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Maitake Mushroom Extract — SacredBod supplement bottle (illustrative)
Supplement · immune

Maitake Mushroom Extract

Grifola frondosa · Hen of the Woods · D-Fraction · SX-Fraction

500-1,000 mg extract (or 3-7 g dried fruiting body) · vegan · gluten-free · 60 caps

low-immunityhigh-blood-sugarmetabolic-syndromefatiguechemotherapy-support immune-systempancreasliver
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Overview Stacks Timing Related Research FAQs Blog

What it is

Maitake (Grifola frondosa, "hen of the woods") is a polypore mushroom native to Japan and North America, valued in traditional Japanese and Chinese medicine for immune and metabolic support. The fruiting body contains beta-glucans (particularly the D-fraction, a protein-bound beta-1,6-glucan with beta-1,3 branches), ergosterol, and various polysaccharides. The D-fraction is the most studied constituent and is standardized in some extracts. Maitake is also a culinary mushroom with a rich, earthy flavor, but supplemental doses are far higher than dietary amounts.

How it works

Maitake beta-glucans activate innate immune cells (macrophages, dendritic cells, NK cells) via Dectin-1, TLR-2, and CR3 receptors, enhancing cytokine production and phagocytic activity. The D-fraction has been shown to stimulate IL-1, IL-2, and TNF-alpha production in vitro and in animal models. For metabolic effects, maitake may improve insulin sensitivity via AMPK activation and glucose transporter upregulation. Konno 2002 demonstrated that maitake SX-fraction (a related extract) reduced fasting glucose and improved insulin sensitivity in type 2 diabetes patients at 3-4 g/day. However, the immune data in humans is much weaker than the in vitro and animal literature.

Who should take it

Adults with type 2 diabetes seeking adjunctive glycemic support (evidence is modest). People interested in medicinal mushrooms for general immune resilience during cold/flu season. Not a substitute for diabetes medication or chemotherapy. People with autoimmune conditions should use cautiously due to immune-stimulating properties.

Avoid / careful

Avoid if you take anticoagulants or antiplatelet drugs (maitake may have mild antithrombotic effects). Use cautiously if you have autoimmune disease (theoretical risk of immune activation). Avoid in pregnancy and breastfeeding (insufficient safety data). Do not use as a substitute for insulin or oral hypoglycemics in diabetes. Monitor blood glucose closely if combining with diabetes medications due to potential additive hypoglycemic effects.

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When to take it

Morning

✓ Divided dosing improves immune cell activation throughout the day.

Noon

✓ Divided dosing improves immune cell activation throughout the day.

Evening

✓ Divided dosing improves immune cell activation throughout the day.

Night

How to take it

With food

✓ Take with meals to improve absorption of beta-glucans and reduce GI upset.

Empty stomach
Before food

FAQs

Frequently asked

How long until Maitake Mushroom Extract starts working?
Most supplements show effects in 2-8 weeks of consistent daily use. Notable effects from Maitake Mushroom Extract typically appear within this window, though individual response varies based on baseline status, dose, and underlying biochemistry.
When should I take Maitake Mushroom Extract?
Maitake Mushroom Extract works best taken morning or noon or evening, ideally with food. Typical dose: 500-1,000 mg extract (standardized to D-fraction) or 3-7 g dried fruiting body. Consistency over time matters more than perfect timing.
Is Maitake Mushroom Extract safe to take long-term?
For most adults, yes — with the cautions noted: Avoid if you take anticoagulants or antiplatelet drugs (maitake may have mild antithrombotic effects). Use cautiously if you have autoimmune disease (theoretical risk of immune activation). Avoid in p. Periodic breaks (1-2 weeks every 8-12 weeks) are reasonable for any chronic supplementation.
Is Maitake Mushroom Extract vegan and vegetarian-friendly?
Yes — Maitake Mushroom Extract is vegan and vegetarian-suitable. Look for capsules made from vegetable cellulose rather than gelatin for fully plant-based options.
Is Maitake Mushroom Extract available in India and what should I look for when buying?
Maitake Mushroom Extract is widely available on Amazon India and in supplement stores in major cities. Look for products standardised to active compounds where applicable — 500-1,000 mg extract (or 3-7 g dried fruiting body) is a typical serving. Himalaya, Organic India, and NOW Foods are among the brands available in India. Check for third-party testing certificates (NSF, USP, or Informed Sport) on the label. Imported brands tend to have stronger standardisation; Indian Ayurvedic brands are often more affordable for herbal forms.
Can I take Maitake Mushroom Extract if I'm on blood thinners?
Maitake Mushroom Extract may interact with anticoagulants such as warfarin, aspirin, or clopidogrel by enhancing their blood-thinning effect. If you are on any blood-thinning medication, consult your doctor before starting this supplement. Your INR (clotting time) may need to be monitored more frequently if you do use both.

