The best I've felt in my life has been on a vegan diet, and my goal is to find a way to be vegan without any of my previous deficiencies. The vegan diet brings a sense of positivity that I've never felt otherwise. A low meat diet is one step closer to vegetarianism and a vegetarian diet is one step closer to veganism.
I believe that the important thing for me is to be on the path towards veganism, as close as possible. I feel that veganism is a win-win - animals are treated more humanely as humans become healthier. Of course, concerning skeptics, science also backs up the positive effects of a vegan diet. Yet there is no better teacher than experience.