My sister took guggul in the beginning and she didn't feel that it helped her. I don't know personally because I didn't take any of the supplements besides the HNS's and EFA's.
I have a hard time buying into what "they" recommend.
Hope you find something that does help with your cravings..I hate that feeling.
BTW..Oddly enough my name is also Shanna.
I've never met someone who shares my name who spells it the same as I do..Too cool-