Extracts of turkey tail mushroom (Trametes versicolor) and its constituent PSK are used with conventional cancer treatment to improve survival and reduce risk of recurrence. The constituent PSP shows some benefit for pain, appetite, and percentage of body fat.
Turkey tail mushroom at a glance
Extracts of turkey tail mushroom and its constituents PSK and PSP are widely available without prescription in capsule, liquid tincture and powdered form. Turkey tail mushroom has been used in traditional Chinese medicine for many years. A formulation called PSK or Krestin™ has been studied and used extensively in Japan for its effects on immune function and also as an adjuvanttreatment applied after initial treatment for cancer, especially to suppress secondary tumor formation cancer treatment.
The greatest benefit for cancer survival and lower risk of recurrence is when turkey tail mushroom or PSK is used in addition to conventional treatment such as chemo/radiotherapy. Use is also linked to better markers of immune function, including after conventional treatment. Some evidence shows less pain and better appetite and levels of body fat with PSP use.
CancerChoices ratings for turkey tail mushroom
We rate turkey tail mushroom on seven attributes, with 0 the lowest rating and 5 the highest. We rate the strength of the evidence supporting the use of turkey tail mushroom for a medical benefit, such as improving treatment outcomes or managing side effects.
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