When I was vegan, I didn't feel very healthy. I regularly exercised, but I had to do it a lot more to maintain my weight. Now that I'm eating primal, I don't have to constantly do cardio to stay at my optimum weight. And I'm not all insane about eating low/no fat like I was. I wish I hadn't wasted three years of my life being vegan, even if my intentions were good (animal rights). I'm better educated about buying sustainable products now.