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Cassia Cinnamon Coumarin Content

The amount of coumarin in cassia cinnamon and its potential health effects

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Jan 25, 2026
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What is the coumarin content difference between cassia and Ceylon cinnamon and how does it affect liver risk?

contains orders of magnitude more coumarin than Ceylon (true) cinnamon—typical cassia powders show coumarin in the low thousands of mg/kg while Ceylon samples are near or below detection limits—creati...

Feb 4, 2026

How much coumarin is in a teaspoon of common store‑brand cassia cinnamon and how that compares to the EFSA TDI?

A single teaspoon of typical store‑brand contains on the order of about 7–18 milligrams of coumarin, a range supported by measurements of cassia ground cinnamon in retail markets . The Tolerable Daily...