This summary presents the major findings from a mixed methods impact evaluation study conducted in Bangladesh (Rangpur district) and Nepal (Rupandehi and Kapilvastu Districts) in 2021. This impact evaluation was coordinated by CARE and led by its research partners, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) in Bangladesh and Emory University & Interdisciplinary Analysts (IDA) in Nepal.