I was veggie for ten years and then started eating some chicken and fish again. I have to be honest, I wish I didn't, but I feel SO much better/more energetic eating a little meat. I prefer it to eating dairy, actually. I was very very careful about eating lots of beans and whole grains and leafy greens for my protein, and taking supplements, etc, so I don't know why. Melfreya, if you feel off/tired at all, or even before you do, I suggest you get your blood checked for your vitamins and minerals. I wouldn't go back to being veggie for now, because I travel too much to odd places for work and too often it's eat meat or starve.