Jujube (Ziziphus jujuba)

Tier 3 — weak evidence · Sleep · Anxiety · Digestion

A traditional Chinese sedative fruit containing jujuboside A, which modulates GABA receptors. Commonly used in Chinese herbal sleep formulas for centuries. A few small modern trials show modest improvements in sleep quality and anxiety. Also traditionally used for digestive complaints. Very safe as it is eaten as a common fruit and snack across Asia. Clinical evidence is limited but growing.

Dose: 250–500 mg/day jujube seed extract standardised to jujubosides; or 10–30 g dried fruit