Aloe vera - and a detox has helped me shift 7lbs in a couple of days. You can get aloe vera from health food shops, liqiud mix with a ton of water and it helps keep you full. I know that's a radical way to lose weight but it indicates the amount of gunk that I was carrying around in me.
I'm on a 9 day plan tho with some company, day 3 and I'm allowed to eat food as opposed to just fruit and veg. but I've been cheating a little.
All that said, medical supervision is important and I did chat to my doctor beforehand.