The Mtoto Mwerevu Stunting Reduction Toolkit is a resource for government and organisations involved in addressing stunting and broader nutrition issues in Tanzania. The toolkit was developed in conjunction with the Government of Tanzania (GoT) with funding from UK Aid as part of the Addressing Stunting in Tanzania Early (ASTUTE) programme. Its goal is to provide government, donors, non-governmental organisations, and civil society organisations (CSOs) with programming recommendations and tools to help implement successful multi-sectoral social and behaviour change (SBC) interventions aimed at preventing and reducing stunting.