Optifast 900
for those of you who don't know what Optifast 900 is, it's a 6 - 12week program. You are followed closely by doctors and go to class/group once a week for 3hours. On these shakes you're only consuming 900caloriea a day and going into a mild state of keytosis. While on these shakes you can only consume an extra 20calories a…