During this webinar, presenters shared the results of CORE Group and WI-HER LLC’s TOPS-funded Enhancing Nutrition and Food Security during the First 1000 Days through Gender-Sensitive Social and Behavioral Change Technical Resource Guide and Technical Brief. These materials were designed to strengthen the capacity of development practitioners working in nutrition and food security to plan, implement, and evaluate gender-sensitive social and behavioral change (SBC) programming in order to improve nutritional outcomes. This guidance was based on the 1000 Days approach, which prioritizes the critical period between a woman’s pregnancy and her child’s second birthday to maximize impact. Presenters shared an overview of the methodology used to conduct this work and present research findings, with a focus on sharing critical actions, best practices, and resources and tools to promote gender-sensitive SBC to improve nutrition outcomes within the context of nutrition and food security projects. In addition, we heard how the Alive & Thrive project implemented relevant gender-sensitive SBC programming to improve nutrition outcomes in Ethiopia.