The purpose of the COLON study is to provide a scientifically substantiated answer to the question whether nutrition and lifestyle affect the disease course of colorectal cancer.
To achieve this, we study diet and lifestyle of colorectal cancer patients shortly after diagnosis and during the years after treatment, and collect information on disease progression and survival. In the COLON study, we gather data on: dietary intake and physical activity level using questionnaires; we collect blood sample to facilitate measurement of e.g. biomarkers, nutritional status, metabolomics data. Moreover, we gather information on body composition using (diagnostic) CT-scans.