Anyway, I actually tried it today and managed to pack a fair bit into my body. I went a bit paleo at first without really thinking about it, I was just in the mood to munch on raw fresh veggies.
Over the course of about 10 hours, I managed (not in any order):
-6 large carrots
-Whole head of broccoli
-2 pt (1.1L) whole milk
-4 bananas
-2 bowls parsnip soup (total: 4 parsnips, 1 white onion, 2 cloves garlic, 650ml veg stock, 3 slices seeded bread)
-1 bowl borscht (beets, potato, carrot, onion, red cabbage, beef stock, lentils, sour cream - made it in bulk, so not sure of the amounts in each bowl)
Started with a banana for breakfast, then spent a couple hours watching TV and snacking on carrot sticks and raw broccoli. The bland flavours helped me to eat completely mindlessly. Then I went and made the parsnip soup, which was my lunch of sorts. Had the first bowl with some bread, some more rabbit food, and a banana. Refilled my bowl with the last of the soup, finished that with some more bread, finished off the raw veg and had another banana. Then I went to prep and make the borscht (which took quite a while (maybe just less than 2 hours), but it gave me a needed break). Ate that bowl and had the last banana, then all that was really left was more borscht (which I wasn't in the mood for). Then I've just been snacking a little on sweet stuff as a reward, but it's not particularly stuffing and my bloating is slowly going down now.
Before I started, my waist measured 39", and at my peak it reached 41 1/4". I'm quite a small guy, so my belly felt really round and taut by that point, and it felt like it bounced/swayed as I walked with it relaxed enough to just hang out. It was amazing