Michelle Obama's health campaign

First lady Michelle Obama visits a Walgreens store that sells produce on October 25, 2011 in Chicago, Illinois. The visit was part of the first lady's 'Let's Move!' initiative, which is designed to promote healthy eating and lifestyles in low-income areas. While visiting the city the first lady also took a tour of an urban farm.

(Photo by Scott Olson/Getty Images)

First lady Michelle Obama visits a Walgreens store that sells produce on October 25, 2011 in Chicago, Illinois. The visit was part of the first lady's 'Let's Move!' initiative, which is designed to promote healthy eating and lifestyles in low-income areas. While visiting the city the first lady also took a tour of an urban farm.

(Photo by Scott Olson/Getty Images)