Hi Matt, excellent article and video – thanks for taking the time to share this!
To Michaela’s Copenhaver comments:
I am not sure eating fruits and vegetables really has anything to do with “moral superiority” as you put it. It’s simply an option, but one that clearly is working for Mike.
His “fervor in which he presents his diet” is clearly due to the results he’s getting. I would also be pretty intense and passionate on the subject if I believed fruitarianism enabled me to finish 29th in the New York marathon.
I work in the health industry and I haven’t met a single nutritionist that looks as healthy as Mike.

Michaela Copenhaver “I would like to see scientific evidence that his diet is, as he claims, “the healthiest form of veganism.”
Science is about gathering data based on observation and measurement. Scientifically a diet either works or it doesn’t. Mike is a living example of how the body responds when it is fuelled with the right diet. He would be in the top 1% in North America in terms of health, he puts his success as an athlete primarily down to being a plant based diet, as did Martina Navratilova, Carl Lewis, Edwin Moses.
Michaela Copenhaver “I also think it’s dangerous to present a single person’s experience as expertise in a topic.”
Dangerous? :-/ I think it’s pretty clear to everyone that this is an opinion piece, not a quote from a science journal.
Michaela Copenhaver “…what are your criteria for “clean” foods?”
Easy, they are the foods that makes your body feel and perform its best.
“Maybe Arnstein has more credentials than he lists on his website, but I wouldn’t trust him to give me dietary advice.”
Mike is not asking anyone to trust or believe him, nor is he stating he is an expert. He is simply showing by his lifestyle how fruitarianism has transformed his life for the better. It’s up to the thinking person to decide whether or not to investigate it further.