[It is a particular talent of Loki's to tug on Thor's heart strings. It works even better when he's small and sad, it makes Thor feel momentarily horrible despite not being remotely responsible for this.]

This shall pass, I am sure. I could not tell you how, but we will get to the bottom of it. [Thor reaches a fork out to push the food on Loki's plate.] You will not be as smart if you are not well fed.