This document outlines a plan to address obesity in Mexico through nudging cafeteria guests to make healthier food choices. It discusses placing "demo" meals with nutrition facts at the entrance, adding a salad bar before non-healthy options, and using publicity to promote healthier meals. An experiment will test factors like demo meal placement and having meals ready vs made-to-order. Guest food choices will be tracked and regression analysis used to see which manipulations best encourage healthy eating. The goal is to develop healthier habits through nudging in the decision-making process.