I sort of agree with you to an extent. I was craving some of my chicken alfredo last night and all that was left were the leftovers for my boyfriend which is tossed with fettuccine noodles. Boy was I going insane for some. So I finally just took a few pieces of the chicken out and ate them. I was fine after that. I think I just wanted the sauce and the salt.

However, if I am craving bread or chocolate and there's nothing but candy in the house it will take an act of god to keep me from eating it all.