'The Biggest Loser's Bob Harper Reacts to Jillian Michaels' Lizzo Comments (Exclusive)

Fitness expert Bob Harper spent a dozen years training contestants to lose a lot of weight in a short amount of time on the original, NBC incarnation of “The Biggest Loser,” a show he calls “the O.G. fitness reality series.” But in 2017 he suffered a major heart attack that had him rethinking his approach to exercise.

The Biggest Loser returns tonight with 12 new contestants and a ton of spirit.

It's time to receive a big dose of inspiration!

The Biggest Loser is back. Nearly four years after the reality show went off the air, USA Network is bringing it back — and it’s the perfect time.

The Biggest Loser results in the biggest transformations.

When USA announced that they were bringing back The Biggest Loser, there were many who hesitated and asked if it was a good idea. Rumors surrounded the original show about its premise being unhealthy and promoting an unsafe lifestyle.

Bob Harper knows a thing or two about having to change up your lifestyle. The longtime trainer suffered a heart attack in February 2017, and was forced to quickly make changes — and figure out what was happening with his body.

Change isn’t always a bad thing. The Biggest Loser has some major changes in store for the reboot series on USA — including many new faces.

When The Biggest Loser returns after four years off the air, it won't be the same reality competition series fans remember.

Jillian Michaels has reportedly ended her domestic partnership with ex-girlfriend Heidi Rhoades.

Jillian Michaels wants to prove that if you set your mind to something, you can achieve it.

Jillian Michaels is recalling her own weight loss.

Jillian Michaels is an advocate for self-love, but when it comes to obesity, she says "facts are facts."

Weighing in. Bob Harper and Jillian Michaels trained alongside each other for 12 seasons on The Biggest Loser — but that doesn’t mean he understands her opinion.

#Roommates, former “Biggest Loser” coach Jillian Michaels set Twitter on fire recently when she expressed some comments about Lizzo’s weight that caused an intense backlash. Things got so heated, that she took to Twitter to clarify what she said—but that didn’t help matters.

No “Juice” was lost in the making of this clap-back. None! In fact, Lizzo’s response to Jillian Michaels’ fat-shaming comments contained exactly the kind of NSFW stuff that her hit single references in the first place. In a new Instagram Story, the 31-year-old TIME Entertainer of the Year shut down the hateful comments circulating on social media about her size in the wildest way possible. “If my name is in your mouth, so is my p*ssy, bitch. Enjoy the flavor!” she said. Oop!

When the original NBC run of “The Biggest Loser” came to an end in 2016 after 17 seasons, it did so with an air of controversy around it due to claims about unhealthy weight loss methods on the show. Entering into its 18th season, now on USA, the format was tweaked for the 2020 audience.

Taking the high road. Lizzo’s response to Jillian Michaels’ comments about her health is subtle yet empowering.