I was sucking down a full thermos of that size, at least, after drinking morning coffees 2-3 cups when I was at the State. I got down to 2 cups a day at one point, then Dahlia came along.
Food is so important. Here, we can get food delivered residentially, often times, if needed. As the owner, I can see that if people are dragging from lack of food, it would be cheaper for me to order a pizza than have everyone drag, potentially get hurt or break things as a result of hypoglycemia.
I used to 'bonk' really bad. When I eat more Zone Diet/ Paleo stye 40 percent calories from carbs, 30% each fat and protein, I do SOOOO much better. Low, simple carbs, low sugar. I eat the shit out of Balance bars 0.99 at Trader Joes. TOO many.