Autoimmune conditions: Chaga can stimulate parts of the immune system—people with autoimmune diseases should be cautious.Blood thinners: Chaga contains compounds that may affect clotting—avoid large doses if on anticoagulants.Blood sugar meds: May slightly lower glucose—monitor if taking diabetes medication.Pregnancy & breastfeeding: Limited safety data—best avoided unless guided by a professional.Quality matters: Wild-harvested Chaga can accumulate heavy metals from trees and soil—source from reputable suppliers.

Safety note^{[14, 15, 16]}Info

Duke (2002) does not include a dedicated entry for chaga (Inonotus obliquus) in the Handbook of Medicinal Herbs, Second Edition, as this medicinal fungus was not widely documented in Western herbal literature at that time (Duke, 2002).

References

REF-0848, REF-0849, REF-0850, REF-2195, REF-2196, REF-2197, REF-2198, REF-2199, REF-2200, REF-2201, REF-2202, REF-2203, REF-2204

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