LAUSR

ABSTRACT Opinion leader research (OLR) has been widely used in public health to identify influential persons or organizations to affect health care practice, inform policy-making processes, and help shape communication strategies. We used OLR to gather information related to barriers and possible solutions to guide strategic engagement for strengthening policy making for improved maternal, infant, and young child nutrition (MIYCN) practices in 5 Southeast Asian countries—Cambodia, Laos, Indonesia, Timor-Leste, and Thailand. In most countries, MIYCN policies and policymaker interest exist, but effective implementation and/or enforcement of current policies is weak. This article aims to share our experience in and lessons learned from using OLR as an advocacy tool: It helped identify opinion leaders with interest and influence to affect nutrition-related policies, it raised opinion leaders’ interest in MIYCN, and it identified themes that would help generate political priority setting. Based on our experience, we recommend OLR as a strategic activity for informing and generating support for MIYCN policy-making processes.