senzu

Senzu is a magical seed featured in the Dragon Ball media franchise created by Akira Toriyama. In the series, senzu beans are small green seeds that, when eaten, fully restore the eater’s health and stamina and heal injuries almost instantly. The beans are presented as a crucial resource for recovery after battles, allowing fighters to return to training or combat without long convalescence. They are also depicted as removing fatigue and restoring ki, enabling the recipient to fight at peak condition again.

In-universe origin and use: Senzu beans are grown and prepared by Korin, the guardian of the sacred temple atop Kami's Lookout, and are provided to allies as needed. They are depicted as rare and valuable, with a steady supply for major battles but not something that can be mass-produced in large numbers.

Limitations: Senzu beans cannot resurrect the dead, and once a bean is eaten it is consumed and cannot be used again by the same person. The availability of senzu beans varies across adaptations, but the core idea remains that a single bean provides a complete, immediate recovery.

Legacy: Since their introduction, senzu beans have become a recognizable icon of Dragon Ball's approach to energy management in battles, often used to reset the fighting ability of characters between major confrontations.