If you are having trouble shedding your extra holiday season pounds, fear not, for even some celebrities go through such problems. And it is nothing new for them to struggle fighting off all the great food and drink.

Here we feature some celebrities who have chosen certain weight loss programs and even personally endorsed them.

Kelly Preston. This actress and wife of John Travolta shared with People magazine that she has lost about 39 pounds after giving birth last January. She thanks her dear friend Kirstie Alley for the weight loss program called Organic Liaison. She has also signed to be one of the official spokespersons of the program.

Kirstie Alley. From 2004 to 2008, this funny actress was the official spokeswoman of Jenny Craig. But in March 2010, she was able to launch her very own diet program called Organic Liaison. Last September, she lost about a hundred pounds.

Jane Lynch. After appearing in a Healthy Choice television spot, the popular actress and host also had her own commercial with the frozen entree line of the same company just this September.

Jennifer Hudson. After giving birth in August 2009, this Oscar-winning actress and singer started her journey with Weight Watchers. By April of 2010, she started becoming its spokeswoman and shared with CBS News that she has been able to shed a total of 80 pounds.

Marie Osmond is the current spokeswoman for Nutrisystem. She has been seen in a lot of its advertisements which she shares to everyone that she has been able to shed off a total of 50 pounds.

Check out the slideshow for more of their pictures.

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