Guarana (Paullinia cupana) is a climbing vine native to the Amazon rainforest, specifically in Brazil. The seeds of the guarana plant are the source of the stimulant caffeine and are often used in energy drinks and supplements.
The misconception that guarana is animal waste likely stems from the fact that the seeds resemble small, black beads. However, these "beads" are actually the guarana fruit seeds.
It's important to remember that misinformation spreads easily, and it's crucial to verify information from reliable sources.