Sarah Palin has dissed George and Barbara Bush as elite “blue bloods.” Now, the 2008 vice presidential nominee and former half-term Alaska governor is taking out after a new target – Michelle Obama.

Palin is using her reality TV show and right-wing talk show appearances to take out after the First Lady’s campaign against childhood obesity.

“Take her anti-obesity thing that she is on,” Palin said on the Laura Ingraham Show. “She is on this kick, right. What she is telling us is she cannot trust parents to make decisions for their own children, for their own families in what we should eat.

“Just leave us alone, get off our back.”

On “Sarah Palin’s Alaska” last weekend, Palin is shown preparing a dessert and saying:

“Where’s the s’mores ingredients? This is in honor of Michelle Obama who said the other day we should not have dessert.”

Palin was apparently going after Michelle Obama for a recent remark in which the First Lady said: “The problem is when things get out of balance, when dessert is practically a food group.”

The campaign on childhood obesity has come in reaction to recent, startling figures from the Centers for Disease Control.

The CDC has reported that the percentage of obese children, aged 6 to 11, has soared from 6.5 percent to 19.6 percent since 1980. The percentage of obese teens has climbed from 5.0 percent to 18.1 percent.

Researchers have reported a corresponding climb in Type 2 Diabetes among the nation’s young.

The anti-obesity campaign has Republican champions, notably California Gov. Arnold Schwarzenegger. Michelle Obama has appeared on the Fox News program hosted by former (and future?) GOP presidential candidate Mike Huckabee.

But the campaign for healthy eating has provoked angry words from the far right.

“Get away from my French fries, Mrs. Obama, Fox News’ Glenn Beck recently declared, adding with his customary dignity: “First politician that comes up to me with a carrot stick, I’ve got a place for it. And it’s not in my tummy.”