Vegans are actually healthier. Vegetarians need to watch their protein levels but there's plenty of protein in eggs and cheese (which vegans are allowed to eat).
You've got that backwards, some vegetarians eat eggs and cheese but vegans don't eat any 'animal products' including honey (it's exploitation of the beeees, man).
You can get enough protein with a vegan diet, just make sure to combine grains (rice, wheat esp) with legumes (peas, beans). But you still have to pay a lot of attention to your intake.
Vegan diet is evolutinary correct (e.c.)
No. Humans are evolved to be omnivores (our teeth and digestive tracks are hybrids with carnivore and herbivore features). It's true that many people overdo the red meat but we're not evolved to thrive without it ether. No herbivore species that I know of can't produce all the amino acids it needs and can't digest cellulose (humans don't and can't).
As to the original question: A few years ago (like over ten) there was a famous case of a vegan mother who only wanted her children to eat raw fruits and vegetables and for a time her kids were taken from her (I think she got them back eventually). Maybe someone else remembers the details.