Plant Comparison
Turkey tail vs Ashwagandha
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Turkey tail and Ashwagandha: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), cold & flu, …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Turkey tail | Ashwagandha | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 1/10 | Stronger for Turkey tail |
| Cancer (anticancer research) | 9/10 | 7/10 | Stronger for Turkey tail |
| Cold & flu | 5/10 | 1/10 | Stronger for Turkey tail |
| Immune support | 5/10 | 1/10 | Stronger for Turkey tail |
| Inflammation (general) | 5/10 | 1/10 | Stronger for Turkey tail |
| Skin irritation | 5/10 | 1/10 | Stronger for Turkey tail |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
The principal immunomodulating constituents, forming the basis of PSK/PSP extracts.
Protein-bound polysaccharide complex studied extensively as an adjunct immunotherapy.
Minor antioxidant constituents.
Steroidal lactones considered the principal bioactive compounds, responsible for most of the plant's adaptogenic, anti-inflammatory and anticancer research interest.
Minor tropane-type alkaloids contributing to the traditional sedative reputation.
Glycowithanolides linked to adaptogenic and immunomodulatory activity.
Pharmacological Actions
Physical performance / strength improvement
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anticancer action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from antidiabetic action
inferred from anticancer action
inferred from neuroprotective action
inferred from immunomodulator action
inferred from ergogenic action
inferred from anti-inflammatory action
inferred from sedative action
inferred from neuroprotective action
inferred from antidiabetic action
inferred from ergogenic action
Safety, Cautions & Contraindications
Generally very safe and well tolerated. Rare cases of digestive upset or allergic reaction. No significant known drug interactions at normal doses. The PSK pharmaceutical form is used safely alongside standard cancer treatments. Suitable for most adults.
Generally well-tolerated in clinical trials at doses up to 600 mg/day for up to 12 weeks. Common side effects may include mild drowsiness, gastrointestinal upset, and diarrhea at higher doses. Contraindicated during pregnancy due to potential abortifacient effects. May interact with sedatives, immunosuppressants, thyroid medications, and blood sugar medications. People with autoimmune diseases, hyperthyroidism, or scheduled for surgery should consult healthcare providers before use. May cause allergic reactions in sensitive individuals. Not recommended for children without medical supervision.
Duke (2002) classifies ashwagandha activities primarily at the experimental level (score 1), with adaptogenic, sedative, immunostimulant, and anti-inflammatory actions demonstrated in animal and in vitro models. Root preparations are used at 2–3 g powdered root three times daily, or 150–300 mg of standardized extract. Importantly, the plant has documented abortifacient and antifertility properties in animal studies, and its use should be avoided during pregnancy. It may potentiate the effects of barbiturates and sedatives (Duke, 2002).
External Ids
Botanical Description
Bracket fungus (not a true plant) forming thin, tough, fan-shaped, overlapping shelves on dead or decaying hardwood, with a velvety, concentrically zoned upper surface in bands of brown, tan, cream, blue-grey and rust, and a white, minutely pored underside.
Erect, branching perennial shrub with soft, downy, oval to lance-shaped leaves. Small, inconspicuous, greenish-yellow bell-shaped flowers are borne in the leaf axils, followed by a small orange-red berry enclosed in a papery, lantern-like calyx, giving rise to the name 'winter cherry'.[5]
Habitat
Grows on dead, dying or fallen hardwood logs, stumps and branches in woodlands worldwide, including Europe, Asia and North America.
Native to the drier regions of India, the Middle East and parts of Africa; cultivated in warm, semi-arid climates on well-drained soils, notably in central and western India.[5]
Harvesting
Fresh brackets are harvested by cutting from the wood; for medicinal use the tough fruiting body is typically dried and then decocted (simmered) for a long time, or extracted, since the beneficial polysaccharides are not well-extracted by simple infusion.
