Beetroot

Beetroots are crops exclusive to Pocket Edition. Beetroots are not planned to be in the PC edition of Minecraft.

Obtaining
Beetroots are obtained from harvesting a fully grown beetroot seed, which drops both itself and beetroots.

Food
Beetroots can be eaten to restore health.

Breeding mobs
Beetroots can be used to breed pigs by tapping and holding a pig with a beetroot in one's hand. Pigs follow the player if the player is holding a beetroot.

Trivia

 * In a future update there will be an easier way to obtain beetroot seeds (and beetroots).