METHODS
APPENDIX
This study used a novel standardised costing approach that contributes to gaps in the literature on the costs of multisectoral nutrition programmes (Margolies et al., The cost analysis was conducted from the payer and societal perspectives. The analysis included costs incurred by BRAC, frontline workers and programme beneficiaries. Costs related to third‐party external research were excluded. The SEEMS‐Nutrition framework uses a four‐step approach. Costs are aligned with a multisectoral nutrition typology that identifies resource use and outputs along the programme impact pathways to achieve standardised unit costs and the basis for benchmarking and economic evaluation. Step 1 aligns the TRAIN programme to a typology of nutrition‐sensitive value (NSV) chain interventions that (1) increase the supply of nutrient‐rich foods, (2) increase the demand for nutrient‐rich foods, and (3) promote the enabling environment for nutrition. Step 2 maps the programme impact pathways to clearly articulate the linkages from activities to outputs and outcomes. Step 3 identifies all activities, inputs and costs along the impact pathway. Step 4 identifies outputs and outcomes for each activity to define the components of total and unit costs. The four‐step framework estimates the direct intervention costs and opportunity costs associated with all programme activities.Multisectoral nutrition approaches may include one or more of the intervention typologies with different components, services and outputs. Therefore, it is important to clearly define the unit cost for one or more outputs. Supporting Information: Appendix Table 