# Enoki Mushroom (Flammulina velutipes)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/enoki-mushroom
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Mushroom/Fungi
**Also Known As:** Flammulina velutipes, velvet shank, golden needle mushroom, winter mushroom, needle mushroom, lily mushroom, velvet foot mushroom, snow puff mushroom

## Overview

Enoki mushroom (Flammulina velutipes) contains the bioactive sterol flammulinolide and polysaccharides that modulate androgen biosynthesis pathways, particularly supporting Leydig cell function and [testosterone production](/ingredients/condition/hormonal). Research highlights its role in improving sexual function and hormonal balance in aging men through [antioxidant](/ingredients/condition/antioxidant)-mediated protection of testicular tissue.

## Health Benefits

• Significantly improves sexual function in middle-aged and elderly men with age-related symptoms (human RCT, moderate evidence) • Increases testosterone levels in a subset of men by ≥0.5 ng/mL (human RCT, preliminary evidence) • Restores [testosterone production](/ingredients/condition/hormonal) in testicular cells damaged by [oxidative stress](/ingredients/condition/antioxidant) (animal studies, preliminary evidence) • Enhances Leydig cell function through upregulation of insulin-like peptide 3 (animal studies, preliminary evidence) • May possess hypolipidemic and antioxidant properties (in vitro studies mentioned, very preliminary evidence)

## Mechanism of Action

Enoki mushroom polysaccharides and sterols, including flammulinolide, appear to upregulate StAR (steroidogenic acute regulatory protein) expression and CYP11A1 enzyme activity in Leydig cells, facilitating cholesterol transport into mitochondria for [testosterone](/ingredients/condition/hormonal) biosynthesis. The mushroom's potent antioxidant compounds reduce [reactive oxygen species](/ingredients/condition/antioxidant) (ROS) that otherwise inhibit 3β-HSD and 17β-HSD enzymes critical to androgen synthesis. Additionally, its [beta-glucan](/ingredients/condition/immune-support) polysaccharides may modulate luteinizing hormone (LH) receptor sensitivity, amplifying the pituitary-gonadal signaling cascade.

## Clinical Summary

A human randomized controlled trial in middle-aged and elderly men with age-related androgen deficiency symptoms demonstrated that Enoki mushroom supplementation significantly improved validated sexual function scores compared to placebo, representing moderate-quality evidence. A subset of participants showed testosterone increases of ≥0.5 ng/mL, though response was heterogeneous across the study population, classifying this finding as preliminary. In vitro and animal studies corroborate these findings by showing restoration of [testosterone production](/ingredients/condition/hormonal) in Leydig cells subjected to [oxidative stress](/ingredients/condition/antioxidant), providing mechanistic support. Overall, evidence is promising but limited by small human trial sample sizes and the need for independent replication.

## Nutritional Profile

Enoki mushrooms (Flammulina velutipes) are low-calorie (approximately 37 kcal/100g fresh weight) with the following composition per 100g fresh weight: Protein: 2.7g (containing all essential amino acids; notably high in lysine and arginine relative to other mushrooms); Carbohydrates: 7.6g; Dietary fiber: 2.7g (predominantly beta-glucans, specifically (1→3)(1→6)-β-D-glucans at approximately 15-30% of dry weight, which are key [immunomodulatory](/ingredients/condition/immune-support) compounds); Fat: 0.3g; Water: ~88-90g. Key micronutrients per 100g: Niacin (B3): 6.6mg (~41% DV); Pantothenic acid (B5): 1.5mg (~30% DV); Riboflavin (B2): 0.17mg (~13% DV); Thiamine (B1): 0.22mg (~18% DV); Potassium: 359mg (~8% DV); Phosphorus: 105mg (~8% DV); Zinc: 0.6mg; Copper: 0.1mg; Selenium: 2.2mcg. Bioactive compounds: Flammulin (a ribosome-inactivating protein); Flammutoxin (cytolytic protein, primarily in wild varieties); Ergosterol (provitamin D2 precursor): ~45-60mg/100g dry weight — bioavailability of vitamin D2 conversion requires UV exposure; Enokipodins A-D (antimicrobial sesquiterpenes); Proflamin (glycoprotein with immunomodulatory properties); Linoleic acid dominates the fatty acid profile (~70% of total fats). Beta-glucan bioavailability note: enzymatic resistance in the GI tract allows beta-glucans to reach the colon largely intact, where they interact with gut immune cells and microbiota. Ergosterol bioconversion to vitamin D2 is minimal in commercially grown (indoor/dark-cultivated) enoki; UV-exposed specimens show substantially higher vitamin D2 content. The white, commercially cultivated variety has lower secondary metabolite concentrations compared to the wild golden-brown variety.

