Not to mention that of all of the hunter gatherer tribes ever studied, there has never been a single vegetarian group discovered. Not. A. Single. One.
The selective pressure of food scarcity is far different from the current selective pressure
practically impossible to get enough calcium from real food from vegan sources (you’re stuck taking medicine for it in the form of supplements or eating artificially fortified sources, like soy milk).
I don't see why this disqualifies it? A calcium supplement is extremely chemically simple
Reminds me of homogeneous coordinates in projective spaces