Yep. That's why this works. If you limit the palatability (by restricting added salt/fat/seasoning), you get to a point where you simply do not want to eat any

Yep. That's why this works. If you limit the palatability (by restricting added salt/fat/seasoning), you get to a point where you simply do not want to eat any more potatoes. And that happens a lot sooner with potatoes vs. other foods due to the high satiety, so you're full and satisfied at a significant caloric deficit.