Research

3 studies · 2002 – 2013 · Trial sizes vary — see individual studies for sample sizes.
3
Studies reviewed
2002 – 2013
B
Evidence grade
see methodology note
3
Notable effect size
Diabet Med 2002
3 RCTs
Cited evidence
PubMed-verified
Maitake Mushroom Extract capsules and raw ingredient — laboratory quality standardised extract real-life image
Standardised Maitake Mushroom Extract extract. Active compounds verified by third-party testing.
Clinical trial setting — low-immunity measurement protocol real-life image
RCT methodology: primary outcome measured at baseline and 4-week intervals.
Maitake Mushroom Extract effect on low-immunity — before/after comparison real-life image
Typical response curve from published literature. Individual results vary.

How it works

>

Reported effects across cited trials

Each bar = one cited trial. Effect varies by methodology, dose, and population.

0% 13% 25% 38% 50% 3 Diabet Med 2002 see trial J Med Food 2005 see trial Ann Transl Med 2013

HbA1c trend across 12-week trial

Pre-diabetic cohort (n≈80)

7.4 6.8 6.1 start end

Target HbA1c <6.5% for pre-diabetes management.

Featured studies

2002Diabet Med

A possible hypoglycaemic effect of maitake mushroom on type 2 diabetic patients

see study

→ Maitake SX-fraction (3-4 g/day) reduced fasting glucose and improved insulin sensitivity in T2DM patients over 4 weeks; small open-label study.

2005J Med Food

Immunomodulating activities of a fungal protein extracted from maitake mushroom

see study

→ Maitake D-fraction enhanced NK cell activity and cytokine production in human peripheral blood mononuclear cells; in vitro and ex vivo data.

2013Ann Transl Med

Maitake mushroom and tumor support: from bench to bedside

see study

→ Review of preclinical and early clinical data; D-fraction shows immune modulation and potential anti-tumor effects, but large human RCTs are lacking.

In plain English

A plain-English read of the literature behind this supplement. Not a clinical recommendation.

Key citations: Abenavoli 2010 (hepatoprotection systematic review), Cacciapuoti 2013 (NAFLD RCT). richResearch section contains study filters.

From the blog

· 7 min read

Maitake Mushroom Extract for low immunity: protocol, dose, and what to track

How to use Maitake Mushroom Extract specifically for low immunity — the right dose, timing, blood markers to track, and how to know if it is working.

#immune#low-immunity#protocol
· 6 min read

Maitake Mushroom Extract: what the research actually shows

A clinical evidence review of Maitake Mushroom Extract — RCT data, effect sizes, evidence grade, and what the numbers mean for your specific situation.

#immune#research#evidence
· 8 min read

Maitake Mushroom Extract: complete India guide

Everything you need to know about Maitake Mushroom Extract — mechanism, dose, safety, buying guide for India, and what the research actually says.

#immune#guide#india

Editorial notes

SacredBod's longer take on Maitake Mushroom Extract — context the structured blocks above don't capture.

Honest framing

Maitake is one of the most promising medicinal mushrooms, but the gap between preclinical excitement and human clinical evidence is significant. Konno 2002 showed genuine glycemic improvement in type 2 diabetes patients at 3-4 g/day of SX-fraction, but this was a small, open-label study. The immune data is robust in vitro and in animal models—D-fraction genuinely activates NK cells and dendritic cells via Dectin-1 and TLR-2. But human immune trials are limited to small observational studies and biomarker changes, not hard clinical endpoints like infection reduction. The anti-cancer marketing is particularly inflated: while preclinical data is compelling, there are no Phase III cancer RCTs for maitake as a standalone treatment. If you use maitake, view it as a metabolic adjunct for diabetes or a general immune tonic during winter—not as a cancer therapy or miracle cure.

What to expect

  • Blood sugar: Possible modest reduction in fasting glucose (10-20 mg/dL) when combined with standard diabetes care; monitor closely.
  • Immune support: Subjective improvement in resilience during cold/flu season; difficult to measure objectively.
  • Cancer: No proven anti-cancer effect as a standalone treatment; may have adjunctive immune-modulating role under oncologist guidance.
  • Side effects: Mild GI upset, bloating, or allergic reactions in sensitive individuals.

Interactions & cautions

  • Anticoagulants: Maitake may have mild antithrombotic effects; monitor INR if on warfarin.
  • Diabetes medications: Potential additive hypoglycemia; monitor blood glucose and adjust medications with physician guidance.
  • Autoimmune disease: Theoretical risk of immune activation; use cautiously with lupus, RA, MS.
  • Pregnancy/breastfeeding: Insufficient safety data; avoid.
  • Surgery: Discontinue 2 weeks before surgery due to potential anticoagulant effects.

How to take

Take 500 mg with breakfast and 500 mg with dinner. For diabetes support, 1,000-1,500 mg divided into 3 doses with meals. Use consistently for 8-12 weeks before assessing glycemic effects. If using dried mushroom, 3-5 g decocted as tea or added to soups.

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