# Sanjiang Brown Mushroom (Pholiota adiposa)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/sanjiang-brown-mushroom
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-01
**Evidence Score:** 2 / 10
**Category:** Mushroom/Fungi
**Also Known As:** Pholiota adiposa, Northeast Asian Brown Mushroom, Chinese Brown Mushroom, Heilongjiang Mushroom, Asian Scaly Cap, Fat Pholiota

## Overview

Pholiota adiposa, commonly called Sanjiang Brown Mushroom, contains bioactive polysaccharides and compounds that trigger apoptosis in cancer cells while modulating [cytokine](/ingredients/condition/inflammation) production. Its primary mechanisms involve activating immune effector pathways and reshaping gut microbiota composition in preclinical models.

## Health Benefits

• May inhibit tumor growth through apoptosis induction and angiogenesis suppression (preliminary animal evidence)
• Supports [immune function](/ingredients/condition/immune-support) by elevating IL-2, IL-6, and IFN-γ levels (shown in mouse models)
• Modulates gut microbiota by increasing beneficial bacteria like Alloprevotella (preclinical data)
• Protects organ function including spleen, thymus, liver, and kidney (demonstrated in mice vs. chemotherapy-induced damage)
• Contains essential nutrients including proteins (20-25% dry weight), B vitamins, minerals, and beta-glucans (compositional analysis)

## Mechanism of Action

Pholiota adiposa polysaccharides promote tumor cell death by inducing intrinsic apoptosis pathways and suppressing angiogenesis, likely by downregulating VEGF signaling critical for new blood vessel formation in tumors. On the immune side, these polysaccharides stimulate macrophage and T-cell activity, elevating pro-inflammatory and [immunomodulatory](/ingredients/condition/immune-support) cytokines including IL-2, IL-6, and IFN-γ, which coordinate adaptive immune responses. Additionally, fermentable polysaccharides act as prebiotics in the colon, selectively enriching short-chain fatty acid-producing genera such as Alloprevotella, which in turn influence [intestinal barrier integrity](/ingredients/condition/gut-health) and systemic [inflammation](/ingredients/condition/inflammation) via butyrate signaling.

## Clinical Summary

Current evidence for Pholiota adiposa is limited exclusively to in vitro cell studies and rodent models, with no published human clinical trials as of 2024. Mouse model studies have demonstrated measurable increases in IL-2, IL-6, and IFN-γ serum levels following oral polysaccharide administration, suggesting immunostimulatory activity. Preclinical tumor models showed inhibited tumor growth associated with apoptosis induction and reduced angiogenic marker expression, though effect sizes and dosing protocols vary across studies. Gut microbiota research in rodents identified significant enrichment of Alloprevotella after supplementation, but translation to human [microbiome](/ingredients/condition/gut-health) outcomes remains unestablished.

