Hi, Itdood...is this just coming out? I've known about the connection since I first heard it back in the 90's. It can wreck havoc with the heart rhythm and one other connection could be with some of the ingredients it is found with in many of the herbal teas on the market. So many triggers out there....it really pays to read the labels. Thanks for posting this!
It is strange that this is making headlines now. Maybe the relationship to Halloween? Anyhow, for cardiac patients, it has been standard to warn them of the connection because of glycyrrhizin's tendency to cause you to dump your potassium, lousing up your electrolyte balance. Hearts do not like electrolyte imbalances.
It should be noted that we are talking about consuming fairly large quantities of black licorice, though.
I think this is known (that licorice reduced K+) which may provoke arrhythmias but the best known effect is the increase in blood pressure. I read an article recently from the norwegian journal of medicine that one patient developed a blood pressure of 210/130 from eating 200g licorice each day, with dangerously low K+.
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