China's colorectal cancer burden and dietary risk factors: a temporal analysis (1990-2021).

Background: Colorectal cancer (CRC) is a major global and Chinese public health issue, and dietary factors are controllable risk factors. However, China's CRC epidemiological trends and diet-attributable analyses based on the latest global burden of disease (GBD) data remain incomplete. This study systematically assessed China's CRC disease burden (1990-2021) and temporal trends in diet-related risk factors via GBD 2021 data to inform precision prevention.