This blog post describes how three recent studies used FarmDESIGN, a farm-household modeling tool, to help researchers analyze smallholder farms in Vietnam and Kenya. Although smallholder farmers are critical to food production in low- and middle-income countries, many are nutritionally vulnerable. To support better nutrition outcomes, it is important for researchers and programmers to disentangle complex agriculture-nutrition linkages at the household level. The authors suggest that using a modeling tool like FarmDESIGN can be a good way for decision makers to understand “trade-offs and potential outcomes” of agricultural interventions at the household level.