** FILE ** Second-grader Jonathan Cheng (center) looks at fruits and vegetables during a school lunch at Fairmeadow Elementary School in Palo Alto, Calif., on Dec. 2, 2010. (Associated Press)

Photo by: Paul Sakuma

** FILE ** Second-grader Jonathan Cheng (center) looks at fruits and vegetables during a school lunch at Fairmeadow Elementary School in Palo Alto, Calif., on Dec. 2, 2010. (Associated Press)