Food poisoning is acquired by eating an old corpse. It is marked by the text FoodPois on the status line. The initial time-to-live is set to 10 + 1d9 turns. It is eventually fatal, but can be cured by doing one of the following: * applying a non-cursed unicorn horn, * praying to your god, * quaffing a non-cursed potion of extra healing or full healing, a blessed potion of healing, or a potion of holy water (unless chaotic), * casting a spell of cure sickness, * eating a eucalyptus leaf, * #invoking the Staff of Aesculapius.