This report synthesises the research conducted in Cambodia, Guatemala, Kenya and Uganda. It presents the nutritional profile and policy environment for each country, and discusses how adolescence is defined in different settings. Key cross-cutting themes are presented, and as trends varied within and across the four countries, certain local specificities are detailed. Themes are clustered around food and nutrition (food sources; diet and food consumption; food responsibilities; and food status and aspirations) and factors affecting adolescent nutrition (income-generation activities; climate and agricultural practices; social norms and restrictive food practices; security, substance abuse and alcohol; education and school attendance; sexual and reproductive health; and services delivery issues). In comparing and contrasting the country-specific studies, a number of core recommendations emerged: to strengthen the visibility of adolescents; to influence adolescent nutrition; to engage with adolescents; to identify platforms for engagement; and to maximise key entry points for strategic partnership. By combining the formative research findings and stakeholder mapping, evidence-based recommendations have been designed to improve nutrition-specific and nutrition-sensitive interventions for adolescents, and to highlight opportunities for adolescent engagement regarding nutrition.