Michael Dorn (Star Trek's Worf) a Vegan

Oh, vegans do eat processed food.

If they're willing to eat a crappy vegan diet.

That doesn't take away from his pursuit of better health, of course, but it's a bit of a stretch to assume that once you start eating a strict vegan diet, your diet becomes "pure" and completely unprocessed.
 
I was reading about Star Trek:TNG in Wikipedia and came across this factoid about him.