Sustenance

In the backrooms, food and water don't work the same. Due to the unusual nature of time and space in the Backrooms, it is unlikely that you will often feel hungry. One may be able to survive for what is perceived as several months without hunger or thirst, although a good snack can take your mind off other things and help you stay sane.

Almond Water
Almond Water is the primary source of water in the Backrooms, and can be collected at various sources. Many have noted the distant taste of almond in the water. The most common method of collection is via water coolers, water fountains, vending machines, and (rarely) bottles of it found scattered throughout Level 4. Almond water can be found dripping from the ceiling on Level 5, and can also be found in some Negative Levels, though the safeness of this water is questionable.

Almond water is a healing substance. Dipping one's hand in the water can soothe and relieve the skin and silence voices inside the user's head, helping one to stay sane. Raw almond water is poisonous, and can cause convulsions and severe migraines. Boiling it makes it safe to drink, although thirst is rarely a problem in the Backrooms. Rubbing almond water on an open wound has been found to accelerate healing, but it may cause migraines. It is believed that the water's healing properties have earned it the nickname "Sacred Water" among the few sentient Entities that have acknowledged it's existence. It appears to have varying effects when applied to Backrooms-specific elements such as Entities or Objects, from beneficiary to harmful.