Supplies are present in The Last Stand 2 and The Last Stand: Union City.
The Last Stand 2[]
Supplies are used to move between the various towns, which is the main goal of the game. They can be found in any type of building.
The Last Stand: Union City[]
Supplies are now a catch-all term for food and medical supplies. They are quite common throughout Union City and can be found either inside containers or dropped by backpack zombies. They're especially vital if the player is in Survivor mode, though supplies can still be used to restore health in Run & Gun mode.
See Category: Food and Drink and Category:Medical for a full listing, along with their effects.