Turkey Tail Mushroom

The World's Most Researched Medicinal Mushroom.

Turkey Tail (Trametes versicolor) is one of the most scientifically studied mushrooms in the world, with decades of clinical research supporting its powerful role in immune system modulation and overall wellness.

Key Benefits

• Immune System Support — Turkey Tail contains two extensively studied polysaccharide compounds — PSK (Polysaccharide-K) and PSP (Polysaccharide-Peptide) — that have been shown in clinical research to activate and modulate key immune cells, including T-cells, NK (natural killer) cells, and macrophages.
• Clinically Researched — PSK has been used as an adjunct immune support therapy in Japan for decades and has been the subject of numerous peer-reviewed clinical trials. A landmark NIH-funded study (published in ISRN Oncology, 2012) found that Turkey Tail mycelium positively influenced immune cell populations in study participants.
• Gut Microbiome Support — Research published in the Journal of Applied Microbiology found that Turkey Tail acts as a prebiotic, supporting the growth of beneficial gut bacteria including Lactobacillus and Bifidobacterium — key players in immune and digestive health.
• Antioxidant Activity — Rich in phenolic compounds and flavonoids, Turkey Tail helps neutralize oxidative stress that can compromise immune function.

Why Host Defense?

Host Defense grows its Turkey Tail using Certified Organic mycelium on organic brown rice, produced in the USA. Their cultivation process preserves the full spectrum of active constituents — including beta-glucans, PSK precursors, and other immune-active compounds — in every batch.

How to Use

Take as directed on the label. Consult your healthcare provider before use if you are pregnant, nursing, or taking medications.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.