Definitely not Kizaru ,
how would Kizaru know giving food to luffy recovers him.
That's probably the dumbest thing he can do.
Luffy did say he needs food , But to Kizaru it should be more like a pun or something like Zoro and Kaido demands alcohol.
Except for SH's and Caribou , I don't think so there's anyone aware of luffy recovering with food.
It's either Robin or Caribou , He was the wild card in Wano as well.
Fed luffy after his Second or third L from Kaido , He knows nobody getting out alive if luffy goes out.