If you grew up in the '90s, you remember the Food Pyramid. It's now outdated, but why hasn't the USDA provided better health guidelines?

Let the Mayo Clinic Healthy Weight Pyramid be your guide to making smart eating choices. It's pretty simple to use. The goal is to choose most of your food from the groups at the base of the ...

Chu, Michael, Regina Garcia-Cuellar, and Rosa Amelia Gonzalez. "Día Día Practimercados: Meeting the Daily Needs at the Base of the Pyramid (A)." Harvard Business School Case 313-071, August 2012.