Yeah, I'm a big guy and I actually lose weight when I go to Disney, regardless of what I eat and drink. We tend to go in the summer months, though, and I can't even imagine eating the volume Nate eats in a vid while walking around in that heat. That heat and humidity doesn't make me want to eat anything. Now drinks ? I can drink all day. By 11am, between the nonstop water drinking and the heat, you're sweating and peeing constantly in those parks.
I don't know how anyone can just go eat, eat, eat at a theme/amusement park like some do. I'm an annual pass member for Busch Gardens Tampa & SeaWorld Orlando, and they have the All Day Dining Plan, where you can eat a full meal every hour (one hour from the time your last meal was rung up). There are people in my passholder groups that literally go every hour to get something, if not that, maybe 3, 4, 5 or more meals during their day there. Like, who has the time for that, and how can people just eat like that?
I'm a "bigger" guy, 5'8, 236 pounds, and I love to eat, but I can't do it out in the heat like that. I just make sure I eat before I go to the parks, and maybe eat one meal while there if I stay more than 6 hours. Otherwise, I just wait until I leave to eat again. When it's hot like that, I don't even get hungry. I drink water, water, water all day long. I may get a soda with a meal, but normally water the rest of the time. Now, I'm not a beer drinker at all, I do drink various liquors, but could never drink like a fish while at the parks in that heat either. He's not exclusive to that, and I know of others who could drink him under the table, but I get sick just thinking about drinking and going to get on a ride, especially if it's hot outside.