The numbers are hard to ignore. Around the world, 48 million children experience stunted growth, 45 million suffer from wasting, and nearly half of all children who die every year die from malnutrition. “Even for kids who survive [malnutrition], their ability to be physically and mentally at their full potential is such a big thing for their quality of life and that of the country they live in,” says Bill Gates, co-chair of the Bill & Melinda Gates Foundation.