"Do try to avoid the nervous system of your own species, it can have consequences down the line." ..That's an odd way to say 'don't be a cannibal'. Which likely means he's not actually saying that.

Dio would be definitely calling the kettle black if he tried. "..Ammonia, truly? The few lions I have encountered had no remarkable smell." Maybe those were unclean lions! Maybe his world's lions smelled better, and thus likely tasted better.

He was going to have to find out. "I have heard, though not sampled it myself, that the large birds.. ah. Ostriches? Are truly fine dining. My companion felt it was worth traveling entire countries to taste it.'