Sprunk is a brand of Soft Drinks in Grand Theft Auto V

It is a lemon-lime flavored soda, the GTA V equivalent to "Sprite"

Vending Machines selling Sprunk Cans are found throughout Los Santos

Slogan

It's the Essence of Life!

Lifeinvader

You can Stalk Sprunk on their Lifeinvader Profile to get a free Can of Sprunk from a Participating Vending Machine.

Link: http://www.lifeinvader.com/profile/sprunk

Trivia

The Ammunation Apocalypse Kit includes Sprunk bottles