Hermetica Superfood Encyclopedia
The Short Answer
Japanese Raisin Tree seed contains dihydromyricetin (DHM), which modulates GABA receptors and upregulates alcohol dehydrogenase enzymes to support liver detoxification and alcohol metabolism. The seed's bioactive compounds kaempferol, stigmasterol, and naringenin work through NF-κB pathway inhibition to reduce hepatic inflammation and oxidative stress.
CategorySeed
GroupSeed
Evidence LevelModerate
Primary Keywordjapanese raisin tree seed benefits
Synergy Pairings4
Japanese Raisin Tree Seed — botanical close-up
Health Benefits
**Supports liver detoxification**
by enhancing liver enzyme activity and promoting bile flow, which aids toxin breakdown.
**Enhances metabolic function**
by regulating glucose metabolism and improving insulin sensitivity.
**Provides neuroprotective effects**
by reducing neuroinflammation and improving neurotransmitter balance.
**Strengthens immune resilience**
through antimicrobial and immunomodulating properties.
**Offers potent antioxidant**
protection, neutralizing oxidative stress and supporting cellular repair.
**Promotes digestive wellness**
by soothing gastrointestinal inflammation and supporting gut microbiota.
Origin & History
Natural habitat
Hovenia dulcis, commonly known as Japanese Raisin Tree, is a deciduous tree native to East Asia, particularly Japan, Korea, and China. It thrives in temperate and subtropical forests, valued for its fruit and seeds. Traditionally revered in Traditional Chinese Medicine (TCM) and Japanese Kampo medicine, its seeds are prized for their potent liver-detoxifying, neuroprotective, and metabolic-enhancing properties, making them a significant botanical in functional nutrition.
“Revered for centuries in Traditional Chinese Medicine (TCM) and Japanese Kampo medicine, Japanese Raisin Tree Seeds were historically used to support liver health, aid in alcohol detoxification, and enhance cognitive clarity. Traditional Korean healers also incorporated its extracts into remedies for digestive and anti-inflammatory conditions, highlighting its broad application in East Asian wellness traditions.”Traditional Medicine
Scientific Research
Scientific research supports the hepatoprotective, neuroprotective, and metabolic benefits of Japanese Raisin Tree Seed, particularly its active compound dihydromyricetin (DHM). Studies, including in vitro and animal models, investigate its role in liver detoxification, blood sugar regulation, and cognitive enhancement. Further human clinical trials are ongoing to fully elucidate its therapeutic potential.
Preparation & Dosage
Traditional preparation
Common Forms
Dried seeds, powdered extracts, liquid concentrates, capsules.
Traditional Use
Brewed into herbal teas or tonics; consumed fresh or dried.
Modern Applications
Incorporated into liver-support supplements, nootropic formulations, and metabolic wellness blends.
Dosage
500 mg of extract daily; 1–2 teaspoons (5–10g) of dried seeds, ground into tea or functional beverages
500–1,.
Nutritional Profile
- Phytochemicals/Bioactives: Dihydromyricetin (DHM), quercetin, rutin, chlorogenic acid, other flavonoids, polyphenols, terpenoids, saponins, tannins, phytosterols.
- Vitamins: Vitamin A, Vitamin C, Vitamin E.
- Minerals: Potassium, Magnesium, Calcium, Zinc.
- Fiber: Prebiotic fiber.
How It Works
Mechanism of Action
Dihydromyricetin modulates GABA receptors to reduce alcohol intoxication while upregulating alcohol dehydrogenase and ALDH enzymes in hepatocytes for enhanced alcohol metabolism. The primary bioactive compounds kaempferol, stigmasterol, and naringenin inhibit CYP2E1-mediated oxidative stress and downregulate NF-κB pathways to reduce inflammatory responses. Quercetin derivatives provide additional hepatoprotection through free-radical scavenging and cell membrane stabilization under oxidative conditions.
