Gummiberry Juice is an alchemical brew produced by the gummi gears from the fruit of gummiberry bushes. One of the most enduring secrets of gummi culture, it has been produced since time immemorial and serves purposes both ceremonial and practical — including, in its concentrated form, granting the bears their signature ability to bounce with extraordinary force.
The gummi bears themselves are believed to have taken their name from the berries.

Overview

Gummiberry juice is brewed from the multicolored fruit of gummiberry bushes native to the forests of Dunwyn, including Lorath Wood. While many aspects of ancient gummi knowledge were lost during the long decline of their civilization, the recipe for gummiberry juice was never forgotten — making it one of the few living connections between the modern gummies and their ancestors.
The juice has distinct effects depending on who drinks it, and those effects vary further depending on whether it is taken in its standard form or as a reduced concentrate. The exact recipe, including the proportions of different colored gummiberry varieties, is a closely guarded secret.
Effects
On Gummi Bears
As a regular part of the Gummi Bear diet, the juice maintains good health and high energy. When reduced to a concentrate and swallowed, it temporarily grants gummi bears the ability to bounce with the force and elasticity of a superball — an ability colloquially known as “bouncability.”
Using this ability, bears can cover great distances rapidly, clear high walls, and disorient opponents in combat. The effect is temporary, wearing off after a period of sustained activity.
On Humans
Humans who drink gummiberry Juice do not bounce. Instead, the juice grants them a brief but dramatic surge of superhuman strength lasting approximately half a minute. After a single use, the juice has no further positive effect on the same person for the next 24 hours, though consuming more within that window can still produce adverse side effects.
Cultural Role
Gummiberry Juice occupies a central place in gummi culture. Beyond its practical applications, it is still used for ceremonial purposes, preserving a ritual connection to the ancient gummi civilization that once brewed it. How this knowledge survived the long centuries of decline, when so much else was forgotten, speaks to how deeply embedded it is in gummi identity.