One doesn't need to question whether a film is worth watching if the name James Cameron is associated with it. The Titanic and Avatar director has executive produced a new documentary slated for release in fall 2018. The film, going by the name The Game Changers is out there to prove that the most advantageous diet for athletes is a plant-based one. Yes, as bewildering as it may sound, a plant-based diet is the best not only for athletes but for anyone wanting to improve on their health. So move over meat, vegetables are taking over.

It is interesting to know that Dotsie Bausch, a seven-time U.S. national cycling champion, Patrik Baboumian, the former Germany’s Strongest Man who holds multiple world records, Scott Jurek, who ran the Appalachian trail in 46 days, eight hours and seven minutes, and Arnold Schwarzenegger, all have one thing in common – a plant-based diet.

With its fast stated facts, slick science and celebrity testimony, this 88-minute documentary will surely change your perception of food and how.

“When I first saw the study that indicated Roman gladiators were eating almost exclusively plants, I thought it had to be bs”, says James Wilks, a special forces trainer, winner of The Ultimate Fighter and the star of The Game Changers. “After thousands of hours of research, [I realized that] everything I thought about nutrition—eating meat and eggs and milk for your bones—was totally untrue . . . I was shocked.”

What was once a passion project for Wilks, a way to recover as quickly as possible after an injury took him out of the ring and onto the couch, with plenty of time to poke around the Internet, swiftly became a personal mission. About midway through his research, his father, a healthy, active meat eater, had a heart attack and required emergency surgery that left him with two stents and few options. Wilks’s shock quickly morphed into anger, directed towards a meat industry that, he says, has been profiting off the foods that may increase the risk for preventable diseases such as heart disease, cancer and diabetes.

“I knew there was protein in plants, but I always thought it was incomplete, that you couldn’t get the amino acids that your body requires,” says Wilks, who says the largest study ever done between plant-eaters and meat-eaters found that vegans get 70 percent more protein than they need. “And that’s just regular people eating regular, plant-based foods—not [professional] athletes.” What’s more?

According to the co-chair of NFL Cardiovascular Health, Dr Robert Vogel, a plant-based meal improves the body’s endothelial function, which allows for more blood to flow in the body, a key advantage for any athlete-in-training who is consistently damaging, repairing, damaging and repairing their muscles. Vogel gave one plant-based meal and two meat-based meals to three Miami Dolphins, and results showed the veggie eater had a crystal-clear blood sample, as opposed to the carnivores, whose results came back cloudy. Meaning, if a single meal can affect blood flow, what can a lifetime of eating meat for meals do?

Ultimately, this documentary busts the myth ‘real men eat meat’. Wilks calls out carnivorous corporations like McDonald’s for perpetuating the myth in their own marketing that meat makes you more of a man while claiming that very line of argument for itself.