[oculusthrift]

Obviously the "quality" of fat source can make a difference just like for carbs, getting them from broccoli or brown rice can be more filling than getting them from fries per calorie. Avocado's and nuts are obviously more filling than animal fats. For the most part, I think your body "craves" fats and eating them solves that craving. But this isn't the same as being "filling". I've also heard that the beginning of going on a high fat (ketogenic) diet is difficult, but your body adapts and fat tends to start filling you.

finally, peoples bodies vary and some are full with fewer fats or carbs than others.