## Nutritional Profile

Sanjiang Brown Mushroom (Pholiota adiposa) is a high-protein, low-fat edible fungus with notable bioactive compound diversity. **Macronutrients (per 100 g dry weight, approximate):** Protein: 18–25 g (rich in essential amino acids including leucine, lysine, and valine); Total fat: 1.5–3.5 g; Total carbohydrates: 50–60 g (including significant dietary fiber); Crude fiber/dietary fiber: 6–10 g (comprising both β-glucans and chitin); Ash: 5–8 g. **Caloric value:** ~280–320 kcal per 100 g dry weight. Fresh fruiting bodies are approximately 85–92% moisture, yielding roughly 25–40 kcal per 100 g fresh weight. **Key Bioactive Compounds:** • Polysaccharides (primarily β-glucans, particularly β-1,3/1,6-D-glucans): ~3–8% of dry weight; these are the principal [immunomodulatory](/ingredients/condition/immune-support) and antitumor-active fractions. Bioavailability is moderate orally; gut microbiota fermentation enhances activity. • Phenolic compounds: total phenolics approximately 5–15 mg GAE/g dry weight, including gallic acid, protocatechuic acid, and flavonoids, contributing to [antioxidant](/ingredients/condition/antioxidant) capacity (DPPH/ABTS radical scavenging). • Adipose-specific sesquiterpenes and diterpenoids: trace to low concentrations, some with cytotoxic activity (exact quantities vary by strain and substrate). • Ergosterol (provitamin D₂): ~50–100 mg/100 g dry weight; convertible to vitamin D₂ upon UV-B exposure. **Minerals (per 100 g dry weight, approximate):** Potassium: 2,000–3,500 mg; Phosphorus: 600–1,000 mg; Magnesium: 100–200 mg; Calcium: 20–60 mg; Iron: 10–30 mg; Zinc: 5–12 mg; Selenium: 2–15 µg (substrate-dependent; bioavailability is moderate as organoselenium forms). Copper: 1–5 mg; Manganese: 1–3 mg. **Vitamins:** Niacin (B₃): 30–60 mg/100 g dry weight; Riboflavin (B₂): 1–4 mg; Thiamine (B₁): 0.1–0.5 mg; Folate (B₉): 30–60 µg; Vitamin D₂: variable, 0–1,200 IU depending on UV exposure. **Other notable compounds:** • Lectins: present in trace amounts; may contribute to immunomodulatory effects. • Trehalose: 1–3% dry weight (a natural disaccharide with potential cytoprotective properties). • Chitin and chitosan derivatives in cell walls: partially contribute to dietary fiber but have low digestibility/bioavailability. • Fatty acid profile (of the lipid fraction): predominantly linoleic acid (C18:2, ~55–70% of total fatty acids), oleic acid (C18:1, ~15–25%), and palmitic acid (C16:0, ~10–15%). **Bioavailability notes:** β-glucan polysaccharides are not directly absorbed intact but exert immunomodulatory effects via gut-associated lymphoid tissue (GALT) and Peyer's patches; hot-water extraction significantly increases their bioaccessibility. Phenolic antioxidants show moderate oral bioavailability. Mineral bioavailability may be slightly reduced by phytate-like compounds and oxalates naturally present. Protein digestibility is generally good (~70–80% PDCAAS estimated) once cell walls are disrupted by cooking.

## Dosage & Preparation

No clinically studied dosages in humans are available. Preclinical mouse studies used unspecified low, medium, and high doses of hot water extract (EPA), with the high dose showing strongest tumor inhibition. Human dosing has not been established. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

No formal human safety trials have been conducted for Pholiota adiposa extracts or supplements, making comprehensive risk profiling impossible at this time. Given its immunostimulatory [cytokine](/ingredients/condition/inflammation)-elevating properties—specifically IL-2, IL-6, and IFN-γ—individuals taking immunosuppressant drugs such as cyclosporine or corticosteroids should exercise caution due to potential antagonistic interactions. Pregnant and breastfeeding individuals should avoid supplementation in the absence of safety data. Individuals with autoimmune conditions such as lupus, rheumatoid arthritis, or multiple sclerosis should consult a physician before use, as immune upregulation could theoretically exacerbate disease activity.

## Scientific Research

Research on Pholiota adiposa is limited to preclinical studies, with no human clinical trials, RCTs, or meta-analyses identified. The primary study (PMID: 35533264) used H22 hepatoma tumor-bearing mouse models, demonstrating antitumor effects comparable to cyclophosphamide through mechanisms including apoptosis induction and VEGF reduction.

## Historical & Cultural Context

Pholiota adiposa is a famous edible mushroom in Northeast Asia with a history of use for its medicinal fruiting body. Cultivation for nutritional and medicinal properties is now prevalent worldwide, driven by reported antitumor, [antimicrobial](/ingredients/condition/immune-support), anti-HIV-1, and antioxidative activities.

