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Can I take Chaga and Shiitake together?

Drug interaction guide

Both chaga and shiitake mushrooms can thin the blood and lower blood sugar levels. Taking them together might increase the risk of bruising, bleeding, or your blood sugar dropping too low (hypoglycaemia).

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Why this happens

Both mushrooms contain compounds that can slow down blood clotting (antiplatelet effects) and improve how the body handles insulin, leading to an additive effect when combined.

What you should do

It is generally safe to eat these as part of a normal diet. However, if you are taking concentrated supplements, monitor your blood sugar levels closely (if diabetic) and watch for signs of easy bruising or bleeding. Consult your doctor before combining these supplements if you are scheduled for surgery or are taking blood-thinning medications like warfarin.

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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.

  • 24 Jan 2026 | Originally published
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