Although input subsidies are a popular policy intervention in Malawi, it remains unknown whether they improve productivity of nutrient-dense crops such as legumes, dietary quality, and child nutrition. This study addresses this important gap by examining these questions empirically using a decade-long nationally representative panel data set and panel regression models. ​ We find that subsidizing legume seeds increases area planted with legume crops, overall gross value of production, production and dietary diversity, calories, and micronutrient—vitamin A and zinc—consumption. We further found that subsidizing legume seeds is positively correlated with child weight-for-age Z-score but not height-for-age Z-score.