Maitake D Fraction Standard

Maitake D Fraction Standard

Mushroom Wisdom4.6 (433 ratings)
Format:Capsule Quantity: 120 Capsule(s) · 30 servings
Goals

Product analysis

70 out of 100

Maitake D Fraction Standard offers an economical combination of maitake extract and vitamin C for immune support. Findings for maitake depend on the specific preparation, so the extract amount alone cannot tell you how much benefit to expect.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality40

The maitake extract and vitamin C forms are identified, but their quality remains uncertain. Differing maitake quantity declarations also leave its total amount unclear.

Ingredient Transparency100

Both active ingredients have disclosed amounts and forms. The differing maitake quantity declarations still make its total amount difficult to interpret.

Value For Money79

The cost per serving is very economical for the maitake component. Value for the added vitamin C remains uncertain.

Customer Satisfaction75

Customer ratings are very positive across several hundred buyers. That provides a useful satisfaction signal without establishing an immune benefit.

Product Focus74

The simple combination stays focused on immune support. Maitake findings depend on the preparation and the people studied, so the expected benefit remains uncertain.

Format
Capsule
Container
120 Capsule(s)
Per serving
$0.68
Customer rating
4.6 · 433 ratings
Report analysis

Goals

Immunity
Impact
High effect
A- Ingredient FitF PathwaysB+ EvidenceA+ Formulation Logic
Vitamin C · 40 mgMaitake Mushroom · 40 mg
Study evidence
Vitamin C Supportive 53 studies

Ingredients

IngredientAmount per servingScore
Maitake (Grifola frondosa) fruiting body powder
600 mg 60
PD-Fraction (Maitake Fruiting Body Extract)
40 mg 60
Vitamin C (Ascorbic Acid)
40 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
F Composition And Label DisclosureA+ Composition And Label DisclosureA+ Commercial Price And Usability
A serving provides 640 mg of maitake. The full product has a low cost per serving. It combines maitake fruiting body powder and extract. No numeric beta-glucan or polysaccharide content is available.
How this ingredient is rated

Composition and Label Disclosure0

The available information gives no numeric beta-glucan or polysaccharide content, so their amounts are unclear.
Named Maitake Marker Disclosure
No numeric beta-glucan or polysaccharide content is disclosed.

Composition and Label Disclosure100

A serving provides 640 mg of maitake. It combines maitake fruiting body powder and extract.
Individual Preparation Amount Disclosure
The individual maitake preparation amount is stated as 640 mg per serving.

Commercial Price and Usability100

The full product has a low price per serving.
Commercial Price per Labeled Serving
The whole-product cost per labeled serving is low.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Maitake mushroom supplementation modulates upper respiratory symptoms and immune responses in healthy adults: a randomized, double-blind, placebo-controlled trial.
    Masuda Y; Nakayama Y; Shimizu R; Jogi EM; Kato MC; Yamasaki K; Aoki R; Hashimoto M; Ohno M; Ohata S; Kato S; Konishi M · Food & function · 2026
    Randomized trialImmunity forMaitake Mushroom
  2. A phase I/II trial of a polysaccharide extract from Grifola frondosa (Maitake mushroom) in breast cancer patients: immunological effects.
    Deng G; Lin H; Seidman A; Fornier M; D'Andrea G; Wesa K; Yeung S; Cunningham-Rundles S; Vickers AJ; Cassileth B · Journal of cancer research and clinical oncology · 2009
    Single-arm trial34 participantsImmunity forMaitake Mushroom
  3. Maitake mushroom extract in myelodysplastic syndromes (MDS): a phase II study.
    Wesa KM; Cunningham-Rundles S; Klimek VM; Vertosick E; Coleton MI; Yeung KS; Lin H; Nimer S; Cassileth BR · Cancer immunology, immunotherapy : CII · 2015
    Single-arm trial21 participantsImmunity forMaitake Mushroom
  4. Effect of Maitake (Grifola frondosa) D-Fraction on the activation of NK cells in cancer patients.
    Kodama N; Komuta K; Nanba H · Journal of medicinal food · 2004
    Single-arm trial10 participantsImmunity forMaitake Mushroom
  5. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  6. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  7. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  8. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  9. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C