User blog comment:Xilinoc/Ch. 565 (Mangapanda is run by lazy barnacles)/@comment-5847836-20140125014044/@comment-5398287-20140125042824

Where, exactly, did you get cyanide from?

Anyhow, all parts of a Hollow are poison to Quincies likely because of their opposing natures: Hollows are dead people who devour other dead people, and Quincies are living people that kill dead people. Something to that effect.