Dr. Boysen’s research interest has been in understanding the interplay between chemical exposure and nutritional or other lifestyle habits, such as diet selection and physical activity and how these and be used to improve prevention and treatment of lung cancer. To achieve this, he utilizes analytical chemistry tools to study carcinogen metabolism, how this is modified by nutritional components and the underlying mechanisms regulating corresponding enzyme activities. More recently he has focused on common metabolic pathways, using targeted and untargeted mass spectrometry-based metabolomic approaches to improve diagnosis and treatment of lung cancer.