A vegan diet, done right, can be very healing, but I don't think it's right for everyone. There are people that do better with a little bit of animal products in their diet. Also, I don't know about other people's experiences, but fresh fruits and veggies are probably the bulk of my food expenses, and animal products can be gotten for pretty cheap. That being said, I think most people could use a little more plants in their diet.
RE: Why Vegan: Environmental and Social Impact