The root is dug in winter from plants around one year old, when withanolide content is highest, then cleaned, cut and dried; the leaves are picked through the growing season.[5]
Traditional Uses
Turkey tail has a long history of use in traditional Chinese medicine (as yun zhi) and is one of the most researched medicinal mushrooms, with standardized polysaccharide-K (PSK) and polysaccharopeptide (PSP) extracts used clinically in Japan and China alongside conventional cancer treatment to support immune function.[11, 12, 13]
Ashwagandha root is one of the most important rasayana (rejuvenative) tonics of Ayurvedic medicine, traditionally used to build strength and vitality, support healthy stress response, and promote restful sleep; this traditional adaptogenic reputation is now supported by clinical trials of standardised root extract for stress, sleep and physical performance.[1, 5]
Preparations
Dried fruiting body simmered in water for an extended period (often 1-2 hours) to extract the beta-glucan polysaccharides, then strained.
Standardized polysaccharide-K (PSK) or polysaccharopeptide (PSP) extract, the pharmaceutical-grade forms used in clinical research.
Dosage
Clinical research on PSK commonly uses around 3 g daily in divided doses. Educational reference only, not a prescription.
Clinical trials for stress and sleep commonly use around 300-600 mg of standardised root extract daily, in divided doses, over several weeks. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
Drug Class Interactions
Not documented
Pairings
Not documented
Both ashwagandha and valerian are calming, sleep-promoting herbs; using them together may add to drowsiness and sedation, so take care especially before driving or when using other sedatives.[1, 23]
References & Sources
- Pilkington, K., Wieland, L.S., Teng, L., Jin, X.Y. and others (2022) 'Coriolus (Trametes) versicolor mushroom to reduce adverse effects from chemotherapy or radiotherapy in people with colorectal cancer', Cochrane Database of Systematic Reviews, 11(11), pp. CD012053. doi:10.1002/14651858.CD012053.pub2 Meta-analysis / review
https://doi.org/10.1002/14651858.CD012053.pub2 - Habtemariam, S (2020) 'Trametes versicolor (Synn. Coriolus versicolor) Polysaccharides in Cancer Therapy: Targets and Efficacy', Biomedicines, 8(5), pp. 135. doi:10.3390/biomedicines8050135 Meta-analysis / review
https://doi.org/10.3390/biomedicines8050135 - Fritz, H., Kennedy, D.A., Ishii, M., Fergusson, D. and others (2015) 'Polysaccharide K and Coriolus versicolor extracts for lung cancer: a systematic review', Integrative Cancer Therapies, 14(3), pp. 201-211. doi:10.1177/1534735415572883 Meta-analysis / review
https://doi.org/10.1177/1534735415572883 - Tsang, K.W., Lam, C.L., Yan, C., Mak, J.C. and others (2003) 'Coriolus versicolor polysaccharide peptide slows progression of advanced non-small cell lung cancer', Respiratory Medicine, 97(6), pp. 618-624. doi:10.1053/rmed.2003.1490 Randomized trial
https://doi.org/10.1053/rmed.2003.1490 - Ng, T.B (1998) 'A review of research on the protein-bound polysaccharide (polysaccharopeptide, PSP) from the mushroom Coriolus versicolor (Basidiomycetes: Polyporaceae)', General Pharmacology, 30(1), pp. 1-4. doi:10.1016/s0306-3623(97)00076-1 Meta-analysis / review
https://doi.org/10.1016/s0306-3623(97)00076-1 - Kowalczewska, M., Piotrowski, J., Jedrzejewski, T. and Kozak, W (2016) 'Polysaccharide peptides from Coriolus versicolor exert differential immunomodulatory effects on blood lymphocytes and breast cancer cell line MCF-7 in vitro', Immunology Letters, 174, pp. 37-44. doi:10.1016/j.imlet.2016.04.010 Preclinical
