Cordyceps Militaris
Research Reliability -
A medicinal fungus studied for boosting cellular ATP production and VO2 max, popular among endurance biohackers.
Appetite
Mood
Sleep
Cordyceps Militaris
Description
Cordyceps militaris is the cultivated, sustainably sourced cousin of the rare wild Cordyceps sinensis and contains comparable levels of cordycepin and adenosine, compounds studied for increasing cellular ATP production and oxygen utilization. Several small human trials show modest but measurable improvements in VO2 max and exercise time-to-exhaustion, particularly in older or previously sedentary adults, making it a staple in endurance-athlete biohacking stacks alongside more established options like beta-alanine and creatine.
Effects
First week
subtle
Weeks 2–4
endurance and oxygen efficiency may improve
Ongoing
energy and immune support
How it Feels
A gentle endurance and energy supporter rather than a stimulant; athletes sometimes notice easier breathing or stamina over a few weeks. It is calm energy, not a jolt. Effects build with consistent use.
Usage
Entry Dose
500mg
Standard Dose
1000mg
Max Dose
2000mg
Onset
2–4 weeks
Combinations
Pairs well with
Synergistic
Beta-Alanine — complementary endurance mechanisms (ATP/oxygen utilization vs. buffering capacity)
Rhodiola Rosea — both target exercise-induced fatigue through distinct adaptogenic and bioenergetic pathways
Avoid combining
Contraindicated
Autoimmune conditions — immune-modulating mushrooms may theoretically stimulate immune activity
Blood thinning medications — mild antiplatelet effects reported
Biomarkers to Track
Subjective
(Daily)
Exercise endurance and perceived exertion
Energy levels (1–10)
Recovery time between training sessions
Objective
(Quarterly)
VO2 max (lab or wearable estimate)
Resting and exercise heart rate
Lactate threshold (if tested)
Generally safe. Mild digestive upset at most.
People with autoimmune conditions or on blood thinners should check, and pregnant women.
Expecting a stimulant jolt, when it builds calm endurance over weeks.
Preliminary (limited / small human data)
Performance benefits are inconsistently replicated across the small number of available human trials.
Chen S et al. (2010). Journal of Alternative and Complementary Medicine, 16(5), 585-590. RCT (Cordyceps and exercise performance/VO2). PMID: 20804368.