Can I take Shiitake and Turkey tail together?
Drug interaction guide
Originally published 24 Jan 2026
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There are no known harmful interactions between shiitake and turkey tail mushrooms. Both are medicinal fungi that are often taken together to support the immune system.
Why this happens
Both mushrooms contain bioactive compounds called beta-glucans. These work in a similar way to support immune function without interfering with how the body processes the other.
What you should do
It is generally safe to take these together. However, as with any supplement, you should start with a small dose to ensure you do not have an individual sensitivity or digestive upset. Always inform your doctor about any supplements you are taking, especially if you are scheduled for surgery or have an autoimmune condition.
Important precautions
Bleeding disorders or surgery
These supplements may slow blood clotting and increase the risk of bleeding. You must stop taking these at least 2 weeks before any scheduled surgery. Use with caution if you are taking blood-thinning medications like warfarin or aspirin.
Diabetes
These supplements can lower blood sugar levels. If you are taking insulin or other diabetes medications, monitor your blood sugar closely as your dose may need adjustment to prevent hypoglycaemia (dangerously low blood sugar).
Auto-immune conditions (e.g., multiple sclerosis, lupus, rheumatoid arthritis)
These supplements can increase immune system activity, which may worsen the symptoms of autoimmune diseases. Avoid use if you have these conditions.
Shiitake dermatitis
Eating raw or undercooked shiitake can cause a severe, itchy skin rash (flagellate dermatitis) that looks like whip marks. Ensure mushrooms are thoroughly cooked.
Food and drink warnings
Alcohol
It is best to avoid or strictly limit alcohol when taking medicinal mushrooms. Both alcohol and certain compounds in these mushrooms are processed by the liver; combining them may increase the strain on your liver or alter how the supplements are metabolised.
General Food Intake
These medicinal mushrooms contain complex polysaccharides (beta-glucans). For the best absorption, it is often recommended to take them on an empty stomach, at least 30 minutes before a meal, or with a small amount of Vitamin C (such as a small glass of orange juice) which may help the body absorb the active compounds.
Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Article history
The information on this page is written and peer reviewed by qualified clinicians.
Article also available in English, German, Spanish, French, Italian, Portuguese, Hindi, Hebrew, Arabic, and Swedish.
24 Jan 2026 | Originally published

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