Actually, large numbers of people have allergies and intolerances that would be aggravated by a 'typical' vegan diet.
Absolutely, unequivocally untrue. If you insist on claiming this is true, please provide independent, reputable sources. Why is typical
in quotes? And just what is a typical vegan diet?
All human populations throughout history have had animal protein and products as a significant part of their diet, so only some people can adapt to the 'new' vegan diet.
Again, absolutely and unequivocally untrue. In fact, most Asian cultures have very small amounts of animals in their diets. Even a quick search will turn up countless sources to verify this. Take a moment from your life and do some research. There is no adaptation required, since humans do not need to eat other animals in order to be healthy.
And why did you put the word new
There can be vast differences between the way people's bodies react to different foods, these can have a genetic basis, and "better nutrition" isn't always the simple cure-all. It's extremely important not to paint everyone with the broad brush of thought that veganism is suitable for everyone. It's not.
The first part of that paragraph is true. The second and third sentences don't really make much sense because no one has said veganism is suitable for everyone except in terms of providing all the nutrients for a healthy body. It may not be suitable for someone who isn't interested in compassion for other beings, having a healthier body, doing a bit more for the environment, or simply not wanting to for whatever reason(s) s/he might have.
For those that it DOES work for, great! For others, Weston A Price has provided the answer to many of their allergic/inflammatory responses, as has Paleo, and Keto. Each person should be free to find what works best for them as an individual.
The Paleo diet is a fraud, since no one really knows for sure
what anyone ate 20,000 years ago. It's as loony as the blood type diet, with no independent and replicated research to support it. Here's just one article on the paleo nonsense, which was originally in Scientific American
As for keto, there is some anecotal evidence that it might
be helpful with some cancers in some people and dogs. Beyond that, it's not a healthy diet at all, particularly in the long run. I suspect there are other ways to do to cancer what keto seems
to do sometimes
What works for allergic and/or inflammatory responses is identifying the cause and then going from there. There are no studies on WEP, paleo or keto that follow good science (using scientific method, long-term studies, independent replication).
You're 100% right that everyone "should be free to find what works best for them". But you've forgotten on thing: they already are. Sadly, though, too many give too little thought to what works best for the sentient beings they torture and consume.