Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
Zhi Shi (Citrus aurantium immature fruit) contains synephrine and hesperidin that enhance digestive function by stimulating gastric secretions and smooth muscle motility. This traditional Chinese medicine ingredient supports weight management through thermogenic effects and improves gastrointestinal health.
Reported Benefits (Provisional)
Origin & History
Zhi Shi is derived from the immature fruit of Citrus aurantium, commonly known as bitter orange. It is harvested before ripening and dried for medicinal use.
Research Narrative (Provisional)
Research indicates that Zhi Shi may aid in weight loss and improve digestive health. Some studies suggest it can increase metabolic rate, but more research is needed.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
Zhi Shi (immature Citrus aurantium fruit) is a bioactive-rich botanical rather than a significant macronutrient source. Macronutrient content is minimal in typical medicinal doses (3-10g dried peel/fruit). Key bioactive alkaloids include synephrine (primary active compound, approximately 0.02-0.3% by dry weight in immature fruit, higher than mature fruit), N-methyltyramine (~0.01-0.05% dry weight), octopamine (~0.01-0.02% dry weight), and tyramine (~0.01-0.03% dry weight). Flavonoids are prominent: naringenin and naringin (~2-8% dry weight combined), hesperidin (~1-5% dry weight), neohesperidin (~1-4% dry weight), nobiletin (~0.1-0.5% dry weight), and tangeretin (~0.05-0.3% dry weight). Essential oils constitute approximately 1-3% dry weight, dominated by limonene (60-90% of volatile fraction), with linalool, alpha-terpineol, and beta-myrcene as minor constituents. Fiber content in dried material is approximately 10-15% dry weight (mixed soluble/insoluble pectin-rich fiber). Vitamin C is present at approximately 30-50mg/100g fresh weight (significantly reduced in dried/processed material). Potassium (~180-220mg/100g fresh), calcium (~40-60mg/100g fresh), and magnesium (~15-25mg/100g fresh) are the primary minerals. Bioavailability note: Synephrine has moderate oral bioavailability (~30-40%); flavonoid glycosides require intestinal hydrolysis to aglycone forms for absorption, with naringenin bioavailability estimated at 20-35% of ingested dose. Fat-soluble polymethoxylated flavones (nobiletin, tangeretin) show enhanced absorption when consumed with lipids.
Reported Mechanism (Provisional)
Zhi Shi's primary bioactive compound synephrine acts as a beta-3 adrenergic receptor agonist, stimulating lipolysis and thermogenesis while increasing metabolic rate. Hesperidin and naringin flavonoids enhance gastric motility by modulating calcium channels in smooth muscle cells. The combination promotes gastric acid secretion through vagal nerve stimulation and histamine H2 receptor activation.
Clinical Narrative (Provisional)
Limited human studies show Zhi Shi extracts containing 6% synephrine increased metabolic rate by 4-5% in small trials of 20-30 participants over 8-12 weeks. Traditional use studies in TCM practice demonstrate improved digestive symptoms in 60-70% of patients with functional dyspepsia. Most clinical evidence comes from combination formulas rather than isolated Zhi Shi, making individual effects difficult to quantify. Larger randomized controlled trials are needed to establish definitive therapeutic benefits.
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