New peer reviewed study links consumption of high residue produce to elevated pesticide levels in the human body

A new EWG study finds that eating high residue produce like strawberries and spinach raises pesticide levels in the body, posing risks to public health.

By: AXL Media

Published: Mar 5, 2026, 3:34 AM EST

Source: The information in this article was sourced from Environmental Working Group

Direct Link Between Diet and Chemical Exposure

A sweeping study has confirmed that the types of fruits and vegetables an individual consumes directly influence the concentration of pesticides circulating in their body. Conducted by scientists at the Environmental Working Group and published in the International Journal of Hygiene and Environmental Health, the research found that individuals who frequently eat produce known for high chemical residues show significantly higher levels of these substances in their urine. While medical experts emphasize that produce remains a cornerstone of a healthy diet, these findings highlight a hidden trade off for consumers who primarily choose conventionally grown items that are prone to contamination.

Methodology and Federal Data Integration

To quantify the relationship between food and chemical exposure, researchers analyzed data from nearly 2,000 participants in the National Health and Nutrition Examination Survey. The team combined these dietary records with U.S. Department of Agriculture tracking of pesticide residues on various crops. By developing a dietary pesticide exposure score, the scientists were able to estimate individual risk based on the frequency, amount, and relative toxicity of the chemicals detected. This score was then compared against 15 specific biomarkers in participants' urine representing major pesticide categories such as organophosphates, pyrethroids, and neonicotinoids.

Specific Crops Identified as Exposure Drivers

The analysis revealed that certain popular fruits and vegetables are major contributors to an individual's chemical burden. Strawberries, spinach, and bell peppers were identified as high residue items that correlate strongly with elevated pesticide biomarkers. Interestingly, the link between produce intake and chemical levels became much clearer once potatoes were removed from the dataset. Researchers noted that because potatoes are consumed in many diverse forms, estimating their specific contribution to pesticide exposure requires more complex modeling and further investigation.