Nothing is . Water will be it . Not even a salad it contains as much calories as a burger since the salad dressings contain very high fat ,ranch containing the most .If you want to eat there I encourage for u to ask for a sheet they put in the tray behind the sheet it includes the number of calories ,fat etc the meals include . (former worker )
I think the water, it's not on the menu though. The ice from the ice machine is a different story. Studies have shown that the ice in the ice machines contain more fecal matter than the water in the toilet bowls :0 I'll pass thank you.