InstalabMycotoxins
Should you take a Mycotoxins test?
This test is most useful if any of these apply to you.
11 Biomarkers Included
- Aflatoxin M1Get an early read on whether mold toxins from your food are quietly reaching your body.
- Chaetoglobosin AGet an early read on whether Chaetomium mold is getting into your body, even without visible water damage.
- CitrininSee whether mold toxins from your food are getting into your body, where they could harm your kidneys over time.
- Enniatin BGet an early read on whether grain-based mold toxins are showing up in your body, even when standard food safety panels miss them.
- GliotoxinSee whether mold exposure is leaving a measurable toxic footprint in your body.
- Mycophenolic AcidDetect a potent immune-suppressing mold toxin that routine health screening completely misses.
- Ochratoxin AGet an early read on whether mold toxins in your food are building up in your body.
- Roridin EA toxic compound found in water-damaged buildings and contaminated foods, known to disrupt protein synthesis and cause widespread organ damage.
- SterigmatocystinGet an early read on whether mold contamination in your food or environment is reaching your body.
- Verrucarin AA toxic compound found in water-damaged environments and contaminated grains, known for its ability to disrupt protein synthesis and harm multiple organ systems.
- ZearalenoneSee whether a hormone-mimicking mold toxin from grains is making it into your body.
About Mycotoxins
Standard blood panels check your liver, kidneys, blood cells, and cholesterol. None of them tells you whether toxic compounds from mold are accumulating in your body. Mycotoxins are chemicals produced by certain molds that can enter your system through contaminated food, indoor air, or skin contact. They are not measured on any routine lab panel, which means exposure can go undetected for years.
This panel measures 11 different mycotoxins in urine, each produced by a different family of mold. Together, they distinguish between food-borne exposure and indoor environmental exposure, and they cover the toxins most commonly linked to organ stress in human exposure studies. Because this is an emerging area of clinical testing without standardized interpretation guidelines, results should be read as a screening signal rather than a definitive diagnosis.
What This Panel Reveals
The 11 mycotoxins on this panel fall into two broad categories: those you are most likely absorbing through contaminated food, and those that point toward indoor mold exposure from water-damaged buildings. Some overlap both categories. The value of running the full panel is that the pattern of results, not any single toxin, helps identify your exposure source.
Food-Borne Exposure Markers
Several toxins on this panel are most commonly found in grains, nuts, coffee, wine, and dairy. Aflatoxin M1 is a breakdown product of aflatoxin B1, one of the most studied cancer-causing substances found in nature. The International Agency for Research on Cancer (IARC) classifies aflatoxins as a Group 1 carcinogen (confirmed to cause cancer in humans), the highest category, based on strong evidence linking chronic dietary aflatoxin exposure to liver cancer in populations across sub-Saharan Africa and Southeast Asia.
Ochratoxin A (OTA) is produced by Aspergillus and Penicillium molds and contaminates cereals, dried fruits, coffee, and wine. It has been linked to kidney damage in human populations. Population studies in the Balkans investigated chronic OTA exposure as a possible contributor to Balkan endemic nephropathy, a regional kidney disease, though the role of other environmental factors in this condition remains debated. IARC classifies OTA as Group 2B (possibly carcinogenic to humans). Zearalenone, produced by Fusarium molds in corn and wheat, mimics the hormone estrogen and has been associated with early puberty in exposed children in some population-level observations, though the human evidence remains limited.
Indoor Mold Exposure Markers
A second group of toxins on this panel is strongly associated with mold growing inside water-damaged buildings. Roridin E and verrucarin A are trichothecene toxins produced by Stachybotrys chartarum, commonly known as black mold. Gliotoxin is produced by Aspergillus fumigatus, a mold species found in damp indoor environments as well as decaying organic matter. In hospital settings, gliotoxin has been studied as a detection marker for serious Aspergillus infections in patients with weakened immune systems.
