Excess body weight responsible for nearly 4% of cancers worldwide
Prevalence has increased rapidly in most countries across all population groups
Policies, economic systems, and marketing practices that promote the consumption of energy-dense, nutrient-poor food, changing behavioral patterns that couple high total energy intake with insufficient physical activity, and human-built environments that amplify these factors are driving a worldwide rise in excess body weight, according to a new report. The report, appearing early online in CA: A Cancer Journal for Clinicians, a peer-reviewed journal of the American Cancer Society, says excess body weight accounted for approximately 3.9% of all cancers worldwide in 2012, a figure that will undoubtedly rise in the coming decades given current trends.
The review, co-authored by investigators at the American Cancer Society, Imperial College London, and the Harvard T.H. Chan School of Public Health, presents global and regional patterns in excess body weight, as well as factors driving the epidemic, a summary of the evidence linking excess body weight to cancer risk, and policy actions that could help address the issue.