Minecraft wiki entry for Difficulty, associated text: No hostile mobs can spawn naturally, except for shulkers, hoglins, zoglins, piglin brutes‌[Bedrock Edition only], and the ender dragon. No mobs can deal damage to the player in peaceful. No spiders, cave spiders, zombified piglins or endermen – neutral rather than hostile mobs – can spawn naturally. When any of these mobs attempt to spawn (whether naturally, through mob spawners, spawn eggs, or commands), they are removed from the game instantaneously. When the difficulty is switched from any other setting to Peaceful, all mobs that are not allowed to spawn on Peaceful are removed from the world. Players regain health rapidly over time. Despite this, it is still possible to die if damage is received quickly enough. TNT deals no direct damage to the player, but it does give knockback still, meaning a player can be killed by it if it launches them too far upward. The hunger bar never depletes; in Java Edition, players therefore cannot eat anything except golden apples, chorus fruits, and milk buckets, unless the player switched to Peaceful when their hunger bar was below the maximum. Players can eat normally in Bedrock Edition. Additionally, if the hunger bar is below the maximum, it regenerates quickly.