From Brotato Wiki
Torture is an in-game item that can be bought from Shop or can be found in a Crate. Most Items increase the Stats of the player while some of them provide unique effects.
Torture is a unique item. Unique items can only be bought or found once per run.
When player has torture, they cannot heal in any other way. All other Healing methods such as HP Regeneration, Life Steal, and Consumables cease to function. Torture can be a really powerful item if you have not yet invested heavily in other forms of healing.