Maybe. If you're not a combat fighter. I don't think it's a problem for those guild members. Yami
I think you could be right. After all, people who do intense physical labor (combat, in this case) need a lot more calories than those who don’t. It makes sense that those peanuts would be very high in calories to help satisfy and energize combat hunters in the dungeon.
Maybe dungeon-made ingredients fill in your satiety level much longer. Which would be a HUGE help in dungeon exploring.