Indigenous people and language, found principally in Misiones, Corrientes and Paraguay.

Indigenous people who live in Paraguay and Brazil. In Spanish America, they were converted by Jesuits. Today, their language, Guaraní, is one of the official languages of Paraguay.

A berry that grows in Venezuela and the northern parts of Brazil. The primary active agent in guaraná is guaranine, which is nearly the same as caffeine. Effects are similar to caffeine and include stimulating the central nervous system and increasing the metabolic rate.