The Dirty Dozen list offers a lens while the NEJM paper offers a broader critique, one that shifts attention toward systemic exposure rather than individual missteps. “Consumers have a right to know what’s on their food,” Subramaniam said. “At the same time, the guide shows there are simple steps shoppers can take to reduce exposure while still eating plenty of fruits and vegetables.”
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