Cinnamon

An excessive dose may cause nausea and vomiting.
(Large amount of pure essential oil when ingested,
may cause severe gastro-intestinal irritation
with violent vomiting, and may cause
kidney irritation and even damage),
care with pregnancy and nursing mothers.

Avoid during pregnancy
due to this herb's emmenagogue effects.

Safe in cooking.
Avoid with nursing mothers as this herb may cause
allergic hypersensitivity due to its cinnamein content.