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In excess, this spice may cause liver damage.

Retry Correct Incorrect Cinnamon contains a compound called coumarin that may harm the liver when consumed in excess. According to research in the Scientific World Journal, you shouldn’t eat more than one teaspoon of cinnamon per day.

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Annette Riedl/picture alliance via Getty Images

Annette Riedl/picture alliance via Getty Images

In excess, this spice may cause liver damage.

• Cinnamon
• Cayenne pepper
• Nutmeg
• Bay leaves