Devil Fruit

Devil Fruits are mystical and mysterious fruits found throughout the world that, when consumed, grant the eater a special super-human power, at the cost of the eater's ability to swim.

A Devil Fruit can grant the consumer one of an immense variety of powers that can be used in many ways, from mundane utilities to powerful attacks. The power that the eater acquires depends on the type of Fruit. Devil Fruits can be classified into three different categories: Paramecia, Logia, and Zoan.

With only one notable exception, an individual can only acquire the powers of a single Devil Fruit and survive.

They are extremely valuable on the market, and many of the world's most powerful combatants, especially those among the Three Great Powers, have consumed them.

According to Oda, a "certain professor" will explain the complex mechanisms behind all of the Devil Fruits in the series at some point in the future.