The Small Rations was non-craftable consumable item. It had a high anti-radiation effect and was therefore useful in areas which contained high levels of Radiation.
The Small Rations could be consumed by a player by putting it into their Hotbar and pressing the specified key of 1-6. Players could could also consume it from anywhere in their inventory by hovering their mouse over the item and then clicking on it with their right-mouse button after which they could select the Eat option.
The Small Rations could be obtained in two different ways: