Filling here meaning over the medium term. You can stuff your stomach with vegetables and briefly feel "full", but you won't feel "satisfied" for very long, and might even feel a bit of nausea as your digestive system works on all these vegetables without much in the way of calories.
Exactly. I can eat enough vegetables to feel ill, and still not actually feel satiated. It's an uncomfortable feeling, still being hungry but also feeling full and a little nauseous even.
