Jamie Oliver took on Sarah Palin, comparing the former governor to a heavily-sugared kids cereal, RadarOnline.com has learned.

Oliver is attending the South Beach Wine & Food Festival and on Saturday spoke with admiration about the efforts of Michelle Obama to change American eating habits, especially the diets of children.

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The host of Jamie Oliver's Food Revolution minced no words in tackling former governor, former VP candidate, former reality TV star Palin for her criticism of the First Lady.

Palin has slammed the Obama administration's efforts to make school lunches healthier, saying that only parents not the government have the right to tell kids what to eat.

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"Clearly on this issue, she is a Froot Loop," Oliver said.

Oliver calls the nutritional needs of kids a "civil rights issues."  He's shooting a new season of Food Revolution in Los Angeles.

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TV chef Jamie Oliver and wife Jools welcomed their fourth child (and first boy) into the world Wednesday, RadarOnline.com has learned.

PHOTOS: Jamie Oliver Welcomes New Baby Boy

Oliver, 35, sent out a series of jubilant Tweets after the baby's birth.

"It's a baby boy guys!!! I'm shock[ed], we're all very happy, mum was amazing and both are well and happy x4 kids!!" he Tweeted Wednesday. "Mr Buddy Oliver .....full name to come from mum....big love joxx."