The nutrition-sensitive fish agri-food systems approach was first introduced in Bangladesh, whereby innovative technologies for the production of carp and other micronutrient-rich small fish species were refined and integrated through community-based sustainable wetlands. The approach focused on aspects including the increased fish production and productivity, and consumption of micronutrient-rich small fish in the first 1,000 days of life. Building on the success and growing interest from the project implementation in Bangladesh, this project was developed with the aim to scale up and implement similar approaches in other aquatic-agricultural systems, in selected countries where fisheries resources have significant potential to improve food and nutrition security and livelihoods. Three countries were selected for this project, namely Cambodia, Zambia and Indonesia.