[devinhelton]

Every book taking a stance on a controversial subject is going to have those kinds of criticisms from the opposite side. It doesn't make those criticisms true.

I don't endorse the book or her particular worldview 100% but I believe she does bring some true evidence to light about the good aspects of meat.

[michaelmrose]

The criticism doesn't appear to merely come from some "opposing side" but also from disinterested observers without a particular dog in the fight.

Her only stated expertise outside of a high school education is that she spent multiple decades unhealthy because she decided to adopt a lifestyle choice and didn't bother to simultaneously read about how to eat a healthy diet without eating meat. Instead of figuring out how to eat vegetarian without being unhealthy or simply returning to a balanced diet she has decided that we ought to somehow get rid of almost all people and go back to being hunter gathers.

The problem is that she is a writer who writes about a broad range of topics she has no understanding of. Knowing how to put words together effectively can grant one an audience but it doesn't grant one any sort of expertise. She is a crank.