Bertinelli: Staying thin harder than getting thin

40 pounds lighter, she has set a new goal: To run the Boston Marathon “One Day at a Time” was not only the title of the TV show that made Valerie Bertinelli famous, it’s also her mantra as she tries to maintain her headline-grabbing weight loss and tackles a Mount Everest-scale challenge in the form of the grueling, 26.2-mile Boston Marathon. Appearing with Meredith Vieira live on TODAY Monday, the still pixie-faced actress says now that the hoopla from her high-profile weight-loss campaign, carried out over two years in the course of her sponsor Jenny Craig’s TV commercials, has died down, she needs new challenges. So, she’s lacing up her running shoes. “I’m really going to do it,” she told Vieira proudly. “I’m training right now, and come April 19, four days before my 50th birthday, I’ll be running 26.2 miles.”... Read the full storyand share your secrets for keeping off the pounds below.Related stories:Video: Valerie Bertinelli on turning 50, dropping 50