Informing a roadmap for cross-sectoral collaboration on portion size management as a national strategy to improve population nutrition - a Delphi study.

Background: Addressing food portion sizes is a key untapped opportunity to help tackle obesity. This study sought to inform the agenda of a national movement involving diverse sectors to manage portion sizes in packaged foods, restaurants, cafeterias and prepared foods in grocery stores.

Methods: A Delphi study was conducted with representatives from public health, private-sector food companies and academia that formed a panel of experts ( = 32).

Promoting prevention through the affordable care act: workplace wellness.

Public health in the United States can be improved by building workplace "cultures of health" that support healthy lifestyles. The Affordable Care Act (ACA), which includes the Prevention and Public Health Fund, will support a new focus on prevention and wellness, offering opportunities to strengthen the public's health through workplace wellness initiatives. This article describes the opportunity the ACA provides to improve worker wellness.

Transforming the healthcare system: a focus on prevention.

The U.S. healthcare system would better serve the population by focusing on health promotion and disease prevention.

Letter from America.

Elderly people are too often marginalised in society, but William Novelli describes how the US advocacy organisation AARP fights to remedy this