Psilocybin Truffles (Sclerotia): What They Are and How They Differ From Mushrooms
What psilocybin truffles (sclerotia) are, how they differ from mushroom fruiting bodies, what laboratory studies show about variability, and what is and is not known.
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Documented analytical data
Each group below is one study's measurement of the stated specimen or preparation. It is not a typical value for the species or product, varies between specimens, and says nothing about effects or safety. 2 values from 1 source.
Pellegrini M, Rotolo MC, Marchei E, Pacifici R, Saggio F, Pichini S. Magic truffles or Philosopher's stones: a legal... (2 values)
Source: Pellegrini M, Rotolo MC, Marchei E, Pacifici R, Saggio F, Pichini S. Magic truffles or Philosopher's stones: a legal way to sell psilocybin?. Drug Test Anal 2013;5(3):182-185. doi:10.1002/dta.1400. Abstract read 2026-10-22. Laboratory: Dept of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanita, Rome. Method: LC-MS/MS (MRM). Date: not reported in abstract (2012/2013 publication).
| Specimen or preparation | Analyte | Value | What it is | Sample size and scope |
|---|---|---|---|---|
| Psilocybe sclerotia ('magic truffles'), species not named in abstract | psilocybin | 59.3 ug per 100 mg (fresh weight) | lowest value of range (reported) | not stated in abstract. range across examined sclerotia samples (number not stated in abstract) |
| Psilocybe sclerotia ('magic truffles'), species not named in abstract | psilocybin | 167.8 ug per 100 mg (fresh weight) | highest value of range (reported) | not stated in abstract. range across examined sclerotia samples (number not stated in abstract) |
Urgent first. If someone has eaten a mushroom or truffle-like product and is confused, very agitated, vomiting repeatedly, has chest pain, a seizure or trouble breathing, call 911 or US Poison Help at 1-800-222-1222. See poisoning: what to do first. If you are in crisis, call or text 988 (US).
This page is information only: no amounts, no identification help, no sourcing, growing or preparation guidance.
What "magic truffles" are
"Magic truffles" is a trade and everyday name for the sclerotia of some Psilocybe fungi. [1] A sclerotium is a hardened mass of fungal tissue; it is a different structure from the cap-and-stalk fruiting body that people call a mushroom. The word "truffle" here is a trade label, not a scientific term.The sclerotia contain the same psychoactive compound family as mushrooms. A 2013 study found psilocybin, but not psilocin, in the sclerotia it examined. [1] (After any form of psilocybin is taken, the body converts it to psilocin. [2])
Which species?
The studies we read refer to "Psilocybe sclerotia" and do not name the species in their summaries. [1] We did not read a source that states which species give rise to the products sold as truffles, so we do not name any here. Taxonomy pages exist for Psilocybe tampanensis and Psilocybe mexicana; GBIF lists both as accepted species in the family Hymenogastraceae. [3][4] See also the Psilocybe species directory.Composition varies
In the 2013 study, psilocybin in fresh sclerotia ranged from 59.3 to 167.8 micrograms per 100 mg across the samples examined, measured by liquid chromatography with mass spectrometry. [1] That is a nearly threefold spread within one small set of products. It is a measurement of those samples, not a typical content, and it cannot be compared with studies of dried mushrooms. For the wider picture, see psilocybin mushroom chemistry and research limits.How truffles differ from mushrooms
| Feature | Mushrooms (fruiting bodies) | Truffles (sclerotia) |
|---|---|---|
| What the structure is | The above-ground reproductive structure | A hardened mass of fungal tissue |
| Compounds found in sources read | Psilocybin, psilocin and related tryptamines, varying by sample [5] | Only psilocybin in the samples tested [1] |
| Evidence base | Some laboratory studies and clinical trials of pure psilocybin | A few analytical studies; clinical trials used the pure compound, not whole fungal material [5] |
There is no sourced basis here for saying one form is stronger, safer or gentler than the other. Proper evidence not found. See psilocybin mushrooms vs truffles.
What research shows
Evidence labels: promising but limited, insufficient evidence, Proper evidence not found.- Clinical use of truffles: Proper evidence not found. Clinical studies of psilocybin have so far administered the pure compound. [5]
- Microdosing mushrooms or truffles: insufficient evidence. A 2026 systematic review of 11 studies (five quantitative, six qualitative; 3,262 adults) found low-certainty evidence and extreme heterogeneity in dosing and preparations, and concluded a causal effect cannot be inferred. [6] NIDA says research has not established microdosing as safe or effective. [2]
Risks
Risks of psilocybin in general apply: NIDA says it raises blood pressure and heart rate, may be dangerous for people with heart conditions, and can cause extreme fear or panic, with poor mental health outcomes more likely outside clinical settings. [2] There is no data on safety in pregnancy. [2] See psilocybin mushrooms and psychedelic adverse effects and contraindications. Quality is also a concern: in a Portland, Oregon analysis of eight mushroom gummies, labeling was inaccurate in many products. [7] We found no comparable analysis of truffle products.Law: why truffles are discussed separately
Not legal advice; laws change. A 2013 paper described sclerotia as not specifically included in the laws banning the sale, purchase and use of psilocybin and mushrooms containing it, a statement about the laws of that time in the setting of the study. [1] We did not read any current official law on truffles for any country, so their status anywhere is not verified here. United States, federal: the Schedule I list in 21 CFR 1308.11 names psilocybin and psilocyn as substances (eCFR, read 2026-10-22). [8] Online availability says nothing about legality. See plant vs compound and mushroom vs sclerotium distinctions in law and psychedelic legal status by country.Frequently asked questions
Are magic truffles the same as magic mushrooms?
No. Truffles are sclerotia, a different fungal structure from the mushroom, though both can contain psilocybin. [1]
Why are they called truffles?
It is a trade name for the sclerotia of some Psilocybe fungi, not a scientific term. [1]
Are truffles milder or stronger?
Proper evidence not found. Content varied nearly threefold across one small set of samples. [1]
Are truffles legal?
Not verified. We read no current official law on truffles. A 2013 paper said sclerotia were not specifically named in some laws at that time. [1]
Is truffle microdosing proven?
No. A systematic review found low-certainty evidence. [6]
References
- Pellegrini M et al. Magic truffles or Philosopher's stones: a legal way to sell psilocybin? Drug Test Anal 2013. Read 2026-10-22.
- National Institute on Drug Abuse, Psilocybin (Magic Mushrooms). Read 2026-10-22.
- GBIF Secretariat, GBIF Backbone Taxonomy, Psilocybe tampanensis Guzman & S.H.Pollock, record read through the GBIF API. Read 2026-10-22.
- GBIF Secretariat, GBIF Backbone Taxonomy, Psilocybe mexicana R.Heim, record read through the GBIF API. Read 2026-10-22.
- Gotvaldová K et al. Stability of psilocybin and its four analogs in the biomass of the psychotropic mushroom Psilocybe cubensis. Drug Test Anal 2021. Read 2026-10-22.
- Page J et al. The subtle science: a systematic review of psilocybin magic mushroom and truffle microdosing. Front Psychiatry 2026. Read 2026-10-22.
- Correia MS et al. Quantitative analysis of recreational psychoactive mushroom gummies in Portland, Oregon. Clin Toxicol 2025. Read 2026-10-22.
- US Electronic Code of Federal Regulations, 21 CFR 1308.11 Schedule I. Read 2026-10-22.