Jillian Michaels transformed her own health years before transforming the lives and bodies of dozens of contestants on The Biggest Loser. She knows what it takes and is sharing her stay-slim tips and grocery lists exclusively with Dr. Oz!

View Part 1 of Jillian Michaels' Tips for Transformational Weight Loss.


View Part 2 of Jillian Michaels' Tips for Transformational Weight Loss.

Watch Jillian Michaels' stay-slim workout.

Get all of Jillian Michaels' tips for staying slim.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!