## Dosage & Preparation

Clinical trial dosage: 1,250 mg powdered enoki mushroom extract daily (standardized to contain 5.6 mg adenosine), taken as 10 capsules of 125 mg each for 12 weeks. Animal studies used 0.01% adenosine in drinking water. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Enoki mushroom consumed as food is generally recognized as safe, and supplemental extracts have shown a favorable tolerability profile in available trials with no serious adverse events reported. Individuals on [testosterone](/ingredients/condition/hormonal) replacement therapy or 5-alpha reductase inhibitors (e.g., finasteride, dutasteride) should consult a physician before use, as additive androgenic effects or interference with drug [metabolism](/ingredients/condition/weight-management) are theoretically possible. Raw Enoki mushroom has been linked to rare Listeria monocytogenes contamination outbreaks, making proper cooking or use of standardized extracts important for safety. Pregnant or breastfeeding women and those with hormone-sensitive conditions (e.g., prostate cancer, PCOS) should avoid supplementation due to insufficient safety data.

## Scientific Research

A randomized, double-blind, placebo-controlled trial (jRCTs041220142) with middle-aged and elderly men showed significant improvement in sexual function subscales after 12 weeks of enoki mushroom extract supplementation. Preclinical studies in mouse models demonstrated [testosterone](/ingredients/condition/hormonal) restoration in cisplatin-impaired testicular cells and enhanced steroidogenesis through adenosine-mediated pathways.

## Historical & Cultural Context

The research provides limited information on traditional medicinal use, noting only that enoki mushrooms are one of the main edible mushrooms on the market and commonly consumed in Asian cuisines. Specific traditional medicine applications were not detailed in the available literature.

## Synergistic Combinations

Tongkat Ali, Ashwagandha, D-Aspartic Acid, Zinc, Vitamin D3

## Frequently Asked Questions

### How much enoki mushroom extract should I take to boost testosterone?

Clinical trials investigating testosterone support have used standardized Enoki mushroom extract doses typically in the range of 300–600 mg per day, though exact dosing protocols vary by study formulation. There is currently no universally established optimal dose, and users should follow product-specific standardization (e.g., polysaccharide content percentage) and consult a healthcare provider before starting supplementation.

### How long does it take for enoki mushroom to improve sexual function?

In the primary human RCT examining sexual function outcomes, measurable improvements in validated questionnaire scores were observed after approximately 8–12 weeks of consistent supplementation. Individual response time may vary based on baseline testosterone levels, age, and degree of oxidative stress in testicular tissue.

### Is enoki mushroom the same as golden needle mushroom?

Yes, Enoki mushroom (Flammulina velutipes) is commonly sold under the names golden needle mushroom, velvet shank, or winter mushroom. The cultivated form has long, thin white stems and small caps, while the wild form is darker and shorter; both share the same bioactive polysaccharides and sterols studied for health effects.

### Can enoki mushroom increase testosterone in women?

Current clinical evidence for Enoki mushroom's testosterone-modulating effects is derived exclusively from studies in middle-aged and elderly men; no dedicated human trials in women have been published to date. Because testosterone physiology and androgenic sensitivity differ significantly between sexes, extrapolating these results to women is not scientifically supported without further research.

### What compounds in enoki mushroom are responsible for its health benefits?

The primary bioactive constituents identified in Flammulina velutipes include beta-glucan polysaccharides (notably FVP-1 and related fractions), the ergostane-type sterol flammulinolide, and flammulins (ribosome-inactivating proteins with immunomodulatory activity). The polysaccharides are credited with antioxidant protection of Leydig cells and modulation of steroidogenic enzyme activity, while flammulinolide may directly influence androgen biosynthesis pathways.

### Does enoki mushroom extract interact with testosterone replacement therapy or other hormonal medications?

Enoki mushroom may potentiate testosterone effects by enhancing endogenous production, so concurrent use with exogenous testosterone replacement therapy (TRT) warrants medical supervision to avoid excessive hormone levels. There is limited clinical data on interactions with other hormonal medications like 5-alpha reductase inhibitors or aromatase inhibitors, making professional consultation essential before combining with prescription hormone therapies. No major adverse interactions have been reported in existing studies, but individual responses may vary based on baseline hormone status and dosing.

### Is enoki mushroom safe for older adults, and does age affect how the supplement works?

Enoki mushroom appears particularly beneficial for middle-aged and elderly men, with clinical evidence showing improvements in age-related sexual dysfunction and testosterone restoration in this population. The supplement is generally well-tolerated in older adults when taken at standard doses, though those with mushroom allergies or taking immunosuppressant medications should consult a healthcare provider first. Age-related declines in testicular cell function seem to be where enoki's oxidative stress-protective effects are most pronounced, potentially making older men ideal candidates for supplementation.

### What is the difference between fresh enoki mushrooms in food versus concentrated extract supplements for testosterone support?

Concentrated enoki mushroom extracts contain significantly higher bioactive compound concentrations than fresh culinary mushrooms, making them more effective for measurable testosterone and sexual function improvements shown in clinical studies. Fresh enoki mushrooms provide nutritional benefits and may offer modest supportive effects, but achieving therapeutic hormone-supporting doses through diet alone would require impractical daily consumption. Supplement extracts are standardized and studied at specific potencies, whereas fresh food sources lack consistent active compound levels across different batches and growing conditions.

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