What is the role of diet in the etiology of non–small cell lung cancer (NSCLC)?

Updated: Jun 05, 2020
  • Author: Winston W Tan, MD, FACP; Chief Editor: Nagla Abdel Karim, MD, PhD  more...
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Answer

Dietary fiber and vegetables have been suggested as protective from lung cancer. Although diets rich in fruits and vegetables appear to be associated with lower rates of lung cancer, trials of supplemental beta-carotene, alone or in combination with vitamin E or retinyl palmitate, in persons at high risk for lung cancer found that this supplementation actually increased the incidence of lung cancers. [21]


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