Swimsuit model Marisa Miller shares how she keeps her body in top shape for Victoria's Secret fashion shows and Sports Illustrated swimsuit shoots -- she eats naked.

"Eating smart is all about having an awareness of your body. The most obvious way to do that is by seeing it," explains Miller, who is making the leap to acting in the movie "R.I.P.D." with Ryan Reynolds. "So when you're trying to lose weight, spend more time wearing less. I don't think I could eat a plate of nachos naked -- could you?"

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Miller's other tips are more run of the mill; have brown rice and quinoa in the fridge to eat with vegetables and get small, individually wrapped chocolates to eat when a craving calls instead of large desserts.

But Miller also revealed one other surprising detail to Women's Health magazine.

"I'm very shy," she said. "I know it's weird for a person who models lingerie and swimsuits, but I don't like to be the center of attention!"