Consortium to Lower Obesity in Chicago Children (CLOCC)

The Consortium to Lower Obesity in Chicago Children (CLOCC) is a nationally recognized leader for community-based childhood obesity prevention. Founded in 2002, CLOCC supports thousands of partners to promote healthy and active lifestyles for children and families. Our efforts are changing environments, reducing obesity and making a lasting impact on the health of the city. CLOCC’s multi-sector approach emerged in Chicago and is being replicated and adapted for use across the country.

Focus Areas

The consortium is comprised of seven interest groups, each focused on a particular population, context or topic that is relevant to childhood obesity prevention. Consortium partners participate in interest groups for shared learning, to build professional networks and to shape the actions of the consortium. These include:

  • Early Childhood
  • Food Access
  • Health Promotion and Public Education
  • Physical Activity and the Built Environment
  • Policy and Advocacy
  • Research and Evaluation
  • School Systems

Key Strategies

CLOCC offers regular network meetings, trainings, workshops, and other events to advance partner knowledge and skills so that the best available approaches to childhood obesity prevention are implemented effectively in Chicago and beyond. 

To learn more about CLOCC’s activities, go to

Getting Involved with CLOCC

There are many ways and opportunities to get involved with CLOCC.

To learn about local events, receive our regular e-newsletter, or read about the best available research and interventions, join our mailing list at

For information on participating in CLOCC, contact LaShaun Hayes, at


Adam Becker, PhD, MPH, CLOCC Executive Director

Maryann Mason, PhD, Director, Evaluation and Community Research

Group Members/Staff

  • Lindsey Arenberg, MS, MPH, Community and Schools Program Manager
  • Anna Browar, MPH, Program Coordinator
  • Ashley Brummel, MBA, Fiscal Programs Manager
  • Katie Danko, MPH, Advocacy Program Manager
  • Eric Goodwin, Communications Manager
  • Linda Gordon, Program Coordinator, Healthy Corner Stores
  • Kirstin Grabski, Operations Coordinator
  • Gladys Hansen-Guerra, Community Programs Coordinator
  • LaShaun Hayes, Senior Administrative Assistant
  • Megan Hinchy, MPH, Program Coordinaor, Healthy Corner Stores
  • Dominique Johnson, Community Programs Coordinator
  • Katelyn Kanwischer, MS, Early Childhood Programs Manager
  • Katherine Nickele, Research Coordinator  
  • Elizabeth Gonzalez, MPH, CHES, Health Educator
  • Sarah B. Welch, MPH, Associate Director, Community Research & Evaluation


Here is a sampling of journal articles about issues related to childhood obesity that have been written/co-written by CLOCC staff members and/or that are about aspects of CLOCC's work:

Gustat J, Rice J, Parker KM, Becker AB, Farley TA. Effect of Changes to the Neighborhood Built Environment on Physical Activity in Low-Income African Neighborhood. Preventing Chronic Disease, 2012; 9:110165.

Nader P, Huang T, Gehagan S, Kumanyika S, Hammond R, Christoffel KK. Next Steps in Obesity Prevention: Altering Early Life Systems to Support Healthy Parents, Infants, and Toddlers. Childhood Obesity, June 2012; 8(3):195-204.

Becker AB, Christoffel KK, Morales MA, Combating Childhood Obesity through a Neighborhood Coalition: Community Organizing for Obesity Prevention in Humboldt Park. In: Benjamins MR, Shah AM, Whitman S, eds. Urban Health Combating Disparities with Local Data. New York, NY: Oxford University Press; 2011:171-196.

Evans WD, Christoffel KK, Necheles J, Becker AB, Snider J. Outcomes of the 5-4-3-2-1 Go! childhood obesity community trial. American Journal of Health Behavior, 2011;35(2):189-198.

Mason M, Welch SB, Becker A, Block DR, Gomez L, Hernandez A, Suarez-Balcazar Y. Ciclovìa in Chicago: a strategy for community development to improve public health. Community Development, 2011; 42(2):221-239.

Stahl CE, Necheles JW, Mayefsky JH, Wright LK, Rankin KM. 5-4-3-2-1 Go! Coordinating Pediatric Resident Education and Community Health Promotion to Address the Obesity Epidemic in Children and Youth. Clinical Pediatrics, March 2011; 50:215-224, doi:10.1177/0009922810385106.

Becker AB, Longjohn M, Christoffel KK. Taking on childhood obesity in a big city: Consortium to Lower Obesity in Chicago Children (CLOCC). Progress in Pediatric Cardiology, September 2008; 25(2):199-206. Advances in Childhood Obesity. ISSN 1058-9813, DOI: 10.1016/j.ppedcard.2008.05.004.