I'm no guru, or even wed to any specific ideology. I am more like Lex, and on my own personal quest for what works for me, but it was b-12 deficiency that sent me from raw vegan to raw omni, and now I am doing it raw omni, low carb. That is a big transition for someone who used to eat his own weight in fruit every few months as his main calorie source.
The raw meat thing is so much easier as a lifestyle as well.