Shape Up for Summer and Beyond! The Oxygen Challenge Is Back

Now in its fourth year, The Oxygen Challenge 4 has helped thousands of participants all over the world transform their bodies and their lives. This summer, we are bringing you two of television’s most celebrated experts: Jen Widerstrom of NBC’s The Biggest Loser and Karina Smirnoff of ABC’s Dancing With the Stars!

As with our previous 90-day challenges, each coach brings her own expertise to the table to change the way you eat and train to get you the results you’ve always wanted. By signing up, you’ll get access to daily workout videos with step-by-step instructions as well as modifications and intensifiers for participants of all levels so you can customize the program to suit your needs. Plus, you’ll receive a nutritional plan to optimally fuel your workouts while shedding fat, tips to simplify meal prep, shopping lists and loads of delicious, healthy recipes you’ll make again and again.

And you won’t be doing it alone.

Through our inspirational online community, you’ll receive daily motivation and support. Past Challenge participants have raved about the “sisterhood” they have found on our exclusive, private Facebook groups, and many have become lifelong friends, supporting each other through the Challenge every single year!

Meet the Coaches

After two seasons as a coach on NBC’s The Biggest Loser, Jen Widerstrom knows how to motivate and inspire her team to break through long-held mental and physical barriers to shed fat and build muscle. Her do-anywhere plan features simple equipment, like dumbbells and a medicine ball, so you have no excuses to skip a workout.

As one of the beloved coaches on ABC’s Dancing With the Stars and a noted fitness expert, Karina Smirnoff has inspired millions to lose weight while having fun! Using dance as her foundation, Karina created unique workouts that feature strength training, yoga and even self-defense. Don’t worry if you have two left feet! Karina breaks down all the routines so you can learn a few new dance steps while getting fit. It’s a win-win!

So what are you waiting for? Start transforming your life and body now. 

Join the challenge today!