And don't get me started on artificial sweeteners! (That are in all my protein drinks from my hospital)! The dietician actually hung her head when I asked if there were artificial sweeteners in the stuff I had to buy from them for my liquid protein.
Have you read Pandora's Pantry? A real eye opener to the food industry. Things we thought were healthy for us are chemically changed...especially soy, it's really not for human consumption! And I always used Canola oil thinking it was a good fat. But it goes thru so much processing, you wouldn't want it in your home!
My doctor explained to me that ghrelin usually kicks back in after about a year...hopefully long enough to see a substantial weight loss and to have gained new eating habits.