I've seen "celebrity vegans" that looked okay, but who knows if they're being honest about their diets.  The only vegans I know IRL all became 300lb blue-haired feminists at the exact same time their diets changed.    The biggest change, other than their fat asses, is their skin.  They look very unhealthy and their skin is dull and greyish, and mottled and splotchy.  I have to think they are missing some essential amino-acids, etc, in their diets, though I'm not sure exactly what.    They've probably all figured out the B12 problem by now, but I don't understand why yeast doesn't get the same protection as pigs.  It's a living, breathing thing, isn't it?