Malnutrition is one of the world’s most serious but least-addressed development challenges. Its human and economic costs are enormous, falling hardest on the poor, women, and children. In 2020, 149 million children under five years old were??(low height-for-age), which indicates not only a failure to achieve one’s own genetic potential for height but is also a predictor of many other developmental constraints, including cognitive deficits and future economic opportunities, including impeding a country’s ability to accumulate human capital.