I recently had a period of a few weeks with a strangely insatiable appetite... I constantly had the munchies and could never get full. This just happens sometimes and usually runs its course. Well one night I cooked up a pound of pastured chicken livers and ended up eating the whole thing. My appetite turned off like a switch -- I was hardly hungry the next day and the munchies went away. I wonder if I was deficient in certain vitamins, which gave me the munchies, which were satisfied by the liver. This time of year I always crave the organ meats.
I eat my liver raw and I have noticed that I usually end up skipping 1 or 2 meals after eating it, never really thought about it much before. I only eat when my body tells me it needs food, so maybe eating nutrient dense foods can lead to natural IFing.
I imagine that the consumption of anything disgusting ought to put you off food for a while. When I eat an equal amount of liver in sausage form, the effect is much different, though I suppose there might be a slight increase in satiety, given the nutrient density. I think this would be most pronounced in an individual who is hungry as a result of trace mineral deficiencies, rather than standard macro hunger.