There are 19 defined potion effects in Minecraft. Two are given by food items, one by a Cave Spider's attack, 8 work but aren't used yet, and 8 have no effect.
Potion effects are given two parameters on creation: Duration (in ticks) and strength.
| ID | Name | Effect | Strength | How it's acquired |
|---|---|---|---|---|
| 1 | potion.moveSpeed | Expands FOV and increases walking speed | Increases both effects, stronger levels turn the FOV upside down and reverse controls | |
| 2 | potion.moveSlowdown | Contracts FOV and decreases walking speed | Increases both effects, reversing controls if very strong | |
| 3 | potion.digSpeed | Arm swings faster, blocks break faster | Increases both effects, arm motion appears to stop if very strong | |
| 4 | potion.digSlowDown | Arm swings slower, blocks break slower | Increases both effects | |
| 5 | potion.damageBoost | No apparent effect | ||
| 6 | potion.heal | Instant health gain | Sets the amount gained | |
| 7 | potion.harm | Instant health loss | Sets the amount lost | None, but death reason is reported as "was killed by magic.". |
| 8 | potion.jump | No apparent effect | ||
| 9 | potion.confusion | Causes the view to wobble similarly to using a portal | No apparent effect | |
| 10 | potion.regeneration | Causes health to regenerate over time | Makes health regenerate faster | Eat a golden apple |
| 11 | potion.resistance | No apparent effect | ||
| 12 | potion.fireResistance | No apparent effect | ||
| 13 | potion.waterBreathing | Causes air meter to be constantly full while underwater | No apparent effect | |
| 14 | potion.invisibility | No apparent effect | ||
| 15 | potion.blindness | No apparent effect | ||
| 16 | potion.nightVision | No apparent effect | ||
| 17 | potion.hunger | Causes food meter to deplete faster | Increases the depletion rate | Chance on eating raw/rotten food. |
| 18 | potion.weakness | No apparent effect | ||
| 19 | potion.poison | Deals damage over time | Increases the damage rate | Given by a Cave Spider's attack. |