Im not saying dnp isn't very bad news if you don't know what you're doing but I didn't see mention of how much/how frequently he was taking it...
and NOWHERE in almost 100 yrs of literature on dnp has kidney cysts or necrosis anywhere been noted as potential side effects..without a doubt the absolute biggest problem with dnp is dehydration.
and as I recall this is a banned topic of conversation on EF
and let me reitterate, Dinitrophenol is dangerous shit if you don't know what you're doing with it and will KILL YOU DEAD if its not respected.