Herb module
Da Zao
Jujube (Chinese Date)Ziziphus jujuba
A sweet red date that traditionally nourishes digestion, Qi, and Blood while settling a restless Spirit.
Da Zao is the jujube, or Chinese date. It is a warm, nourishing fruit that Traditional Chinese Medicine uses to strengthen the Spleen and Stomach and to build Qi and Blood. It also calms the Spirit and helps the other herbs in a formula work together, which is why it appears in Zoi formulas for sleep, mood, resilience, and hydration.
Best functions
- Traditionally used to tonify the Spleen and Stomach
- Augments Qi
- Nourishes Blood
- Calms the Spirit (Shen)
- Harmonizes a formula so the herbs work together
Fascinating facts
- Zoi uses jujube to harmonize a formula, bringing the other herbs into balance with one another.
- The name Da Zao means "great date." This gentle harmonizer turns up in a great many classic formulas, and there is a good reason it is so widely loved.
- The jujube's seed is a separate herb, Suan Zao Ren, which is used to nourish Heart Yin and calm the spirit.
- In China, dried red dates are an everyday food, simmered into soups, teas, and sweet dishes.
In Traditional Chinese Medicine
Da Zao is warm in nature and sweet in flavor, and it enters the Spleen and Stomach channels. Traditional Chinese Medicine counts it among the tonic herbs.
Biomedical deep dive
Da Zao Jujube (Chinese Date)
From the Zoi Medicinals fact sheets’ Biomedical Details, with lines from Noa’s herb notes marked “Noa’s notes”.
On the fact sheet
- Da Zao (Jujube, Chinese Date, Ziziphus jujube) is warm and enters the SP and ST channel; tonifies the Spleen and Stomach, augments Qi, and nourishes Blood and calms the Spirit. Hydration | Neró · Sleep | Kÿma · Brain + Mood | · Xýlo · Resilience | Fós sheets
Key active constituents
The fact sheets don’t name constituents for this herb.
Pharmacology and mechanisms
- Chinese date has cognitive-enhancing (nootropic) properties, according to the Xýlo fact sheet.
- Saponins (soap-like plant compounds) modulate the GABA-A receptor, the brain's main calming receptor; sedative and anxiety-easing. Noa’s notes
- Immunomodulatory: its polysaccharides (complex sugars) enhance macrophage phagocytosis, the way immune cells engulf germs and debris. Noa’s notes
- Hepatoprotective: reduces liver-enzyme elevation after toxic injury. Noa’s notes
What the research says
- The Xýlo sheet links Chinese date to cognitive enhancement, citing a review of dietary jujube fruit as a health food for brain protection (Chen et al., Evid Based Complement Alternat Med 2017).
Safety, interactions and cautions
- Every Zoi fact sheet: do not use if pregnant or breastfeeding unless directed by your health care practitioner.
- The Brain + Mood | Xýlo fact sheet cautions anyone with a medical condition or taking medication to consult their doctor before use.
- The Resilience | Fós fact sheet cautions anyone with a medical condition or taking medication to consult their doctor before use.
- The Resilience | Fós fact sheet notes that if the formula interferes with sleep, the last dose should be taken earlier, at least 3 hours before bed.
- Avoid in Damp-Phlegm or Damp-Heat conditions, or significant abdominal distension from Damp (Traditional Chinese Medicine terms). Noa’s notes
- Avoid with dental caries (cavities) or parasites; high sugar content. Noa’s notes
In these Zoi formulas
- Hydration | Neró (#6 on the fact sheet)
- Sleep | Kÿma (#4 on the fact sheet)
- Brain + Mood | Xýlo (#13 on the fact sheet)
- Resilience | Fós (#10 on the fact sheet)
