Phase 2?

So I have read all of these articles about a weight loss suplement called phase 2, which is basically just a kidney bean extract that supposedly blocks carb absorption by 75% causing weight loss. I am always skeptical of these things but I really did quite a bit of research and it seems to be medically backed and it is approved by the FDA as a 'carb-blocker'. I went to buy a bottle and I'm going to give it a shot for a week and see what happens.

Has anyone ever used this stuff on here before? Anyone have any advice? Or want to try it too?