Saw this interesting/humorous quote in the recent GP interview:
"I get closer to who I am when I'm not eating. Food is distancing for me. You've got to be starving and really miserable, and then you play well."
Perhaps reading between the lines is in order here. Maybe he is using "eating" or "being well fed" as a metaphor for getting too fat, happy, and comfortable with one's playing. Being "hungry" with something to prove gives an "edge" to guitar playing.
same for me .... eating too close to a gig messes with my singing ... to even drink anything more than sipping water does the sameI like to eat about 4 hours before a gig. My food is digested, I don't feel too full but I have energy to work off of.
I think he's on to something.