NCD Risk Factor Collaboration (NCD-RisC)
The Lancet, Vol. 387, No. 10026, pp 1377–1396, 2 April 2016
Underweight and severe and morbid obesity are associated with highly elevated risks of adverse health outcomes. The study, which offers an overview of global trends in mean body-mass index (BMI), expects that about 1/5 of all adults in the world will be obese by 2025. The authors say the study points to a need for global coordination on initiatives including the pricing of healthy vs. unhealthy food.