I'm a grape man, myself. I just hate how crappy fast-food makes you feel afterwards. It's almost as if I can feel my performance suffering in any game I'm playing - wasting gold on less efficient items, missing that camper in the corner right in front of me, failing the same puzzle 5 times when the answer was just given by an NPC, etc.
Don't be lazy: make your own (healthy) food. And after you've finished your meal, get in some entertainment on your PS4. Just remember to take breaks... for things like exercise, face-to-face interaction, sleep, etc. You can have health and balance. Just do yourself a favor and leave fast food out of the mix - your body will thank you.