Nigga respect the game, that should be it
What you eat don't make me shit - where's the love?

from Jay Z – Heart Of The City (Ain't No Love) Lyrics on Rap Genius

Meaning

It’s every man for himself. The money you make doesn’t do anything for Jay, just like the food you eat doesn’t make him drop a deuce

You are what you eat.

Food is a slang term for money so the food/money you ingest/get does not affect Jay’s bowel movements/income flow

To help improve the meaning of these lyrics, visit “Heart Of The City (Ain't No Love)” by Jay Z Lyrics and leave a comment on the lyrics box