Young non-smoker lung cancer rates rise despite healthy diets
Scientists noted that young non-smoker lung cancer rates are rising at an alarming rate, challenging traditional views of the disease
Young adults under the age of 50 who have never smoked face a higher risk of developing lung cancer despite consuming healthier diets, according to preliminary research presented at the annual meeting of the American Association for Cancer Research. The unexpected study raised concerns that pesticide exposure from conventionally grown fruits, vegetables, and whole grains could play a critical role in the development of lung cancer. Scientists noted that young non-smoker lung cancer rates are rising at an alarming rate, challenging traditional views of the disease.
ScienceDaily shared the findings, which were compiled using research materials provided by the University of Southern California - Health Sciences. Researchers at the SC Norris Comprehensive Cancer Centre, part of Keck Medicine of USC, stressed that the results are preliminary and require further investigation before definitive conclusions can be drawn. The study evaluated 187 individuals who had been diagnosed with lung cancer by age 50, with participants providing details regarding their demographics, smoking histories, diets, and diagnoses.
Most participants had never smoked and were diagnosed with a biological subtype of lung cancer that differs significantly from the type typically caused by tobacco use. Commercially grown, non-organic produce and whole grains generally contain higher levels of pesticide residues than dairy, meat, and processed foods. The researchers highlighted previous studies showing that agricultural workers with long-term exposure to pesticides experience higher rates of lung cancer, which supports their current hypothesis.
Lung cancer has historically been associated with older adults, tobacco users, and men, with the average age of diagnosis hovering around 70 in the United States. However, these new findings align with a 2021 study from the Epidemiology of Young Lung Cancer Project and the Genomics of Young Lung Cancer Project, which also found that lung cancers diagnosed in patients younger than 40 represent distinct subtypes compared to older populations. Researchers now aim to conduct more relevant studies to identify the precise reasons behind the increase in young non-smoker lung cancer.
