# Phellinus Igniarius (Willow Bracket) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/phellinus-igniarius-willow-bracket **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-18 **Evidence Score:** 4 / 10 **Category:** Mushroom/Fungi **Also Known As:** Phellinus igniarius, False Tinder Fungus, Fire Sponge, Willow Fire Fungus, Sang Huang, Meshimakobu, Tree Ear Bracket ## Overview Phellinus igniarius is a medicinal mushroom containing beta-glucans and phenolic compounds that modulate [immune function](/ingredients/condition/immune-support) and exhibit anti-cancer properties. Its polysaccharides enhance macrophage activity while its phenolic acids provide [antioxidant protection](/ingredients/condition/antioxidant) against cellular damage. ## Health Benefits - Supports [immune system](/ingredients/condition/immune-support) function by enhancing the activity of macrophages and T-cells, increasing the body's defense against pathogens. - Exhibits anti-cancer properties by inducing apoptosis in cancer cells, potentially reducing tumor growth. - Contains antioxidants that neutralize free radicals, protecting cells from [oxidative stress](/ingredients/condition/antioxidant) and aging. - Regulates blood sugar levels by improving [insulin sensitivity](/ingredients/condition/weight-management), which may aid in diabetes management. - Reduces [inflammation](/ingredients/condition/inflammation) through modulation of cytokine production, alleviating symptoms of chronic inflammatory diseases. - Promotes gut health by fostering beneficial gut bacteria, enhancing [digestion](/ingredients/condition/gut-health) and nutrient absorption. - Enhances [cognitive function](/ingredients/condition/cognitive) by protecting neurons from damage, potentially improving memory and focus. ## Mechanism of Action Phellinus igniarius contains [beta-glucan](/ingredients/condition/immune-support)s that bind to CR3 and Dectin-1 receptors on macrophages, activating complement receptor pathways and enhancing phagocytic activity. The mushroom's phenolic compounds, including protocatechuic acid and caffeic acid, scavenge [reactive oxygen species](/ingredients/condition/antioxidant) through electron donation. Its polysaccharides also modulate T-cell proliferation by influencing [cytokine](/ingredients/condition/inflammation) production pathways including IL-2 and interferon-gamma. ## Clinical Summary Research on Phellinus igniarius is primarily limited to in vitro and animal studies, with few human clinical trials available. Laboratory studies demonstrate that extracts containing 20-40% [beta-glucan](/ingredients/condition/immune-support)s can increase macrophage activation by 60-80% compared to controls. Animal studies using 200-500mg/kg doses showed enhanced immune responses and reduced tumor growth in cancer models. Human clinical evidence remains insufficient to establish therapeutic efficacy or optimal dosing protocols. ## Nutritional Profile - Rich in polysaccharides and polyphenols. - Contains [beta-glucan](/ingredients/condition/immune-support)s and triterpenoids. - Low in calories and fat. ## Dosage & Preparation Typically consumed as a tea or extract, with doses ranging from 1-3 grams per day. Consult a healthcare provider before use. ## Safety & Drug Interactions Phellinus igniarius appears generally well-tolerated in animal studies with no significant acute toxicity reported at standard doses. Potential side effects may include mild gastrointestinal upset or allergic reactions in sensitive individuals. The mushroom may enhance immune responses, potentially interacting with immunosuppressive medications or autoimmune treatments. Safety during pregnancy and breastfeeding has not been established, and use should be avoided during these periods. ## Scientific Research Phellinus Igniarius has been studied in vitro and in animal models for its immune-boosting and anti-cancer properties. Human clinical trials are limited. ## Historical & Cultural Context Phellinus Igniarius has been used in traditional medicine in Asia for centuries, valued for its health-promoting properties. ## Synergistic Combinations Reishi, Shiitake, Maitake ## Frequently Asked Questions ### What bioactive compounds are found in Phellinus igniarius? Phellinus igniarius contains beta-glucans (10-25% of dry weight), phenolic acids including protocatechuic and caffeic acid, and triterpenes. The beta-glucans are primarily responsible for immune-modulating effects while phenolic compounds provide antioxidant activity. ### How much Phellinus igniarius should I take daily? No standardized human dosage exists for Phellinus igniarius due to limited clinical research. Animal studies used 200-500mg/kg body weight, which would translate to approximately 1-3 grams daily for humans, though this is theoretical. ### Can Phellinus igniarius help with cancer treatment? Laboratory studies show Phellinus igniarius extracts can induce apoptosis in cancer cell lines and reduce tumor growth in animal models. However, no human clinical trials have proven anti-cancer efficacy, and it should not replace conventional cancer treatments. ### How long does it take for Phellinus igniarius to show immune effects? Animal studies suggest immune-modulating effects from Phellinus igniarius may begin within 1-2 weeks of supplementation. Enhanced macrophage activity was observed after 7-14 days of treatment in laboratory studies, though human timeframes remain unestablished. ### Does Phellinus igniarius interact with blood pressure medications? No specific interactions between Phellinus igniarius and blood pressure medications have been documented. However, its immune-modulating effects could theoretically affect inflammatory pathways that influence cardiovascular function, warranting medical supervision. ### Is Phellinus igniarius safe to take during pregnancy or while breastfeeding? There is limited clinical research on Phellinus igniarius safety during pregnancy and breastfeeding, so it is generally recommended to avoid supplementation during these periods unless directed by a healthcare provider. The polysaccharides and bioactive compounds in this mushroom may affect immune function and hormone levels, which could potentially impact fetal development or milk composition. Pregnant and nursing women should consult with their doctor before using this supplement. ### What is the most bioavailable form of Phellinus igniarius—extract, powder, or fruiting body? Hot water extracts and standardized extracts of Phellinus igniarius are generally more bioavailable than raw powder, as the extraction process breaks down the mushroom's rigid cell walls and concentrates beta-glucans and polysaccharides. Dual-extraction methods (water and alcohol) are often considered superior because they capture both water-soluble and fat-soluble compounds. Fruiting body powder has lower bioavailability due to the chitin cell wall remaining largely indigestible without processing. ### Does Phellinus igniarius interact with blood sugar or diabetes medications? Since Phellinus igniarius may help regulate blood sugar levels through improved insulin function, combining it with diabetes medications could potentially increase the risk of hypoglycemia (low blood sugar). Individuals taking diabetes medications such as metformin, sulfonylureas, or insulin should consult their healthcare provider before supplementing and monitor their blood glucose levels closely. Dose adjustments may be necessary to maintain safe blood sugar control. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*