First Lady Michelle Obama says she dropped boxed macaroni and cheese from her family's diet after her daughter couldn't turn a block of cheese into cheese powder.

In an interview in the March issue of Cooking Light magazine, the first lady says Sam Kass, the family's former personal chef, had taken a stand against the boxed variety, which includes processed cheese powder among the ingredients.

"He said there's nothing wrong with mac and cheese, but it's got to be real food," she said, crediting him with helping to eliminate processed food from their diet.

Kass gave her daughter Malia, 8 at the time, a block of cheese and challenged her to turn the fresh cheese into powder. "She sat there for 30 minutes trying to pulverize a block of cheese into dust," Obama said. "She was really focused on it and it just didn't work, so she had to give up. And from then on, we stopped eating macaroni and cheese out of a box because cheese dust is not food, as was the moral of the story."

As she marks the fifth anniversary of her anti-childhood-obesity initiative, the first lady said it feels like there's "a new norm" in how families think about food and what's healthy.

Former model: Cosby made advances

A former fashion model and actress who appeared on one episode of "The Cosby Show" in 1988 is the latest of numerous women to accuse Bill Cosby of making unwanted sexual advances toward them. Helen Gumpel, formerly known as Helen Selby, said Sunday that Cosby made sexual advances and lewd gestures toward her while she was on the set. She said she was called to the show's set for what she thought was another audition shortly after filming the one episode in 1987. She said she was brought to Cosby's dressing room and he had her sit on a couch and handed her a drink. She said Cosby then stood in front of her with his crotch in her face. "I never thought of myself as a victim because I refused his advances," Gumpel said. "But my career was a victim." Cosby's lawyer did not immediately respond to an e-mail message seeking comment. The 77-year-old entertainer faces sexual assault accusations from at least 15 women. He denies the allegations and has never been charged with a crime.

phone records: Sheriff's investigators on Monday were contacting Bruce Jenner and other drivers involved in a fatal chain-reaction crash in Southern California to ask for access to their cellphone records. They're trying to determine if distracted driving played a role in Saturday's four-vehicle crash on the Pacific Coast Highway. A publicist for Jenner said that he was not texting while driving and the evidence will show that.

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