In Root A, did Hide feed himself to Kaneki so that he would heal? Hide started bleeding shortly after Kaneki woke up, however, Kaneki had passed out from blood loss and was having difficulty healing. 
Then there's the weird dream Kaneki had that makes me believe that maybe he was, like, sleep-feeding or something. 

Did Hide maybe feed part of himself to Kaneki so that Kaneki would heal instead of dying?
Hide let kaneki eat him so kaneki could regain his strength and the 2nd season of the anime doesnt follow the manga.