# Yamamoto Ginseng (Panax ginseng)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/yamamoto-ginseng
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Panax ginseng, Korean Red Ginseng, Asian Ginseng, Ren Shen, Korean Ginseng, Hongsam, True Ginseng

## Overview

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

## 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

## Mechanism of Action

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

## 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](/ingredients/condition/immune-support) properties. Ginsenoside bioavailability is generally low (~1–5% oral absorption) due to extensive gut microbial [metabolism](/ingredients/condition/weight-management); 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.

## Dosage & Preparation

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.

## Safety & Drug Interactions

Panax ginseng may interact with warfarin and other anticoagulant medications, potentially altering bleeding risk. Common side effects include [insomnia](/ingredients/condition/sleep), headache, and gastrointestinal upset, particularly with higher doses. The herb may affect [blood glucose](/ingredients/condition/weight-management) 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.

## 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.

## 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.

## Synergistic Combinations

Insufficient data - no synergistic ingredients documented in research

## Frequently Asked Questions

### What ginsenosides are in Yamamoto Ginseng extract?

Yamamoto Ginseng is standardized to contain ginsenosides Rg1 and Rb1 as the primary bioactive compounds. The specific extraction process optimizes these ginsenoside concentrations, though exact percentages are not publicly disclosed.

### How much Yamamoto Ginseng should I take daily?

No established clinical dosage exists for Yamamoto Ginseng specifically since human studies are lacking. Traditional Panax ginseng dosing ranges from 200-400mg daily, but this particular extract may have different potency requirements.

### Can Yamamoto Ginseng interact with blood pressure medications?

Panax ginseng may affect cardiovascular function and could potentially interact with blood pressure medications. The ginsenosides may influence vascular tone and cardiac output, requiring medical supervision when combined with antihypertensive drugs.

### Is Yamamoto Ginseng different from regular Panax ginseng?

Yamamoto Ginseng uses a proprietary extraction method to concentrate specific ginsenosides Rg1 and Rb1. While the source plant is standard Panax ginseng, the processing aims to create a more standardized bioactive profile compared to crude ginseng preparations.

### How long does it take for Yamamoto Ginseng to work?

Without clinical studies on Yamamoto Ginseng specifically, timing of effects is unclear. Traditional Panax ginseng research suggests acute effects within hours for some parameters, while adaptogenic benefits may require weeks of consistent use.

### What extraction methods are used in Yamamoto Ginseng supplements?

Yamamoto Ginseng supplements typically utilize standardized extraction processes designed to concentrate ginsenosides, particularly Rg1 and Rb1 compounds. These extraction methods aim to maximize the bioactive compound profile compared to whole root preparations. The specific extraction technique can influence the ratio and concentration of individual ginsenosides in the final product.

### Is Yamamoto Ginseng safe for long-term daily use?

While Panax ginseng has a long history of traditional use spanning centuries, the research dossier does not provide clinical evidence establishing the safety profile of long-term daily Yamamoto Ginseng supplementation. Ginseng is generally considered safe for short-term use in most populations, but extended use should be discussed with a healthcare provider. Individual tolerance may vary based on existing health conditions and concurrent medications.

### How does Yamamoto Ginseng compare to other Panax ginseng cultivars in terms of ginsenoside content?

Yamamoto Ginseng is a cultivar variant of Panax ginseng that may have distinct ginsenoside profiles depending on growing conditions and processing methods, though direct comparative clinical data between cultivars is limited. Different Panax ginseng cultivars can vary in their Rg1 and Rb1 ratios, which may influence their properties. The research dossier does not provide specific head-to-head comparisons establishing superiority of Yamamoto over other cultivars.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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