From the L.A. Times: Mexico's First World Problem - Childhood (& Adult) Obesity ... and How the U.S. Obesity Problem Has Different Causes, and How to Address Them Originally uploaded by JoeBehrSoCal...supermarkets. None. Getting healthy food close to poor people - and pricing it to make it a viable alternative to junk food - is one of the most cost-effective healthcare reforms the U.S. could do.