If you could de-sensitize your toungue...
I watched some crazy news doc about women who have a spikey kind of patch sewn to their tongue, so that when they try to eat solid food, it hurts. They were pretty miserable, of course, but as one who is starving will do, they lost weight.
This made me wonder... if someone had all of they taste-buds de-sensitized, would they become and remain thin?
I once lost a surprising amount of weight/inches by eating the same two varieties of bland, completely unseasoned stew for three weeks (after reading Guyenet on food-reward). I was not limited to portion-size or caloric intake, but if I was hungry, all I could eat was one of these bland (NO SEASONING) stews (consisting of meat, broth, little added fat, and dark green veg). I discovered, very quickly, that most of my "tummy rumbling" was in anticipation of a delicious taste and that the rumbling didn't happen as often when the bland stew was on the menu.
Not that this lifestyle is a re-enactment, but Paleo-man wasn't able to add curry, salt, pepper, hot-sauce, herbs and spices, and homemade mayo to every meal to make it ultra-palatable. In the absence of sugar in the Paleo/Primal diet, are the additions of salt, spice, and herbs, causing us to ingest more food than we need/would ingest without these additions?