Anderson made the comments in a recent interview with PBN Founder Klaus Mitchell - which will be released soon on YouTube.
During the interview, the pair spoke about a range of topics - including the rise of vegan filmmaking.
Anticipated documentary The Game Changers - which is produced by Hollywood heavyweight James Cameron - looks at the health benefits of a plant-based diet.
It features a list of top athletes, including pro surfer Tia Blanco, NFL quarterback Lou Smith, weightlifter Kendrick Farris, world-famous strongman Patrik Baboumian, and superstar Arnold Schwarzenegger.
It has been described by top plant-based physician Dr. Michael Greger as the 'best of its kind' when it comes to health documentaries.
A quick look at The Game Changers
And Andersen agrees with Dr. Greger that the movie is outstanding, telling Mitchell that he watched it when it debuted at Sundance.
He said: "When you watch it, you'll definitely see a parallel to What the Health...It really takes it to that next level.
"It's not only about how you can thrive being vegan, but you can fully excel.
"It's going to change the whole athletics world - you watch this thing and you're going to want to go vegan. It does a great job."
There is no general release information available for The Game Changers at this time.