Food items are items that you consume to live in Project Zomboid. Not eating food can cause negative moodles, and eventually death, as well as certain physical affects. Eating more food than required will give you positive moodles and will give you stat boosts, so gathering food should be a priority. There are 3 types of food: perishable, nonperishable, and canned. Sometimes, you will need to cook the food to increase its effectiveness.
Perishable foods will go bad after several days, but this rotting period can be extended if the food is put in the refridgerator.
Nonperishable foods don't go bad and do not require a can opener, these types of food can be eaten on the go.
Canned food will require a can opener to consume, and some crafting is required before the eating. However, these types of food never go bad.