Yamamoto Ginseng (Panax ginseng)

Yamamoto Ginseng (Panax ginseng) is a standardized extract containing ginsenosides Rg1 and Rb1 as primary bioactive compounds. The extract modulates the hypothalamic-pituitary-adrenal axis and may influence cellular energy metabolism through mitochondrial pathways.

Origin & History

Yamamoto Ginseng is a specific cultivar variant of Panax ginseng (Asian/Korean ginseng) primarily cultivated in Korea's Geumsan and Punggi regions, with roots harvested at 4-6 years for optimal saponin content. Production involves high hydrostatic pressure (HHP) extraction at 100 MPa with enzymes for 24 hours to enrich ginsenosides, or traditional steaming at ~185°F for red ginseng followed by ethanol extraction.

Historical & Cultural Context

Panax ginseng has historical use in Traditional Korean and Chinese Medicine for vitality, with Korean Red Ginseng preparation involving steaming and sugar soaking of roots for preservation and mold resistance. Cultivation traditionally involves autumn-sown seeds grown over 4-6 years, though no specific Yamamoto cultivar history is documented.

Health Benefits

• The research dossier does not provide specific clinical evidence for health benefits
• Traditional use suggests support for vitality (historical use only, no clinical trials cited)
• Extraction methods optimize ginsenoside content (Rg1, Rb1) but without demonstrated clinical outcomes
• No human studies or meta-analyses are referenced in the provided research
• Evidence quality: Insufficient - no clinical trials or PMIDs provided

How It Works

Ginsenosides Rg1 and Rb1 interact with glucocorticoid receptors and modulate the hypothalamic-pituitary-adrenal axis response to stress. These compounds may enhance mitochondrial ATP synthesis and influence neurotransmitter pathways including dopamine and norepinephrine. The standardized extraction process concentrates these ginsenosides but clinical mechanisms remain poorly characterized in human studies.

Scientific Research

The research dossier lacks specific human clinical trials, RCTs, or meta-analyses for Yamamoto Ginseng or Panax ginseng cultivars. No PubMed PMIDs are provided in the sources, with only extraction method studies focusing on optimizing ginsenoside yield rather than clinical outcomes.

Clinical Summary

Current research on Yamamoto Ginseng lacks robust human clinical trials demonstrating specific health outcomes. The extraction methodology focuses on optimizing ginsenoside content, but no published studies validate clinical efficacy of this particular preparation. Traditional use data suggests historical application for vitality support, though this evidence does not meet modern clinical standards. Further controlled human studies are needed to establish therapeutic benefits.

Nutritional Profile

Yamamoto Ginseng (Panax ginseng) root is primarily valued for its bioactive ginsenosides rather than macronutrient content. Key compounds: Ginsenosides Rg1 (typically 1.5–3.5 mg/g dried root), Rb1 (2.0–5.0 mg/g dried root), Rb2, Rc, Rd, Re, and Rf collectively comprising roughly 2–6% total ginsenoside content depending on extraction and processing methods. Contains polysaccharides (starch-based, ~50–60% of dry weight), crude protein (~10–14% dry weight), lipids (~1–2%), and dietary fiber (~10–15%). Micronutrients include potassium (~15–20 mg/g), calcium (~2–4 mg/g), magnesium (~1.5–3 mg/g), iron (~0.1–0.3 mg/g), zinc (~0.03–0.08 mg/g), and trace amounts of manganese, copper, and selenium. B-vitamins (B1, B2, B12) are present in small quantities (<1% RDI per typical serving of 1–3 g). Additional bioactive compounds include polyacetylenes (panaxynol, panaxydol at ~0.01–0.05% dry weight), phenolic compounds, and acidic polysaccharides (ginsenans) with potential immunomodulatory properties. Ginsenoside bioavailability is generally low (~1–5% oral absorption) due to extensive gut microbial metabolism; compound K is a major active metabolite formed via intestinal bacterial deglycosylation of protopanaxadiol-type ginsenosides (Rb1, Rb2, Rc, Rd). Steaming (red ginseng processing) converts native ginsenosides into less-polar derivatives (Rg3, Rk1, Rg5) which may have differing bioavailability. Typical daily serving size: 1–3 g dried root or 200–400 mg standardized extract (often standardized to ≥4% total ginsenosides). Caloric contribution per serving is negligible (~3–10 kcal). Note: Yamamoto-specific processing and sourcing may influence exact ginsenoside ratios and concentrations, but no proprietary compositional data was available in the research dossier.

Preparation & Dosage

No clinically studied dosage ranges are specified in the research for Yamamoto Ginseng extract, powder, or standardized forms. The sources only describe extraction optimization parameters (2-25% ginseng-to-water ratios) without human dosing data. Consult a healthcare provider before starting any new supplement.

Synergy & Pairings

Insufficient data - no synergistic ingredients documented in research

Safety & Interactions

Panax ginseng may interact with warfarin and other anticoagulant medications, potentially altering bleeding risk. Common side effects include insomnia, headache, and gastrointestinal upset, particularly with higher doses. The herb may affect blood glucose levels and should be used cautiously with diabetes medications. Pregnancy and breastfeeding safety data for Yamamoto Ginseng specifically is insufficient, warranting avoidance during these periods.