the biggest loser

What happens when the world's most hard-core trainer suddenly becomes a mom of two? She softens up but doesn't wimp out. We sat down with Jillian Michaels for the scoop. Get ready to take your workout — and your life — to the next level fast!

Let the countdown begin: 3, 2, 1, shred! This workout is based on some of Jillian Michaels' fave moves from her high-intensity circuit class, BodyShred and can be completed in less than 30 minutes.

Rachel Frederickson admits that her efforts to lose 155 pounds may have been a little too enthusiastic.

Season-15 winner Rachel Frederickson’s weight loss is raising questions about how much is too much.

The Biggest Loser coach shares the most common mistake people make at the gym and the secret to dropping pounds in a half hour a day!