is it healthier to eat no meat?

[FlatAssembler]

Well, red meat is associated with increased inflammation. So are coconuts, though. And the evidence for white meat is not clear. I know of a person who has the Chron's disease whose doctor recommended her to be a vegetarian.

Well, that settles it.  One person.  Case dismissed.

Well, I haven't studied it that much. Even if a vegetarian diet does help with Chron's disease, it probably does nothing to prevent it (as it is probably caused by a combination of genetics and bacteria). So, the argument from colon cancer is still better, as far as I can tell.