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
Yew berry aril contains minimal taxine alkaloids compared to other parts of the Taxus baccata plant, which block sodium and calcium channels causing cardiac arrhythmias. Analysis of 11,197 U.S. exposures showed 92.5% had no effects, with severe toxicity primarily occurring in intentional high-dose ingestions.
Reported Benefits (Provisional)
Origin & History
The Yew Berry (Taxus baccata) is the fleshy aril of the Yew tree, native to Europe, Asia, and North Africa. It thrives in temperate climates, found in forests, hedgerows, and gardens. While the aril offers antioxidant properties, extreme caution is required due to the toxicity of other plant parts.
Research Narrative (Provisional)
Research indicates the antioxidant and anti-inflammatory potential of the Yew Berry aril. Studies also highlight its traditional uses and the critical importance of avoiding toxic components found in other parts of the plant.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
- Dietary Fiber: Supports digestive balance. - Vitamin C: Enhances immune resilience and collagen support. - Flavonoids: Provide antioxidant and anti-inflammatory effects. - Carotenoids (Beta-carotene): Supports eye and skin health. - Essential Sugars: Provide small amounts of energy. - *Note: Contains toxic taxine alkaloids in seeds and other plant parts, which must be strictly avoided.*
Reported Mechanism (Provisional)
Taxine A and taxine B alkaloids, found minimally in the berry aril but concentrated in seeds, block sodium and calcium ion channels in cardiac tissue. This mechanism widens QRS intervals, slows atrioventricular conduction, and reduces heart rate at concentrations as low as 1 μM for taxine B. The resulting cardiac effects include bradyarrhythmias, tachyarrhythmias, hypotension, and potentially fatal cardiogenic shock.
Clinical Narrative (Provisional)
No randomized clinical trials exist for yew berry; evidence comes from poison control surveillance and case reports. Analysis of 11,197 U.S. exposures (96.4% children under 12) revealed 92.5% experienced no effects, 7.0% minor effects, 0.4% moderate effects, and 0.06% major effects with zero fatalities. A separate review of 48 cases from intentional ingestions showed 42% fatality rate, demonstrating the critical difference between accidental aril consumption and deliberate high-dose ingestions. Symptoms were predominantly gastrointestinal (65.5%), with cardiovascular and neurological effects comprising only 6% of cases.
Also Known As
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