Poisonous Potato

A poisonous potato is a type of potato that can poison the player.

Obtaining
The poisonous potato is a rare drop when harvesting (destroying) potato crops; a fully grown plant has a 2% chance of dropping one in addition to the 2-5 regular potatoes.

Usage
Poisonous potatoes cannot be planted on farmland or baked. They also have no use with the composter.

Food
To eat a poisonous potato, press and hold while it is selected in the hotbar. Eating one restores hunger and 1.2 hunger saturation and has a 60% chance of applying 5 seconds of Poison II, draining  points of health. Interestingly, a poisonous potato actually restores double the hunger and saturation than a normal, unpoisoned potato. (A normal potato gives hunger and 0.6 saturation points.)

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