Perhaps the most inspiring celebrity weight loss story comes from Jennifer Hudson who went from being a size 16 to a size 6 (credit: Getty Images).
Another inspiring celebrity weight loss story comes from Al Roker, the weather man people loved to see in the morning. The newsman lost over 100 pounds (credit: Getty Images).
This funny man and The Price is Right host lost nearly 80 pounds during his quest to transform his health (credit: Getty Images).
Kelly Osbourne dropped an astonishing 50 pounds over the last year. As of November, she was a size 2 (credit: Getty Images).
Marie Osmond lost about 40 pounds in less than a year and credits her successful weight loss to the Jenny Craig program(credit: Getty Images).
Actress Valerie Bertinelli lost 50 pounds after staying committed to a Jenny Craig diet and workout plan (credit: Getty Images).
Since winning the fourth season of American Idol, singer Carrie Underwood attributes her 20-pound weight loss to a steady workout and a vegetarian diet (credit: ROBYN BECK/AFP/Getty Images).
Disney star Kyle Massey shed more than 10 pounds and lost eight inches on his waistline since appearing on Dancing with the Stars on ABC (credit: Getty Images).
Oprah Winfrey has battled with her weight publicly since the eighties, weighing the most in the early 1990s. She lost over 150 pounds in 2005, putting her at a toned 160 pounds. However, Oprah gained some of that weight back in the past few years (credit: Getty Images).
Some people have had some negative things to say about Star Jones' weight loss, but the television personality says she feels greater than ever. Jones lost nearly 160 pounds and after years of keeping it in, she opened up about her weight loss struggles and her decision to go through gastric bypass surgery (credit: Getty Images).
Actress Kirstie Alley has struggled with weight loss for years. She has even made fun of her weight struggles on a Showtime Network series called "Fat Actress." Her weight has fluctuated over the years (credit: Getty Images).