Whether or not you agree with Richard Simmons, it's promising when anti-obesity initiatives work. That appears to be the case in Philadelphia, where the results from a comprehensive healthy-eating campaign showed that "The number of kids who got fat during the two-year experiment was half the number of kids who got fat in schools that didn't make those efforts."

What was the secret? Enter libertarian paternalism:

"We found when you give children healthy choices, they pick them," said Grace McGinley, school nurse at Francis Hopkinson School, one of the test schools.

Call it a nudge, a push, a shove, whatever???schools are supposed to be in loco parentis, so I say be a nudging nanny and junk the junk food for good.

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