Maitake D Fraction Standard
Product analysis
Maitake D Fraction Standard combines a mushroom extract with vitamin C for immune-related nutritional support. Its favorable serving cost adds appeal, although the mushroom’s routine benefits remain uncertain.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
The maitake preparation and vitamin C form are identified, but their comparative quality remains uncertain. Separate maitake declarations give different quantities, so they should not be combined into an assumed total.
Ingredient Transparency100
Both ingredient amounts and forms are disclosed. That helps identify the preparation when comparing similar supplements.
Value For Money79
The serving cost is favorable when considering maitake. Value for the added vitamin C remains uncertain, leaving the mushroom as the clearest value strength.
Customer Satisfaction77
Customer ratings are strongly positive. The substantial review base adds useful context to the positive ratings.
Product Focus74
The short formula stays centered on immune-related support. Vitamin C contributes to normal immune function, while the mushroom evidence does not establish routine adult benefits from this preparation.
- Format
Capsule - Container
- 360 Capsule(s)
- Per serving
- $0.56
- Also available
Maitake D Fraction Standard$20.44- Customer rating
- 4.7 · 627 ratings
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Maitake (Grifola frondosa) fruiting body powder | 600 mg | |
PD-Fraction (Maitake Fruiting Body Extract) | 40 mg | |
Vitamin C (Ascorbic Acid) | 40 mg |
How this ingredient is rated
Composition and Label Disclosure0
Named Maitake Marker Disclosure
Composition and Label Disclosure100
Individual Preparation Amount Disclosure
Commercial Price and Usability100
Commercial Price per Labeled Serving
Alternative products
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Maitake mushroom supplementation modulates upper respiratory symptoms and immune responses in healthy adults: a randomized, double-blind, placebo-controlled trial.
- A phase I/II trial of a polysaccharide extract from Grifola frondosa (Maitake mushroom) in breast cancer patients: immunological effects.
- Maitake mushroom extract in myelodysplastic syndromes (MDS): a phase II study.
- Effect of Maitake (Grifola frondosa) D-Fraction on the activation of NK cells in cancer patients.
- 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.
- Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
- Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
- New evidence for antioxidant properties of vitamin C.
- Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.