Fitness expert Jillian Michaels from "The Biggest Loser"
Fitness guru Jillian Michaels is back on "The Biggest Loser" when the show returns in January. | AP file
FILE - This Jan. 6, 2012 file photo shows fitness guru Jillian Michaels in New York. "The Biggest Loser" will return in January with the weight-loss show's first young teen participants and trainer Jillian Michaels back on duty. NBC says the show's 14th season will take on a new "mission" against the national increase in childhood obesity. Young people between the ages of 13 and 17 will join teams trying to shed pounds and get fit. (AP Photo/Carlo Allegri, file)
While it may sound like a contradiction, Jillian Michaels wants you to live large. And that’s no small feat, which is why Michaels — probably best known as the fireball trainer on “The Biggest Loser” — has taken her motivational message to live your best …