Talk:Ken Kaneki/@comment-108.253.237.104-20150913221850/@comment-25047329-20150913225059

It could be whatever they're feeding the ghouls in prison, which can be medical waste, ghoul meat, or a mix of both. People also donate their bodies and organs to science and charities after they die all the time, so perhaps the CCG has programs or connections to receive human meat for their prisoners.

Ghoul meat I think is also possible because from what I recall, all prisoners are kept on Rc suppressants to keep them from using their kagune (don't quote me on that, I don't remember well). Most prisoners don't seem to live very long anyway since it looks like they're only kept alive so long as their useful. As soon as they have no more information to give, they get offed.

That's my best bet, Sasaki either eats human flesh that's been donated or is medical waste, ghoul meat, or some kind of mix.