
Hermetica Superfood Encyclopedia
Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.
Review flags: AWAITING_SEMANTIC_VALIDATION
PeakO2 is a patented blend of six adaptogenic mushrooms (cordyceps, reishi, shiitake, himematsutake, king trumpet, and turkey tail) that enhances athletic performance through improved oxygen utilization. The key bioactive compounds include cordycepin and beta-glucans that optimize mitochondrial function and cellular energy production.

Reported Benefits (Provisional)
Origin & History

PeakO2 is a blend of six adaptogenic mushrooms including Cordyceps, Reishi, and Shiitake. These mushrooms are cultivated in the USA and are known for their performance-enhancing properties.
Research Narrative (Provisional)
Several studies, including randomized controlled trials, have shown that PeakO2 can improve oxygen utilization and increase time to exhaustion in athletes.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
PeakO2 is a standardized blend of 6 adaptogenic mushrooms: Cordyceps militaris, Reishi (Ganoderma lucidum), King Trumpet (Pleurotus eryngii), Shiitake (Lentinula edodes), Lion's Mane (Hericium erinaceus), and Turkey Tail (Trametes versicolor). Typical clinical dose is 2–4g/day. Key bioactive compounds include: Beta-glucans (primary active polysaccharides, approximately 20–40% by dry weight across the blend) which are the main immunomodulatory and adaptogenic drivers; Cordycepins (3'-deoxyadenosine) from Cordyceps militaris, concentrated at approximately 0.1–0.3% of Cordyceps fraction, responsible for ATP synthesis enhancement and oxygen utilization; Adenosine from Cordyceps fraction supporting mitochondrial energy production; Triterpenes and ganoderic acids from Reishi fraction (approximately 1–2% of Reishi component) with anti-fatigue and antioxidant properties; Ergothioneine, a rare amino acid-derived antioxidant present across multiple mushroom species in the blend; Eritadenine from Shiitake fraction supporting cardiovascular function; Hericenones and erinacines from Lion's Mane fraction (approximately 0.5% of Lion's Mane component) with neuroprotective properties; PSK and PSP polysaccharopeptides from Turkey Tail fraction. Macro profile per 2g serving: Protein approximately 0.3–0.5g, Carbohydrates approximately 1.2–1.5g (primarily beta-glucans and chitin), Fat less than 0.1g, Fiber approximately 0.8–1.0g (chitin-bound). Micronutrients include trace amounts of Vitamin D2 (ergocalciferol, variable depending on light exposure during cultivation), B vitamins including B2, B3, and B5 in minor quantities, Potassium, Phosphorus, Selenium, and Copper in trace amounts. Bioavailability notes: Beta-glucans have moderate bioavailability; hot-water extraction or dual extraction significantly improves bioactive compound release compared to raw powder. Cordycepin bioavailability is enhanced when consumed without adenosine deaminase inhibitors. Chitin cell walls reduce raw digestibility, making extraction-standardized forms (as used in PeakO2) significantly more bioavailable than non-extracted mushroom powders. The blend is standardized to ensure consistent beta-glucan and cordicepsin concentrations across batches.
Reported Mechanism (Provisional)
PeakO2's cordycepin from cordyceps militaris activates AMPK pathways and increases ATP production in mitochondria. The beta-glucans enhance oxygen-carrying capacity by improving red blood cell efficiency and hemoglobin utilization. Triterpenes from reishi modulate cellular respiration and reduce oxidative stress during high-intensity exercise.
Clinical Narrative (Provisional)
A randomized controlled trial with 28 trained athletes showed PeakO2 supplementation (2g daily for 7 days) increased time to exhaustion by 17.6% compared to placebo. Peak power output improved by 70 seconds during anaerobic capacity tests. Additional studies demonstrate enhanced VO2 max and reduced lactate accumulation, though most trials are small-scale with 20-40 participants.
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