Açai

It costs 1 gp and you can buy it from Guarani, that is south of banana plantation on karamja.

It heals 50 hp

Trivia:

It is a very common fruit in Brazil that can make a drink called açai made of açai and guaraná.

The native that sells açai called Guarani has the same name as a South American etny.

It seems like someone gave it to the jmods and they liked it!