https://doi.org/10.1016/j.imlet.2016.04.010 - Jedrzejewski, T., Piotrowski, J., Kowalczewska, M., Wrotek, S. and Kozak, W (2015) 'Polysaccharide peptide from Coriolus versicolor induces interleukin 6-related extension of endotoxin fever in rats', International Journal of Hyperthermia, 31(6), pp. 626-634. doi:10.3109/02656736.2015.1046953 Preclinical
https://doi.org/10.3109/02656736.2015.1046953 - Scarpari, M., Reverberi, M., Parroni, A., Scala, V. and others (2017) 'Tramesan, a novel polysaccharide from Trametes versicolor. Structural characterization and biological effects', PLoS One, 12(8), pp. e0171412. doi:10.1371/journal.pone.0171412 Preclinical
https://doi.org/10.1371/journal.pone.0171412 - Lysakowska, P., Sobota, A. and Wirkijowska, A (2023) 'Medicinal Mushrooms: Their Bioactive Components, Nutritional Value and Application in Functional Food Production - A Review', Molecules, 28(14), pp. 5393. doi:10.3390/molecules28145393 Meta-analysis / review
https://doi.org/10.3390/molecules28145393 - Wang, K.F., Sui, K.Y., Guo, C. and Liu, C.Z (2017) 'Quorum sensing molecule-farnesol increased the production and biological activities of extracellular polysaccharide from Trametes versicolor', International Journal of Biological Macromolecules, 104(Pt A), pp. 377-383. doi:10.1016/j.ijbiomac.2017.06.053 Preclinical
https://doi.org/10.1016/j.ijbiomac.2017.06.053 - Chu, K.K., Ho, S.S. and Chow, A.H (2002) 'Coriolus versicolor: a medicinal mushroom with promising immunotherapeutic values', 42(9), pp. 976--984. doi:10.1177/0091270002042009004 Traditional / reference
https://doi.org/10.1177/0091270002042009004 - Standish, L.J., Wenner, C.A., Sweet, E.S., Bridge, C., Nelson, A., Martzen, M., Novack, J. and Torkelson, C (2008) 'Trametes versicolor mushroom immune therapy in breast cancer', 6(3), pp. 122--128. Traditional / reference
https://scholar.google.com/scholar?q=Trametes%20versicolor%20mushroom%20immune%20therapy%20in%20breast%20cancer - Wasser, S.P (2011) 'Current findings, future trends, and unsolved problems in studies of medicinal mushrooms', 89(5), pp. 1323--1332. doi:10.1007/s00253-010-3067-4 Randomized trial
https://doi.org/10.1007/s00253-010-3067-4 - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Macalester College, Katharine Ordway Natural History Study Area 'Turkey Tail Fungus (Trametes versicolor)'. Available at: https://www.macalester.edu/ordway/biodiversity/inventory/turkeytailfungus/ Traditional / reference
https://www.macalester.edu/ordway/biodiversity/inventory/turkeytailfungus/ - Missouri Department of Conservation 'False Turkey Tail (Stereum ostrea)'. Available at: https://mdc.mo.gov/discover-nature/field-guide/false-turkey-tail Traditional / reference
https://mdc.mo.gov/discover-nature/field-guide/false-turkey-tail - Kuo, Michael 'Stereum ostrea (False Turkey Tail)'. Available at: https://www.mushroomexpert.com/stereum_ostrea.html Traditional / reference
https://www.mushroomexpert.com/stereum_ostrea.html
- Cheah, K.L., Norhayati, M.N., Husniati Yaacob, L. and Abdul Rahman, R (2021) 'Effect of Ashwagandha (Withania somnifera) extract on sleep: a systematic review and meta-analysis', PLoS One, 16(9), pp. e0257843. doi:10.1371/journal.pone.0257843 Meta-analysis / review
https://doi.org/10.1371/journal.pone.0257843 - Speers, A.B., Cabey, K.A., Soumyanath, A. and Wright, K.M (2021) 'Effects of Withania somnifera (ashwagandha) on stress and the stress-related neuropsychiatric disorders anxiety, depression, and insomnia', Current Neuropharmacology, 19(9), pp. 1468-1495. doi:10.2174/1570159X19666210712151556 Meta-analysis / review
