I lost 70lbs AFTER I started smoking. Now, obviously you have to change your habbits as well. Eating better, drinking water instead of pop, and being more active will make a huge difference.

Does it really help you lose weight? I have no clue.

All I know is I lost weight after I began using marijuana back in college.
But again, my habits changed too.

Personally I believe your mentality has more to do with it than anything.
If you BELIEVE it will help you lose weight, it probally will.
If you BELIEVE it will make you fat, it probally will.

The mind is more powerfull than most people can imagine.