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Surprising Sweet That Can Raise Blood Pressure
4 Mar
Summary
- Popular black licorice can unexpectedly elevate blood pressure.
- Glycyrrhizin in licorice affects potassium and sodium levels.
- Stopping licorice consumption usually reverses negative effects.

A common sweet, black licorice, has been identified by a cardiologist as a surprising cause of high blood pressure. Dr. Nicole Harkin highlighted that consuming large quantities of black licorice can lead to elevated blood pressure in some individuals. One patient experienced blood pressure issues directly linked to a significant increase in black licorice intake, which resolved upon discontinuation.
This effect is attributed to glycyrrhizin, a compound present in licorice root. Glycyrrhizin, significantly sweeter than sugar, can interfere with the body's sodium and potassium balance, essential for regulating fluid. Excessive intake can also result in fluid retention and muscle weakness.
While moderate consumption is generally safe, the British Heart Foundation advises caution, particularly for individuals over 40 with a history of cardiovascular disease or high blood pressure. The good news is that these adverse effects are typically temporary and reversible once licorice consumption stops, though consulting a doctor is recommended.