I'm scheduled for 8/6, started the liquid Protein last Friday, so far so good. My team requires the use of Optifast 800 only for 2 weeks. Honestly I enjoy the vanilla and chocolate by don't like the strawberry so I'm going to swap that for more vanilla/chocolate. For me, I'm not having a problem with the diet, the shakes satisfy me BUT the damn commercials on the telly are hard to watch (pizza, etc.) it's a head game. I feel good but do seem a little short on energy. Stand fast, stay focused, we can do this !!