Hermetica Superfood Encyclopedia
The Short Answer
PSP (Polysaccharopeptide) is a bioactive protein-bound polysaccharide extracted from Trametes versicolor mushrooms that modulates immune function through beta-glucan receptors. This compound enhances natural killer cell activity and macrophage function while demonstrating anti-tumor properties in clinical studies.
CategoryMushroom
GroupMushroom Compound
Evidence LevelStrong
Primary KeywordPSP polysaccharopeptide benefits
Synergy Pairings5
PSP (Polysaccharopeptide) — botanical close-up
Health Benefits
Boosts immune function by enhancing the activity of macrophages and natural killer cells, crucial for pathogen defense. - Supports cancer treatment by inhibiting tumor growth and enhancing the effects of chemotherapy. - Reduces inflammation by modulating cytokine production, aiding in the management of inflammatory conditions. - Promotes gut health by fostering beneficial gut bacteria, improving digestion and nutrient absorption. - Provides antioxidant protection by neutralizing free radicals, reducing oxidative stress and preventing cellular damage. - Enhances liver health by promoting detoxification processes and protecting against liver damage. - Supports cardiovascular health by lowering cholesterol levels, reducing the risk of heart disease.
Origin & History
Natural habitat
PSP is derived from the Coriolus versicolor mushroom, which is cultivated and processed to extract the active polysaccharopeptides.
“Coriolus versicolor, known as 'Yun Zhi' in Chinese medicine, has been used traditionally for its health-promoting properties.”Traditional Medicine
Scientific Research
Research on PSP includes clinical trials indicating its potential benefits in enhancing immune function and supporting cancer treatment.
Preparation & Dosage
Traditional preparation
Typical dosages range from 1 to 3 grams daily. Consult a healthcare provider before use.
Nutritional Profile
How It Works
Mechanism of Action
PSP activates immune cells by binding to toll-like receptors (TLR2/TLR4) and complement receptor 3 (CR3) on macrophages and dendritic cells. The compound's beta-1,3 and beta-1,6 glucan structures trigger cytokine release including interleukin-2 and interferon-gamma, while its peptide components modulate T-cell differentiation. PSP also inhibits tumor angiogenesis by suppressing VEGF expression and activating p53-mediated apoptotic pathways in cancer cells.
Clinical Evidence
Human trials involving 650+ cancer patients demonstrate PSP's ability to improve immune parameters when combined with conventional therapy. A randomized controlled trial of 485 gastric cancer patients showed 5-year survival rates improved from 53% to 73% with PSP supplementation at 3g daily. Studies in breast and lung cancer patients report enhanced natural killer cell activity by 40-60% and reduced treatment-related side effects. However, most research originates from Asian populations, and larger Western trials are needed to confirm universal efficacy.
Safety & Interactions
PSP is generally well-tolerated with mild gastrointestinal effects reported in 5-8% of users, including nausea and loose stools at doses above 3g daily. The compound may enhance immune responses and could theoretically interact with immunosuppressive medications used in organ transplant patients. PSP shows potential to improve chemotherapy tolerance but patients should consult oncologists before combining with cancer treatments. Safety during pregnancy and lactation has not been established through controlled studies.
Synergy Stack
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Frequently Asked Questions
What is the recommended PSP dosage for immune support?
Clinical studies typically use 1-3 grams of PSP daily, with cancer patients receiving up to 3.6 grams divided into three doses. Most immune support protocols recommend starting with 1 gram daily and increasing gradually to assess tolerance.
How long does PSP take to show immune system effects?
Measurable increases in natural killer cell activity appear within 2-4 weeks of consistent PSP supplementation. Maximum immune enhancement typically occurs after 8-12 weeks of continuous use at therapeutic doses.
Can PSP be taken with chemotherapy treatments?
Clinical trials show PSP may reduce chemotherapy side effects and improve treatment outcomes when used alongside conventional cancer therapy. However, patients must coordinate with their oncology team before starting PSP supplementation during active treatment.
Is PSP different from other turkey tail mushroom extracts?
PSP specifically refers to protein-bound polysaccharides with peptide components, while PSK (polysaccharide-K) lacks the peptide fraction. PSP typically contains 10-15% protein content compared to simple beta-glucan extracts that contain primarily carbohydrates.
What are the main side effects of PSP supplementation?
The most common side effects include mild digestive upset, nausea, and loose stools, particularly at doses exceeding 3 grams daily. Some users report temporary fatigue during the first week as the immune system adjusts to enhanced activity.
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