Celebrities who have lost weight

14 of 40: Lauren Alaina, who placed second on "American Idol" during the recent 10th season, revealed that she has dropped 25 pounds over the past five months.

The singer, who is 5 foot 7 inches tall, told Us Weekly magazine that she used the meal delivery service Sunfare to ease into a diet that was high on proteins and low on carbs.

"I eat an egg-white omelet for breakfast, shrimp and veggies for lunch and chicken with asparagus for dinner," the 16-year-old country and pop singer said, adding that "lots of squats have also helped."

(Pictured: Lauren Alaina performs in front of the judges on 'American Idol' on an episode that aired on Jan. 27, 2011. / Lauren Alaina performs on 'Good Morning America' on October 11, 2011.) (FOX / Michael Becker / ABC / Heidi Gutman)