All 34 countries with the highest rates of malnutrition are endemic for neglected tropical diseases (NTDs). This brief explores the relationship between, and opportunity to address, two types of NTDs — intestinal worm infections and schistosomiasis — and malnutrition. It makes the case for international development partners to scale up deworming treatments alongside efforts to improve nutrition and other determinants of health as a way to reach more people in need and ensure lasting impact.