These before and after pictures speak for themselves. These people transformed their health using a mainly raw vegan diet. Besides the obvious physical improvements, notice how full of life they look on a raw food diet.
Note: Not all, but some people who eat a raw vegan diet eventually feel the need to add certain animal products to their diet for long term optimal health. I started off eating a raw vegan diet, but now also include some of the items described in the article: Nutritional Guidelines .