Chaetoglobosin A comes from Chaetomium species, another common mold in water-damaged drywall and building materials. Mycophenolic acid is produced by Penicillium molds found indoors. The same compound is also used as a prescription drug that suppresses the immune system, so a positive result in someone not taking that medication points to environmental mold exposure.
How to Read Your Results Together
No single mycotoxin result tells the full story. The pattern across all 11 toxins is what matters. Because standardized clinical reference ranges for urinary mycotoxins are still evolving, interpret results as exposure signals rather than diagnostic endpoints.
| Pattern | Likely Meaning | Suggested Next Step |
|---|---|---|
| Aflatoxin M1, OTA, and zearalenone elevated; indoor markers low | Dietary exposure from contaminated food is the primary source | Review grain, nut, coffee, and dairy sources; consider switching to lower-risk suppliers |
| Gliotoxin, roridin E, verrucarin A, or chaetoglobosin A elevated; food markers low | Indoor mold exposure from a water-damaged building is likely | Arrange a professional indoor environmental inspection, such as an ERMI (Environmental Relative Moldiness Index) or HERTSMI-2 test |
| Multiple markers elevated across both categories | Combined food and environmental exposure, or heavy single-source exposure | Address both dietary sources and indoor air quality; consult an environmental medicine specialist |
| All results below detection limits | No measurable mycotoxin burden at the time of collection | Reassuring snapshot, though a single negative result does not rule out intermittent or past exposure |
When Results Can Be Misleading
Urine mycotoxin levels reflect what your body is excreting at the time of collection, not what is stored in your tissues. A person with significant past exposure may test low if the acute exposure has stopped and the toxins have already cleared. Conversely, eating a single heavily contaminated meal the day before testing could produce a transient spike in food-borne mycotoxins that does not reflect chronic exposure.
Hydration status also affects urine concentration. A very dilute sample may undercount mycotoxin levels, while a concentrated sample may overcount them. Some labs adjust results for creatinine (a waste product that reflects urine concentration), but not all do. If your results seem inconsistent with your symptoms or exposure history, repeating the test under more controlled conditions is reasonable.
Mycophenolic acid deserves special attention. If you take the prescription drug mycophenolate (brand names CellCept or Myfortic), your result will be elevated from the medication, not from mold. Always disclose this medication before interpreting results.
Tracking Over Time
A single mycotoxin panel is a snapshot. Serial testing is where the real value appears. If your initial results show elevated levels and you take action, whether by remediating a water-damaged building, changing food sources, or using binders recommended by a practitioner, a follow-up test 3 to 6 months later shows whether those interventions reduced your body's toxin burden.
Tracking also helps distinguish chronic low-level exposure from a one-time spike. Two or three results over 6 to 12 months paint a much clearer picture than any single draw. For people living or working in buildings with known water damage, periodic monitoring can confirm whether remediation was successful.
What to Do with Your Results
If all results are below detection limits, no immediate action is needed. If one or more mycotoxins are elevated, the first step is identifying the source. Food-borne mycotoxin elevations call for a review of your diet, especially grains, nuts, dried fruits, coffee, and dairy products stored in warm, humid conditions. Indoor mold markers call for a professional environmental inspection of your home or workplace.
Elevated results do not by themselves confirm illness. They confirm exposure. To evaluate whether that exposure is affecting your health, pairing this panel with liver function tests, kidney function markers, and inflammatory markers provides a more complete picture. An environmental medicine specialist or a practitioner experienced in mold-related illness can help interpret results alongside your symptoms.
- If indoor mold markers are elevated: arrange a professional mold inspection and consider an ERMI (Environmental Relative Moldiness Index) test of your living space.
- If food-borne markers are elevated: audit grain, nut, and dairy sources for mold contamination risk and consider sourcing from lower-humidity regions.
- If multiple categories are elevated: consult an environmental medicine specialist for a full workup including liver enzymes, kidney function, and immune markers.
- Retest in 3 to 6 months after any intervention to confirm levels are declining.