I am not a fan of black licorice only the red ones, but if you are stop eating them because the Food and Drug Administration issued a warning on Monday about possible dangerous side effects of the old-fashioned favorite.For people 40 years or older, consuming 2 ounces of black licorice a day for at least two weeks could result in arrhythmia, or an irregular heart rhythm, according to the FDA.
Black licorice contains glycyrrhizin, which is the sweetening compound derived from licorice root, this could lower the body’s potassium level, which causes some people to experience abnormal heart rhythms, high blood pressure, swelling, lethargy and even congestive heart failure.
The FDA suggests against eating large amounts of black licorice at one time, no matter what your age. Black licorice could interact with some medications and supplements