"Dr" Byrnes wasn't a medical doctor at all. He preached that cholesterol and saturated fat are not unhealthy. He died of a stroke at 40. Quack. Quack. Quack.
There are many refutations of his "Myths" essay on the internet and usenet. Let google be your guide.
There is also a wonderful site for anyone with vegan nutrition concerns:
Vegan Health.org : Home
It is written by Jack Norris, RD ( Registered Dietician - that is a real degree unlinke Byrnes matchbook degree in "alternative medicine ).
I'm a year older than Byrnes was at his PREMATURE death from a stroke. I feel great and have no sign of heart disease. Like Stephen Byrnes I am not a medical doctor either. So, all else being equal I will trust my judgement over his.