Michelle Obama says McDonald's decision to add apples to its Happy Meals is a positive step toward solving childhood obesity.

WASHINGTON — Michelle Obama says McDonald's decision to add apples to its Happy Meals is a positive step toward solving childhood obesity.

The first lady is heading a nationwide effort to reverse childhood obesity rates. She recently joined major retailers, including Wal-Mart, to announce plans to open or expand more than 1,500 stores over the next five years in areas without easy access to fresh produce.