Slimfast...hmmm

Okay, so I am starting slim fast today. I get a shake for breakfast, a shake for lunch and am supposed to eat something worth around 200 calories with it such as yogurt and fruit. Then your supposed to eat a dinner of around 500 calories. The shakes have 190 calories in. What I don't understand is at the bottom of the package it says to never consume less than 1200 calories a day. That is less than 1200 calories a day. Anyway, I did okay the first day. I ate a shake for breakfast along with a hard boiled egg to add some protein so that way i'd feel full longer. For lunch I ate yogurt and a shake. For dinner, well...I had a piece of pizza. It's roughly 500 calories lol. I ate some apple slices later. All in all it actually wasn't that hard when i wasn't focusing on being hungry. More to come later.