While improved nutrition is central to achieving many development goals, investment in nutrition currently falls far short of what is needed. One group of actors that could potentially help address this is development finance institutions (DFIs): specialised financial organisations that promote sustainable development by providing capital, usually for private-sector-led projects. DFIs seem like promising actors to support nutrition: they are already active in low- and middle-income countries, invest in adjacent sectors like agriculture, and have large financial resources. However, to date DFIs have not been very active in investing in nutrition-supporting businesses and funds. This paper seeks to understand the barriers to investment in nutrition-related projects and develop concrete solutions to unlock funding through a mapping of DFIs’ approaches combined with in-depth interviews with several DFI representatives.