FDA issues warning on licorice consumption

Black licorice (File/ThinkStock)

Licorice, especially black licorice, could be more of a trick than a treat on Halloween.

The Food and Drug Administration issued a warning about it Monday.

Experts say people over 40, who eat two ounces of the candy a day for two weeks, could end up with an irregular heartbeat and other troubles.

It's because black licorice contains a compound called Glycyrrhizin. That can cause potassium levels in the body to fall which could lead to abnormal heart rhythms as well as high blood pressure.

The agency also says the candy licorice can interact with some medications, herbs, and dietary supplements.

They advise you to speak with your health care provider about possible interactions.

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