The big problem is it's such a misrepresentation of the science. Layne Norton does an excellent job of breaking down the issues:
https://www.biolayne.com/articles/research/the-game-changers-review-a-scientific-analysis/
Has anyone watched this on Netflix yet? I'd be interested to know if it actually has any effect on anyone who class themselves as a complete carnivore ...
My biggest criticism is that actually athletes tend to be genetic freaks. Michael Phelps is a good example, I mean even Carnivore diet proponent Dr. Shawn Baker is a genetic freak, he's much taller than average at the very least. His body gives him an athletic advantage in indoor rowing (much like how strongman Brian Shaw is tall and held an unofficial indoor rowing record). They are athletes regardless of diet, instead of because of diet. Zach Bitter is an example of a very low carb ultra marathon runner, his diet may help (there's science by Dr. Stephen Phinney and Jeff Volek to support this) but he's also probably suited to this sport.
I now mostly follow a meat-based diet with few carbohydrates (mostly coming from yoghurt and milk) and practically no vegetables, I was vegetarian for 7~ years and almost vegan at points. I will say my diet was not perfect and could have been better. I realized my health wasn't good and that morally it was silly (1 Vegan saves a cow every 260~ days based on the caloric needs of the average man but it's ok to kill critters for crop farming? Silly, and the whole environmental argument is flaky). One could even argue I'm more 'vegan' now as I buy most of my meat from a local farm butchery. I started with Keto, it's actually been the first time I had energy to go to gym. No longer hangry, no longer always waking up tired, never bloated and not skinny fat anymore. Everything is even better since I cut fiber, despite what cereal boxes would have you believe (Dr. Paul Mason has some good points on fiber in his youtube talks). There are some pretty remarkable anecdotes on meatheals.com, also interesting to read about Vilhamjur Steffanson...
The vast majority of health improvements seen can be achieved by cutting sugar and inflammatory oils (canola/margarine/soybean oil) from your diet though and that's why people tend to 'feel better' on vegan diets. It's also because to some degree they are mimicking fasting by often quite a large reduction in calories. That's often the initial 'training wheels' issue new vegans have, they simply don't realize they aren't eating enough. Other issues exist such as people not being able to convert beta-carotene to Vitamin A, Lack of Vitamin B12, D3, Creatine (where studies show it has the greatest effect on vegetarians) etc.
One thing I would have liked them to show is how much more food you have to eat as a Vegan. Most vegans are vegan because of ethics/politics rather than health so it's more a cause to convert for the cause than anything else...your health doesn't matter to vegans, in fact vegans rarely often care about farm workers (such as the cashew nut workers). The vegan position on honey is ridiculous too, as it's a similar type of farming method, necessary to produce a wide range of produce including avocados.
