MagazineFunctional mushrooms for female athletes: Cordyceps and performance without caffeine
Functional mushrooms for female athletes: Cordyceps and performance without caffeine
Cordyceps is making its way into sports nutrition. The clinical data are specific and measurable, this is about VO2max, not marketing.
Why Cordyceps and sport
Cordyceps militaris contains cordycepin, an adenosine analog that influences the production of ATP (adenosine triphosphate), the cell’s primary energy currency. Higher ATP production means more energy available for muscle contractions under load. At the same time, Cordyceps improves oxygen utilization, which translates directly into VO2max.
What the studies say
A pioneering double-blind RCT (Hirsch et al., Journal of Dietary Supplements, 2017) followed 28 adults taking 4 g of Cordyceps militaris daily over a period of 3 weeks:
- VO2max: +4.8 ml/kg/min vs. +0.9 ml/kg/min in the placebo group (p = 0.042)
- Time to exhaustion: +69.8 seconds after 3 weeks
- Ventilatory threshold: +0.7 l/min
A 2026 narrative review (Nutrients, Jędrejko et al.) analyzed 5 clinical studies with 321 participants (2017 to 2024) and confirmed ergogenic effects on VO2max, time to exhaustion and performance, with the caveat that the studies are still small and further research is needed.
An older study with older subjects: 37 older Chinese adults took Cordyceps sinensis (Cs-4) over a period of 6 weeks. VO2max increased to a statistically significant degree, while in the placebo group it remained unchanged (p = 0.050).
Who it makes sense for
- Endurance sports: running, cycling, swimming, hiking. VO2max and time to exhaustion are the key metrics.
- Interval training: Cordyceps improves tolerance of high intensity. Research shows an effect on repeated performance peaks as well.
- Women 30+ with an active lifestyle: Physical fatigue in women after thirty deepens not only with age, but also with hormonal changes. Cordyceps targets energy metabolism independently of the hormonal background.
Practical recommendations
- Dose: from clinical studies, 3 to 4 g of the total mushroom blend daily. With concentrated extracts the dose is lower, depending on the degree of extraction.
- Timing: in the morning or 60 to 90 minutes before training. Cordyceps is not suitable in the evening hours, it can disrupt sleep.
- Time horizon of the effect: the first week without a significant difference. After 3 weeks of daily use the results are measurable.
“Cordyceps is not a stimulant. It is a cellular optimizer. And unlike caffeine, it does not build tolerance.”
