Jillian Michaels fat as a kid? Yep, Jillian Michaels says she was a fat kid – although I don’t think this is necessarily new information. In the video clip above, Jillian Michaels speaks about being overweight as a child and how she chose to become a personal trainer.

Of course, Jillian Michaels admitting she was a fat kid gives her a lot of cred as a trainer on both “The Biggest Loser” and her upcoming new series, “Losing It with Jillian.” After all, look how fit she is now!

On her new reality series, “Losing It with Jillian,” she’ll move in with different families each week and put them on the road to health and fitness.

So, just how fat of a kid was Jillian Michaels? As a teenager, Michaels said she weighed 175 pounds at 5 feet tall.

“Losing It with Jillian” will begin airing on NBC in 2010.