We have very, very, very little primary sources info on the guy. (religion.blogs.cnn.com)
His own website admits such and it may even come from conventional cows - it doesn't give specific sourcing info. (wellnessmama.com)
Again, the sites I link to provide inconsistent info, so I'm looking for something more definitive (and preferably supported with reputable source info). (mechanics.stackexchange.com)