Skiing star Lindsey Vonn epitomized red carpet perfection, but the 29-year-old bombshell doesn't always feel perfect.

In an interview with Self magazine, Vonn confessed to occasional feelings of insecurity.

"It was hard to go to the Met Ball with people who eat lettuce and Diet Coke for dinner," Vonn said, speaking of the Metropolitan Museum of Art's Costume Institute Benefit annual gala, which is attended by the elites of the fashion and entertainment industries. "It's difficult to be at events with a room full of women who weigh half as much as you do. That's always tough."

Although attending the event alongside her golfer boyfriend Tiger Woods was tough, Vonn said she didn't feel envious of the stars "because so many of them are skinny-fat. They have more cellulite than most people. I feel like I need to give them a cheeseburger. It's sexy and beautiful to be strong."

What Lindsey Vonn Eats When She's Not Skiing

The term "skinny-fat" has been used to describe someone who, despite being at his or her ideal weight, may lack muscle or have too much body fat.

ABC News Nutrition and Wellness editor David Zinczenko offered some diet tip to achieve an overall balanced diet and help reduce the percentage of body fat:

- Eat food that are high in fiber (such as lentils, black beans.) They will keep you fuller for longer.

- Eat green vegetables. They are low glycemic index foods, which means they keep your blood sugar stable.

- Protein powder boosts metabolism. It can be added to a morning smoothie.

- Eat complex carbs, not the carbs that have been stripped of all their fiber.

- Walnuts and salmon contain omega-3 fatty acids, a healthy fat which has been thought to prevent cognitive decline.