https://doi.org/10.2174/1570159X19666210712151556 - Arumugam, V., Vijayakumar, V., Balakrishnan, A., B Bhandari, R., Boopalan, D., Ponnurangam, R., Sankaralingam Thirupathy, V. and Kuppusamy, M (2024) 'Effects of Ashwagandha (Withania somnifera) on stress and anxiety: a systematic review and meta-analysis', Explore, 20(6), pp. 103062. doi:10.1016/j.explore.2024.103062 Meta-analysis / review
https://doi.org/10.1016/j.explore.2024.103062 - Lopresti, A.L., Smith, S.J., Malvi, H. and Kodgule, R (2019) 'An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: a randomized, double-blind, placebo-controlled study', Medicine, 98(37), pp. e17186. doi:10.1097/MD.0000000000017186 Randomized trial
https://doi.org/10.1097/MD.0000000000017186 - Paul, S., Chakraborty, S., Anand, U., Dey, S., Nandy, S., Ghorai, M., Saha, S.C., Patil, M.T., Kandimalla, R. and Prockow, J (2021) 'Withania somnifera (L.) Dunal (Ashwagandha): a comprehensive review on ethnopharmacology, pharmacotherapeutics, biomedicinal and toxicological aspects', Biomedicine & Pharmacotherapy, 143, pp. 112175. doi:10.1016/j.biopha.2021.112175 Meta-analysis / review
https://doi.org/10.1016/j.biopha.2021.112175 - Dar, N.J., Hamid, A. and Ahmad, M (2015) 'Pharmacologic overview of Withania somnifera, the Indian ginseng', Cellular and Molecular Life Sciences, 72(23), pp. 4445-4460. doi:10.1007/s00018-015-2012-1 Meta-analysis / review
https://doi.org/10.1007/s00018-015-2012-1 - Pandit, S., Srivastav, A.K., Sur, T.K., Chaudhuri, S., Wang, Y. and Biswas, T.K (2024) 'Effects of Withania somnifera extract in chronically stressed adults: a randomized controlled trial', Nutrients, 16(9), pp. 1293. doi:10.3390/nu16091293 Randomized trial
https://doi.org/10.3390/nu16091293 - Wankhede, S., Langade, D., Joshi, K., Sinha, S.R. and Bhattacharyya, S (2015) 'Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial', Journal of the International Society of Sports Nutrition, 12, pp. 43. doi:10.1186/s12970-015-0104-9 Randomized trial
https://doi.org/10.1186/s12970-015-0104-9 - Choudhary, D., Bhattacharyya, S. and Bose, S (2017) 'Efficacy and safety of ashwagandha (Withania somnifera (L.) Dunal) root extract in improving memory and cognitive functions', Journal of Dietary Supplements, 14(6), pp. 599-612. doi:10.1080/19390211.2017.1284970 Randomized trial
https://doi.org/10.1080/19390211.2017.1284970 - Tiwari, S., Gupta, S.K. and Pathak, A.K (2021) 'A double-blind, randomized, placebo-controlled trial on the effect of Ashwagandha (Withania somnifera dunal.) root extract in improving cardiorespiratory endurance and recovery in healthy athletic adults', Journal of Ethnopharmacology, 272, pp. 113929. doi:10.1016/j.jep.2021.113929 Randomized trial
https://doi.org/10.1016/j.jep.2021.113929 - Singh, N., Yadav, S.S., Rao, A.S., Nandal, A., Kumar, S., Ganaie, S.A. and Narasihman, B (2020) 'Review on anticancerous therapeutic potential of Withania somnifera (L.) Dunal', Journal of Ethnopharmacology, 270, pp. 113704. doi:10.1016/j.jep.2020.113704 Meta-analysis / review
https://doi.org/10.1016/j.jep.2020.113704 - Bonilla DA, Moreno Y, Gho C, et al. Effects of ashwagandha (2021) ';6(1):20', 6(1). Traditional / reference
https://scholar.google.com/scholar?q=%3B6%281%29%3A20. - Chandrasekhar K, Kapoor J, Anishetty S. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med. 2012;34 (2012) ';34(3):255-262', 34(3). Traditional / reference
