Cordyceps is a parasitic fungus with a 1,500-year history in traditional Chinese medicine. Our research shows emerging evidence for exercise performance enhancement — a 2016 RCT found cordyceps militaris increased VO2 max by 7% in young adults after 3 weeks. The active compounds (cordycepin and adenosine analogs) genuinely affect oxygen utilization and ATP production. Wild Cordyceps sinensis costs $20,000-50,000/kg and is frequently counterfeited; the cultured Cordyceps militaris (CS-4 strain) is what's actually studied and commercially available.
Cordyceps' primary active compound is cordycepin (3'-deoxyadenosine), which is structurally similar to adenosine — the molecule that forms the backbone of ATP (your cellular energy currency). Cordycepin increases cellular ATP production, improves oxygen delivery to muscles by upregulating erythropoietin (EPO) gene expression, and reduces lactate accumulation during exercise. It also modulates the immune system by activating NK cells and macrophages while reducing inflammatory cytokines. The CS-4 strain was developed after wild C. sinensis became unsustainably expensive and frequently adulterated.
Reviewed by the Scan Dose Research Team and Clinical Advisory Board | Last updated:
Not medical advice. Based on published clinical research and systematic reviews.