So I'm going to try this....

[WingedWolfPsion]

I agree--Vegans invariably develop nutritional deficiencies and fall ill. It simply isn't natural. Humans are very adaptable animals, but over a long period of time, limits will be reached.

Eat HEALTHY, and you'll be healthy. That means eating lots of fresh vegetables, a bit of fruit, a bit of properly raised meat (grass-fed beef, fish, pastured chicken, etc), and maybe a bit of whole grain. Don't believe the government food pyramid (but you knew that already). Avoid JUNK FOOD. The problem isn't adding meat, eggs or milk to your diet--the problem is the JUNK FOOD--the grain fed meats, the processed garbage, white bread, excessive sugar, etc etc.

If you aren't able to control your craving for junk food, no raw vegetable diet in the world will save you.
You want to know what the key is?
Don't deprive yourself of the stuff. Actually permit yourself to have something junky that you crave at least once a day--in SMALL quantity. A little square of dark chocolate (healthy), a half scoop of ice cream, whatever. Psychologists will be quick to tell you that deprivation leads to even more intense cravings for those things. You can't just cut yourself off cold turkey and expect it to work. If you do, eventually you're going to snap and be back where you started.

So, set aside a day once a month where you eat like a redneck hog. Big bucket of fried chicken, tater tots, hot wings, soda, Ho Hos, whatever. You won't be able to eat much of it, because your stomach will have shrunk, but it'll taste great, and you'll be able to avoid it the rest of the time, because you know you've got another splurge day coming up. The one day of splurging on garbage food won't hurt your health or affect your weight much (if at all). It'll keep you sane and on track (which a diet of raw vegetables won't do...are you aware that even Homo erectus had fire? There is nothing in human evolution that supports large amounts of raw food as being natural for our species--we have been cooking throughout our evolution).

As for me personally--I find large amounts of vegetables to be difficult to digest, and I continue to feel hungry unless I have at least some meat in my diet each day. I don't feel at all well without it. Everyone's metabolism is a bit different, and no single diet is appropriate for every individual.