On today's show, Dr. Oz takes you behind the scenes of The Biggest Loser to reveal the secret to losing big in 2013! In this sneak peek Dr. Oz is joined by trainer Jillian Michaels to talk about her return to the show.

Is This the Key to Ultimate Hydration?

See how electrolytes work in your body.

Is This the Key to Ultimate Hydration?

Whether you're trying to stay hydrated for your workout routine or rehabilitation, recovery and hydration is so important to keeping your body performing like it should. So how do you make sure that happens? You need electrolytes — the minerals that give electrical power to your body. What the video below to see how they get to work inside your body and how you seamlessly add them to your day.

Presented by USANA.