SubEx

Mushroom

Cordyceps militaris

The farmed species carrying almost all the human research, which comes to five studies in 321 people. Standardised to a compound the body clears fast.

Findings
5
Best evidence
★★☆
Open questions
1

At a glance

Myth check

The farmable cordyceps that gives you the same benefits as the rare wild kind, standardised to a guaranteed level of cordycepin.

This species carries most of the actual human research, and there is very little of it: five intervention studies covering 321 people, all aged 16 to 35, with inconsistent results, mostly unregistered, and mostly testing multi-ingredient blends rather than the mushroom alone. It genuinely contains more cordycepin than the wild species does. Whether that matters is unresolved, because cordycepin is broken down rapidly in the body by the enzyme adenosine deaminase, and the amounts present are far below those used in the laboratory work that built its reputation. It is a different species from the wild caterpillar fungus, not a cheaper version of it.

Standardising to cordycepin makes a product measurable, not effective. The compound being counted is one the body clears fast, at concentrations no human trial has shown to do anything.

The findingsStrongest first
1
OtherCordyceps' active compound breaks down fast once it is inside you

Cordycepin, the compound the marketing rests on, is taken apart by an enzyme your body already makes, leaving it a short half-life and low bioavailability.

★★☆Single study — solid evidence, such as one good trial or a large observational dataset, but not replicated at the top tier.The pharmacology paper is a review and reports no human half-life figure. Its interest is in engineering cordycepin into something usable, with an enzyme inhibitor, a redesigned molecule or a new delivery system, none of which exists in a capsule. And it never asks the separate question of whether the amounts in a supplement would matter even if they did survive.Click to keep this openBoost energy
2
OtherThe product with the most cordycepin is not the one that releases it

Supplements led on raw cordycepin at 81.4 mg per 100 g, but run through a simulated gut the fruiting bodies released the most, about 26 mg per 100 g.

★★☆Single study — solid evidence, such as one good trial or a large observational dataset, but not replicated at the top tier.Two commercial supplements were tested, so this describes two products rather than a market. The digestion was simulated in a laboratory model, which estimates what could be released into the gut, not what reaches the bloodstream or any tissue. No health outcome was measured anywhere in the study.Click to keep this openBoost energy
3
OtherProducts sold as wild cordyceps often hold a cheaper fungus

DNA testing of supplements labelled Ophiocordyceps sinensis, the costly wild caterpillar fungus, turned up the cheaper Ophiocordyceps militaris instead.

★★☆Single study — solid evidence, such as one good trial or a large observational dataset, but not replicated at the top tier.Both are method papers: they show substitution happens without reporting how often it happens across a defined slice of the market. The products were bought in Asia, so the rate may not carry over to Western shelves. And DNA says which species is present, not how much of the product it accounts for.Click to keep this openBoost energy
4?
Physical & bodyFive human studies of Cordyceps militaris exist, and they disagree

The five tested 321 people aged 16 to 35 at doses spanning twelvefold, 1 to 12 grams. Some found gains in aerobic performance; across the five the results were inconsistent.

★★☆Single study — solid evidence, such as one good trial or a large observational dataset, but not replicated at the top tier.The review appraised each study for bias but never pooled them, so there is no combined estimate here, only five separate results. It covers Cordyceps militaris alone, leaving out both the wild caterpillar fungus and the fermented mycelium products that fill much of the retail shelf.Click to keep this openBoost energy
5
OtherTwo cordyceps supplements held a cholesterol drug, unlabelled

Lovastatin measured 53.6 mg per 100 g of dry weight in the two retail Cordyceps militaris products analysed, and nobody buying them was told it was there.

★☆☆Contested — the evidence disagrees with itself, or the finding carries a caution. A caution or conflict always shows one star, however strong the sources are.CautionTwo products were tested, so this is a finding about two capsules on a shelf, not a rate across the market. The study measured content and stopped there: nobody swallowed anything, and no effect on cholesterol or on anything else was looked for.Click to keep this openBoost energy
Sources6 behind this page

What we don't know

1 open question