JaanYar
Chapter 1 of 21

Cinnamon

The Essentials

Two whole cinnamon quills resting on a wooden board, one turned end-on to show the bark rolled in tight layers
True cinnamon rolls into many thin layers; thick single-curl bark is usually cassia.

Here's the thing: Ceylon cinnamon is the safer bark for daily use. It holds far less coumarin (a natural plant compound that can strain the liver in large amounts) than Cassia. Across pooled type 2 diabetes trials, the effects on fasting glucose, HbA1c and post-meal blood sugar are modest but real.

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It's also one of the oldest Persian warming digestives. A stick simmered in tea after a heavy dinner does most of what tradition asked of it.

For daily use, treat a quarter to one teaspoon of powdered Ceylon cinnamon as a reasonable everyday ceiling in food. Supplemental doses need a floor, a ceiling and a look at the coumarin math.