I recommend that you take a look at this video from Doug Lisle. He explains food density, and the amount of food that is needed to make you full, and he analyzes the western diet versus the plant strong diet and stomach volume. http://youtu.be/xAdqLB6bTuQ
I understand volume eating, and I took my volume vegetable eating to salad bar restaurants like Sweet Tomatoes, or a good Asian Buffet with several items, hibachi grill and salad bar. I have filled six plates this week for lunch at the asian buffet, in a massive vegetable gluttony attack.
I ate volumes of brown rice and vegetables this week and have lost 10 pounds in the past two weeks.