This challenge has 6 strict rules participants follow for weeks on end.

But you should research before hopping into any program, including the now-viral 75 Hard Challenge.

What is the 75 Hard Challenge, you ask?

Woman Doing Intense Workout

Photo: Getty Images

(Notably missing among those titles is certified trainer, R.D., or licensed therapist.)

The idea has intrigued plenty of people.

The hashtags#75HardChallengeand#75Hardhave collectively accumulated more than 1.1 billion views on TikTok.

But are participants onto something and is the “discipline” Frisella claims participants will develop even possible?

Keep reading for what experts have to say about the 75 Hard Challenge.

What Are the 75 Hard Challenge Rules?

The 75 Hard Challenge consists of six rules that must be followed foryou guessed it75 consecutive days.

Did you break one of the rules?

Drink only eight glasses of water a day rather than the full gallon?

Skip your assigned reading?

Did you decide taking daily progress photos isn’t aligned with your wellness philosophy?

Tough luckthe 75 hard rules require you to start again from the beginning.

(Yes, even if you break a rule on Day 74.)

Is the 75 Hard Challenge Safe?

“What happens after a diet?

People frequently go back to their old ways leading to a reappearance of unhealthy behaviors.”

“The challenge is acting like a collection of arbitrary rules,” says Landry.

Landry also points out that the challenge’s one-size-fits-all approach doesn’t consider individual needs.

“The challenge is supposed to improve self-worth but this could be detrimental,” says Landry.

“Fitness should be individualized to a specific person.”

But ultimately, a balanced, flexible plan will be more effective and sustainable than a black-and-white approach.