Cordyceps
Cordyceps sinensis · Cordyceps militaris
Cordyceps refers to a genus of medicinal fungi, with two species predominantly used in supplements: Cordyceps sinensis (the original wild Tibetan caterpillar fungus) and Cordyceps militaris (cultivated, more available). Used in traditional Chinese medicine for centuries for energy, endurance, and respiratory health. The cultivated militaris form is dramatically more available and affordable than wild sinensis.
Morning and pre-workout common. Avoid evening if sensitive to mild stimulant effect.
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
Cordyceps' actions are attributed to multiple bioactive compounds:
Cordycepin (3'-deoxyadenosine)
Adenosine analog with diverse effects on RNA polymerase, adenosine receptors, and energy metabolism.
Polysaccharides
β-glucans and related polysaccharides are immunomodulatory - activate macrophages, NK cells, and cytokine networks similar to other medicinal mushroom polysaccharides.
Oxygen Utilization
Mechanistically unclear but consistent across small trials - cordyceps appears to improve oxygen uptake efficiency at submaximal exercise. May involve mitochondrial efficiency.
Adaptogenic
Modest stress-resistance and fatigue-reduction effects in chronic stress models.
Adenosine Effects
Cordycepin is structurally close to adenosine - may modulate adenosine receptor signaling, including effects on energy metabolism and inflammation.
What to expect
Days 1-7: subtle subjective effects.
Weeks 2-4: performance markers improve.
Weeks 4-12: peak cardiorespiratory adaptation.
Evidence
Claims we could not support
No abstract we checked supports these for this molecule at this route. That is not the same as saying they are false — it marks where the evidence is missing.
Quick-start dose/route: 1-3 g oral capsule or powder 1-3x daily. GAP — UNSUPPORTED NONSTANDARDIZED PRODUCT. PMID 38501161 administered 1 g Cordyceps sinensis before exercise but did not identify an oral capsule/powder formulation in the abstract; PMID 27408987 used a 4 g multi-mushroom blend.
Mechanism: cordycepin, beta-glucans, oxygen-utilization, and adaptogenic signaling. No checked abstract supported this composite mechanism for a defined species, extract, formulation, route, and human population.
Primary safety: GI upset, fungal allergy, or bleeding risk. No checked human abstract supported these claims. Embedded PMIDs 20629583 and 30048702 resolve to unrelated papers; PMID 24447782 returned no PubMed article in live EFetch.
Side effects & safety
Commonly reported
- Mild GI upset
- Dry mouth
- Mild stimulant effect
Less common & notes
- Allergic reactions to fungal protein.
- Theoretical bleeding risk at high doses (cordycepin antiplatelet potential).
- Long-term safety good per traditional use.
Pharmacokinetics
Cordycepin ~30 min plasma; polysaccharides longer
Hours plasma; cumulative tissue effects over weeks
Oral moderate
Days for cumulative effects
Hepatic
Storage. Capsule/powder. Cool, dry location. Keep sealed.
Regulatory status
Dietary supplement (US, DSHEA). EU and Asian markets have varying classification - sometimes traditional medicine, sometimes supplement.
Put it to work
Calculate, log & track
Open Cordyceps straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.
Open Cordyceps in the app →Go deeper
The guide & community
The complete Cordyceps walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
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