> Most vegetarians are such for ethical reasons, knowing it's harder to get adequate nutrition, and planning accordingly.

Getting adequate nutrition as a vegetarian isn’t difficult at all. Pick a random grain, a random legume, and a random vegetable, maybe throw in a salad, and you’ll average out to everything you need nutritionally.

It’s only a problem when you try to transform vegetables into non-vegetables. There’s nothing natural about eating massive amounts of a single part of any fruit or vegetable.

The same logic applies to explain why most juice is bad for you. It’s simply not evolutionarily sound to consume just the liquid portion of an entire bag of oranges or apples.

It applies to meat as well. A diet of only pork rinds isn’t going to work too well.