Excessive consumption of licorice tea - a popular herbal beverage - may have health risks such as high blood pressure and reduced potassium levels, researchers claim.
According to a case study, published in CMAJ (Canadian Medical Association Journal), consuming tea made from licorice root resulted in severely elevated blood pressure in an 84-year-old man.
"Excessive amounts of some herbal products can have harmful side effects," said Jean-Pierre Falet from the McGill University in Canada.