Clinical Evidence
Animal studies demonstrate hepatoprotective effects with decreased plasma glucose, lipid peroxide, total cholesterol and triglycerides while increasing glutathione levels. In vitro studies on murine macrophages show significant inhibition of nitric oxide production, COX-2 expression, and TNF-α release. One fermented beverage analysis identified dihydromyricetin at 75.17 mg/L concentration using HPLC-DAD and UPLC-MS/MS methods. However, human clinical trial data with specific patient numbers, dosages, and quantified outcomes from randomized controlled trials is currently lacking in the literature.
Safety & Interactions
Current literature lacks comprehensive safety data for Japanese Raisin Tree seed, including documented adverse effects, contraindications, and drug interactions. As with all botanical supplements affecting liver enzyme activity and alcohol metabolism, potential interactions with hepatically metabolized medications should be considered. The absence of pregnancy and lactation safety data necessitates avoidance during these periods. Patients with liver disease or those taking medications metabolized by alcohol dehydrogenase pathways should consult healthcare providers before use.
Synergy Stack
Hermetica Formulation Heuristic
Polyphenol/antioxidant base
Detox & Liver | Cognition & Focus
Also Known As
Hovenia dulcisAsian Raisin TreeRaisin TreeDHM source
Frequently Asked Questions
What is the main active compound in Japanese Raisin Tree seed?
Dihydromyricetin (DHM) is the primary bioactive compound, along with kaempferol, stigmasterol, and naringenin. These compounds work synergistically to modulate GABA receptors and enhance liver enzyme activity for alcohol metabolism support.
How does Japanese Raisin Tree seed help with alcohol metabolism?
DHM upregulates alcohol dehydrogenase and ALDH enzymes in hepatocytes while modulating GABA receptors to reduce intoxication signs. The seed also inhibits CYP2E1-mediated oxidative stress and reduces inflammatory responses through NF-κB pathway downregulation.
What antioxidant activity does Japanese Raisin Tree seed have?
Studies demonstrate strong antioxidant activity measuring 245.11 ± 10.17 μmol Fe²⁺/g by ferric-reducing antioxidant power and 284.35 ± 23.57 μmol TE/g by trolox equivalent antioxidant capacity. Quercetin derivatives contribute to free-radical scavenging and cell membrane stabilization.
Are there human clinical trials on Japanese Raisin Tree seed?
Current research primarily consists of animal studies and in vitro analyses showing hepatoprotective effects. Human clinical trials with specific patient numbers, dosages, and quantified outcomes are lacking in the available literature.
What liver benefits does Japanese Raisin Tree seed provide?
Animal studies show decreased plasma glucose, lipid peroxide, total cholesterol and triglycerides while increasing glutathione levels. The seed protects hepatocytes through multiple pathways including oxidative stress modulation and inflammatory response reduction via NF-κB pathway inhibition.
Does Japanese Raisin Tree seed interact with alcohol or medications that affect liver function?
Japanese Raisin Tree seed may enhance liver enzyme activity, which could potentially affect the metabolism of medications processed by the liver (such as statins, anticoagulants, or acetaminophen). While the seed is traditionally used to support alcohol metabolism, concurrent use with high alcohol consumption should be discussed with a healthcare provider. If you take prescription medications, consult your doctor before adding this supplement to avoid unwanted interactions or altered drug efficacy.
What is the optimal dosage and timing for Japanese Raisin Tree seed supplementation?
Typical supplemental doses range from 300–600 mg daily, often divided into 2–3 doses, though specific recommendations vary by extract concentration and product formulation. Taking Japanese Raisin Tree seed with meals may enhance absorption and reduce potential digestive upset, particularly if you are taking it for liver or metabolic support. Always follow the manufacturer's dosage instructions or consult a healthcare practitioner to determine the right dose for your individual needs.
Who should avoid Japanese Raisin Tree seed, and is it safe for pregnant women or children?
Japanese Raisin Tree seed is not recommended during pregnancy or breastfeeding due to insufficient safety data in these populations. Children should only use this supplement under medical supervision, as research on pediatric safety is limited. Individuals with severe liver disease, those scheduled for surgery, or those taking immunosuppressant medications should consult a healthcare provider before use, as the seed's immune-stimulating and liver-enzyme-modulating properties may not be appropriate in these situations.
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