Seems as though being THAT picky would be a full-time job! It's one thing to eat healthy & take a stand about not eating animals, but it would be outrageously difficult AND expensive to maintain that stringent a diet.
The OP is probably worried! <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" /> But I doubt most vegans would be that hard to please. No animal products should be just fine.