RICHARD: Lorelai, you cannot order all of that food. You’re teaching your daughter wastefulness and gluttony.
LORELAI: Um Dad, we do this all the time. We order way too much and then we eat like a third of it and live off the leftovers for a week and a half. It’s a finely honed system.
More evidence that Lorelai and Rory don’t really eat that much. They order a huge amount of food, but then only eat 30% of it. The leftovers take them another ten days to get through, suggesting they’re only picking at them. That doesn’t sound like people with big appetites.
They’re also not worried about food poisoning – you’re meant to eat leftovers within two days (four at the absolute most), not ten! How they never get sick is a miracle. Unless constant vomiting and diarrhoea is their secret to staying slim.