The Centers for Disease Control tell us that, over the past three decades, childhood obesity rates have tripled. Nearly one out of every five American children between the ages of six and 19 is obese. That doesn’t just mean a lifetime of health problems for those children—it means a public health crisis that we all pay for. We pay for it in billions of dollars in health care costs each year. And we even pay for it in military readiness, with at least 9 million young adults too overweight to serve in our armed forces, according to a coalition of retired senior military leaders.