Study Procedures
Mother-child dyads were assessed for eligibility using an eligibility criteria checklist, and those meeting the criteria were oriented on the study purpose and procedures by the LHVs using an informed consent form in the national language (Urdu). Those who gave written informed consent were included in the study, marking their first visit as the baseline visit. LHVs measured and recorded children's age (days), height (inches), and weight (kg) at baseline visits. The measurement of children's weight and height was done using standardized protocols and recorded on growth monitoring charts. The children with severe physical conditions were referred.