This poster was presented at the SBCC Summit 2018 in Bali, Indonesia. The poster presents the key findings from the evaluation of Save the Children's child nutrition programme in Northern-Vietnam. The child nutrition programme was implemented at Thuong Xuan District in Than Hoa province in Northern Vietnam, was jointly designed as a community-based IYCF support group model with Alive & Thrive, as an SBCC intervention for the mountainous region.