So far and based on the experience from some friends of mine travelling to/from Dubai during Ramadan, yes there is food and drinks in the airport.

On the other hand why don't you try contactung them and see if you get first hand details from the Airport Management Directly.

http://www.dubaiairport.com/DIA/English/TopMenu/Contact+Us/Contact+Infor...

or

http://www.dubaiairport.com/DIA/English/TopMenu/Contact+Us/Contact+Form/

Yet another option could be asking any of the travel agencies we have in Doha-Qatar about this topic.

Regards...good luck!!