Nutrition policy in the US: 50 years in review.

The world of nutrition has changed dramatically over the past 100 years. This presentation provides an analysis of how the lessons learned from prior nutrition interventions and public policies can be translated to address the current nutrition issues of populations globally. The formulation and implementation of nutrition policies is complex. Prior emphasis in US nutrition policies was in addressing problems of nutrient deficiencies and under consumption. While these problems still exist, worldwide problems related to dietary patterns and chronic diseases are emerging as more common. There are few "success" stories for interventions aimed at the prevention of diet related chronic diseases, particularly in urban areas. Newer paradigms for nutrition interventions, including public- private sector collaborations are presented. In addition, examples of effective, enabling policies are discussed.