Same for me but with sugar. Quit for a week, felt no different, went back to my usual (not particularly high) consumption. It's a bummer too because I had read so much strong criticism of sugar on HN and about how much it affects us without us realizing it, I thought maybe I'll actually feel something better which would be exciting! Nope, just bored because I had to cut out most of the interesting (to me) food in my life.