This is a joint call for proposals from the Robert Wood Johnson Foundation's Healthy Eating Research and Active Living Research programs. This call for proposals supports time-sensitive, opportunistic studies to evaluate changes in policies or environments with the potential to reach children who are at highest risk for obesity, including African American, Latino, Native American, Asian American, and Pacific Islander children (ages 3 to 18) who live in low-income communities or communities with limited access to affordable healthy foods and/or safe opportunities for physical activity.

Healthy Eating Research is a $16 million national program of the Robert Wood Johnson Foundation. The program supports research on environmental and policy strategies to promote healthy eating among children to prevent childhood obesity, especially among the low-income and racial and ethnic populations at highest risk for obesity. Findings will advance the Foundation's efforts to reverse the childhood obesity epidemic by 2015. The program is directed by Mary Story, PhD, RD, professor in the division of epidemiology and community health at the University of Minnesota School of Public Health.