Raw vegan diets are so difficult to maintain. I have been vegan in the past, and even tried raw vegan, but it was not doable for me. I went back to animal foods as I felt deficient raw vegan. The fact that people often need coaches to help them maintain such a plan tells me that it is not a good choice. The fact that certain vitamins like A (true vitamin A, not beta carotene which some people cannot convert to retinol), B-6, B-12, D , fat acids and maybe others are not found in plant foods but are needed by humans, is evidence that we need some animal foods in our diet. The problems of hair loss and tooth decay often found in long term raw vegans demonstrates that it obviously is not an optimal or even sufficient diet for humans.
And the gobs of food you must consume to eat adequate calories is insane! With higher food prices, I would bet that raw vegan diets will lose their appeal in the near future. I mean, red bell peppers cost about $4 a lb now for me. So does grass fed ground beef. I get 40 calories and some vitamin c with the lb of peppers but hundreds of calories and a load of nutrients from the beef. If I eat that beef raw, then I get even more nutrients and calories (ask Tyler about more calories in raw meat, as I still struggle with that concept).
I am free to concentrate on things other than food on a raw paleo diet, whereas on raw vegan, I was eating or thinking about it all the time! And I am slimmer now than I have been in years, though I only have been about 15 lbs overweight in the last several years. I have less than 10 lbs to lose now! It is interesting, Kyle, that men get skinny and lose all their muscle, yet women can stay chunky (probably due to less muscle and more fat naturally).
Protein is so vital for us to have. How much and what types of plant foods would you need to meet minimum requirements? Nuts and seeds are the only high protein choices for the raw vegan, and they can cause allergies, have high PUFAS and no DHA. Lex is right about animal foods being superior in the protein department.