You can watch his progress on TV series that resumes Tuesday night ABC 7.
Last season, Jamie Oliver helped change eating habits in Huntington, West Virginia, which has been called the unhealthiest city in America.
This time he's in Los Angeles, where he faced plenty of opposition, not from parents or kids, but from local bureaucrats.
He talked to entertainment reporter Sandy Kenyon. Check out his report.
Please visit Sandy Kenyon's blog for more entertainment news at wabc.typepad.com/whatsandysays