Capacity and tolerance tends to go up hand in hand with weight, it seems :-) My appetite is reined in only by my budget! I could always eat more at every sitting, it seems.
I've noticed that if you do anything at a certain time long enough, your body expects you to do it every day at that time. Whether it be eating, sleeping, using the bathroom, etc.
Yeah, what happens is that your body wants more and you will feel accomplished just eating that but over time the third pizza will become slight as a fourth and fifth slice will be your new normal. And, wait until you feel the food high from eating that much more. 🐽🐽🐽🐽