Diet has long been linked with the development and progression of cancer, and indeed obesity is a clear risk factor for many cancers; however, teasing out the relationships between nutritional factors and cancer aetiology has proved difficult, complicating the development of dietary recommendations for cancer prevention. In this Review, the issues and challenges in diet–cancer research are discussed, including those relating to the design of epidemiological studies, dietary data collection methods, and factors that affect the outcome of intervention trials.
- Susan T. Mayne
- Mary C. Playdon
- Cheryl L. Rock