https://scholar.google.com/scholar?q=%3B34%283%29%3A255-262. - Downer S, Berkowitz SA, Harlan TS, et al. Ashwagandha (2023) ';10:1043034'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC10147008/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC10147008/ - Lopresti AL, Drummond PD, Smith SJ. A randomized, double-blind, placebo-controlled, crossover study examining the hormonal and vitality effects of ashwagandha (2019) ';13(2):1557988319835985', 13(2). Traditional / reference
https://scholar.google.com/scholar?q=%3B13%282%29%3A1557988319835985. - Lopresti AL, Smith SJ, Malvi H, Kodgule R. An investigation into the stress-relieving and pharmacological actions of an ashwagandha (2019) ';98(37):e17186', 98(37). Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC6979308/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC6979308/ - National Institutes of Health Office of Dietary Supplements. Ashwagandha: Is it helpful for stress, anxiety, or sleep? Health Professional Fact Sheet. 2024. https://ods.od.nih.gov/factsheets/Ashwagandha-HealthProfessional/ (2024) 'https://ods.od.nih.gov/factsheets/Ashwagandha-HealthProfessional/'. Available at: https://ods.od.nih.gov/factsheets/Ashwagandha-HealthProfessional/ Traditional / reference
https://ods.od.nih.gov/factsheets/Ashwagandha-HealthProfessional/ - Salve J, Pate S, Debnath K, Langade D. Adaptogenic and anxiolytic effects of ashwagandha root extract in healthy adults: A double-blind, randomized, placebo-controlled clinical study. Cureus. 2019;11 (2019) ';11(12):e6466', 11(12). Traditional / reference
https://scholar.google.com/scholar?q=%3B11%2812%29%3Ae6466. - Singh N, Bhalla M, de Jager P, Gilca M. An overview on ashwagandha: A Rasayana (2011) ';8(5 Suppl):208-213'. Traditional / reference
https://scholar.google.com/scholar?q=%3B8%285%20Suppl%29%3A208-213. - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Sharma, A.K., Basu, I. and Singh, S (2018) 'Efficacy and Safety of Ashwagandha Root Extract in Subclinical Hypothyroid Patients: A Double-Blind, Randomized Placebo-Controlled Trial', Journal of Alternative and Complementary Medicine, 24(3), pp. 243-248. doi:10.1089/acm.2017.0183 Randomized trial
https://doi.org/10.1089/acm.2017.0183 - Gannon, J.M., Forrest, P.E. and Roy Chengappa, K.N (2014) 'Subtle changes in thyroid indices during a placebo-controlled study of an extract of Withania somnifera in persons with bipolar disorder', Journal of Ayurveda and Integrative Medicine, 5(4), pp. 241-245. doi:10.4103/0975-9476.146566 Clinical study
https://doi.org/10.4103/0975-9476.146566 - Caus, M.N., Lupoae, M. and Chitescu, C.L (2026) 'Efficacy and Safety of Herbal Supplements with Anxiolytic, Antidepressant, and Sedative Action: A Review of Clinical Data and Toxicological Risks', Pharmaceuticals, 19(3), pp. 399. doi:10.3390/ph19030399 Meta-analysis / review
https://doi.org/10.3390/ph19030399 - Cheah, K.L., Norhayati, M.N., Husniati Yaacob, L. and Abdul Rahman, R (2021) 'Effect of Ashwagandha (Withania somnifera) extract on sleep: a systematic review and meta-analysis', PLoS One, 16(9), pp. e0257843. doi:10.1371/journal.pone.0257843 Meta-analysis / review
https://doi.org/10.1371/journal.pone.0257843 - Makhlouf, E.A., AlamElDeen, Y.K., El-Shiekh, R.A. and Okba, M.M (2024) 'Unveilling the antidiabetic potential of ashwagandha (Withania somnifera L.) and its withanolides - a review', Natural Product Research, 39(24), pp. 7203-7218. doi:10.1080/14786419.2024.2439009 Meta-analysis / review
https://doi.org/10.1080/14786419.2024.2439009
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.