I will tell you, it's not that hard to train your body to treat hunger differently. You just need to fast now and then, most religions have guidelines for this. It doesn't take much to give you hunger resistance, and it makes a huge difference... You become less affected by low blood sugar and able to ignore hunger when you need to

After your body adjusts, hunger becomes cyclical - you feel hungry, maybe even nauseous, but then it goes away after a couple minutes. If you're doing something, it's so easy to ignore you forget about it