6K Man
Bureaucrat
I don't see where Sid's provides food in the Civfanatics Civilopedia
Wow. That's a pretty big error in that link. It shows Sid's Sushi as providing +2 per resource consumed, which is nice, but the real bonus is the + 0.5 per resource consumed.
And as noted, on many if not most maps, you'll get a lot more of the Sushi resources than you will Cereal resources.