I can’t really contest it if you say a cup of olive oil would keep you full.

I’m not saying that. I really don’t recommend drinking olive oil as food. Fat and protein should be consumed in a solid form

The butter trick is easy to test, next time your hungry just “think” about eating a bit of butter - does it sound like a good idea? If yes, your hungry. If no, your craving something like carbs or sugar.

My criticism was about your comment consisting of a bunch of disjoint statements under the guise of being supporting sentences.

I’ll work on improving my use of English.