For me, and this is just me: I've been able to gain control over what I eat and how much. That has translated into incredible control over my body and my life. If I were to eat grain or sugar I would not be able to stop where I want to. I am still losing weight so I don't want to screw around with success. Even when I stall out I know that I can walk away from bad foods and I don't feel hung over, swollen, achy, self loathing... and that keeps me going until the weight starts coming off again. So I am at 100%- I have to be. It's not worth it to me to go 80/20. My definition of 100% is probably different from some people- although I now eat only grass fed beef, I have no clue where my eggs come from. I eat yogurt every day. I will have a diet coke every two days or so. Those are my only departures! So is that 98%?