## Synergistic Combinations

Reishi mushroom, Turkey tail, Shiitake, Vitamin D, [Probiotic](/ingredients/condition/gut-health)s

## Frequently Asked Questions

### What are the main bioactive compounds in Pholiota adiposa?

The primary bioactive compounds in Pholiota adiposa are water-soluble and alkaline-soluble polysaccharides, which are responsible for its immunomodulatory and antitumor effects observed in preclinical studies. These polysaccharides are beta-glucan-rich structures that interact with pattern recognition receptors on immune cells, triggering cytokine cascades involving IL-2, IL-6, and IFN-γ. Phenolic compounds and ergosterol derivatives may also contribute to its antioxidant and anti-inflammatory properties, though these are less studied.

### Can Pholiota adiposa mushroom fight cancer?

Preclinical animal and cell studies suggest Pholiota adiposa polysaccharides can inhibit tumor growth by inducing apoptosis in cancer cells and suppressing angiogenesis, possibly through downregulation of VEGF-dependent pathways. However, no human clinical trials have been conducted, so it cannot be classified as a cancer treatment or adjunct therapy. These findings are preliminary and should not be interpreted as evidence that the mushroom treats, cures, or prevents cancer in humans.

### How does Pholiota adiposa affect gut bacteria?

In rodent studies, oral administration of Pholiota adiposa polysaccharides significantly increased the abundance of Alloprevotella, a genus of beneficial gut bacteria associated with short-chain fatty acid production and anti-inflammatory effects. This prebiotic-like activity suggests the polysaccharides resist digestion in the small intestine and reach the colon, where they selectively feed beneficial microbes. Human gut microbiome data are not yet available, so the magnitude and relevance of this effect in people remains unknown.

### What is the recommended dosage of Pholiota adiposa supplement?

There is currently no established human dosage for Pholiota adiposa, as clinical trials in humans have not been performed. Rodent studies have used polysaccharide doses roughly in the range of 50–400 mg per kilogram of body weight, but these figures cannot be directly extrapolated to human dosing without pharmacokinetic bridging studies. Anyone considering supplementation should consult a healthcare provider, as commercially available products lack standardized polysaccharide concentrations.

### Is Pholiota adiposa the same as nameko mushroom?

No, Pholiota adiposa (Sanjiang Brown Mushroom) is distinct from Pholiota nameko, which is the common nameko mushroom widely used in Japanese cuisine. Both belong to the genus Pholiota and share some structural polysaccharide similarities, but they are separate species with different morphologies, flavor profiles, and research backgrounds. Most of the health-focused research on Pholiota adiposa comes from Chinese scientific literature and focuses specifically on its polysaccharide fractions rather than culinary applications.

### Does Pholiota adiposa interact with immune-suppressing medications?

Pholiota adiposa may potentially interact with immunosuppressant drugs, as the mushroom actively elevates immune markers like IL-2, IL-6, and IFN-γ, which could counteract medications prescribed to suppress immune function. If you are taking immunosuppressive medications (such as those for autoimmune conditions or post-transplant), consult your healthcare provider before supplementing with Pholiota adiposa. There is limited clinical data on this interaction, so professional guidance is essential.

### Is Pholiota adiposa safe for children and elderly populations?

Safety data for Pholiota adiposa in children and elderly populations is limited, as most research has been conducted in animal models rather than clinical trials in these groups. The elderly and children may have different metabolic rates and immune responses, requiring adjusted dosing considerations. Consult a healthcare provider before giving Pholiota adiposa supplements to children or using it in elderly patients with multiple comorbidities or medications.

### How does the strength of evidence for Pholiota adiposa's benefits compare to other medicinal mushrooms?

Most evidence supporting Pholiota adiposa comes from preclinical animal studies (mouse models), which is preliminary compared to some other medicinal mushrooms with more human clinical trials, such as reishi or shiitake. While the research shows promise for immune modulation and organ protection, large-scale randomized controlled trials in humans are lacking. This means claims about its efficacy are more theoretical than proven in clinical practice, warranting caution when comparing it to better-studied mushroom species.

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