Calamus / Vacha (Safety Profile)

Sweet flag (calamus) flower spike among long green leaves

Sweet flag is an aromatic marsh plant with a long history in Ayurveda, Chinese medicine and Indigenous North American medicine. It’s also one of the few herbs banned from food in the US, because its oil contains beta-asarone, which caused cancer in rodent studies.

Members-only guide

The full guide, with how to use it and the safety notes, is in the Remedies Vault.

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