USC Study Links Healthy Diets to Lung Cancer Risk
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- University of Southern California - Health Sciences researchers found that non-smoking lung cancer patients under 50 had an average Healthy Eating Index score of 65, above the national average of 57.
- Jorge Nieva noted that young non-smokers consuming more fruits, vegetables, and whole grains than average were more likely to develop lung cancer, a counter-intuitive pattern.
- USC Norris Comprehensive Cancer Center suspects pesticide residues on conventionally grown produce may contribute to rising lung cancer rates in younger adults.
- Women under 50 who have never smoked developed lung cancer more frequently than men in the same group and also tended to eat more healthy foods.
- Researchers did not measure individual pesticide exposure but estimated it using published data on residue levels in food categories like fruits and grains.
- The next phase of the study will analyze pesticide levels in patients' blood or urine to identify specific chemicals linked to increased lung cancer risk.
Why it matters: Young adults, especially women, who follow recommended healthy diets may face unintended risks if pesticide exposure is confirmed as a factor, potentially reshaping dietary guidelines and agricultural regulation. The findings challenge assumptions about food safety and could shift public health priorities before a preventable environmental cause becomes entrenched.
