The real challenge for a vegan is getting vitamin B and omega-3s, but you can get those in a vegetarian supplement.
There are two kinds of worries - those you can do something about and those you can't. Don't spend any time on the latter.
I've seen so many people in this business that made a fortune. They get old and broke and can't make any money. I tell you something... no one's going to play a benefit for Jimmy Dean.