Medicinal Mushroom Supplements Investigation

Deceptive Trade Practice, Consumer Protection, Product Defect
by Bruno Ortega

Migliaccio & Rathod LLP is investigating medicinal mushroom supplements, including Host Defense Lion’s Mane and NOW Foods Turkey Tail, amid allegations that products marketed as “100% mushroom” consist largely of grain-based mycelium.

Reported Issues

Consumers and labs report:

  • Microscopy showing mycelium grown on grain, not fruiting bodies
  • Beta-glucan assays inconsistent with advertised potency
  • Species-specific testing identifying substitute fungi
  • Premium pricing despite inferior inputs
  • Marketing emphasizing brain and immune benefits

Batch testing can implicate thousands of units at once.

Why Consumers Should Be Concerned

Consumers pay a premium for fruiting-body extracts. Potential claims include:

  • False advertising and mislabeling
  • Unjust enrichment / price-premium damages
  • State consumer-protection violations
  • Express-warranty breaches regarding composition

Uniform labeling simplifies class certification.

Signs You May Be Affected

  • Purchased Lion’s Mane or Turkey Tail supplements
  • Label claims “100% mushroom” or fruiting body
  • Product lacks expected potency or effects
  • Purchased within the last two years

If you experienced these issues, fill out the form below or contact [email protected] or (202) 470-3520.

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    When did you last purchase this product or service (month and year)? Do you have proof of purchase (receipt, email confirmation, transaction on your bank statement, etc.)?

    Please briefly describe the issue with the product or service and when it occurred.


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