In a surprising departure from traditional health advice, new research suggests that younger Americans who eat a healthy diet may be at increased risk for lung cancer.
The study, presented by the USC Norris Comprehensive Cancer Center at the annual meeting of the American Association for Cancer Research, identifies a potential link between high produce consumption and lung cancer in nonsmokers under age 50.
Researchers believe the culprit is not the food itself, but pesticide residues found on commercially produced non-organic vegetables, fruits and whole grains.
The Epidemiology of Young Lung Cancer Project analyzed 187 patients diagnosed before age 50, revealing several clear trends. Patients had an average Healthy Eating Index (HEI) score of 65, significantly higher than the national average of 57.
Participants consumed an average of 4.3 servings of dark green vegetables daily. In addition, women are diagnosed with lung cancer more often than their male counterparts in the same age group.
Although the average age of onset for lung cancer is 71, this study highlights a disturbing rise in the number of cases among never smokers. Despite the overall decline in smoking rates in the US since the 1980s, non-smoking women under the age of 50 have emerged as a high-risk group, for reasons previously misunderstood.
“This work represents a critical step toward identifying modifiable environmental factors that may contribute to lung cancer in young adults,” Nieva said.
Nieva cautioned that the study estimated pesticide exposure based on food categories rather than direct testing. The next phase of research involves measuring pesticide levels in patients’ blood and urine samples to identify specific chemicals linked to cancer risk.
The study’s findings suggest that for young health-conscious consumers, the source of their produce and how it is grown is as crucial as the nutrients they provide.
