Although it is most commonly known for its use in candies, beverages, and foods, licorice is also used as a
dietary supplement for treating various medical conditions. It should be noted that many "licorice" candies and other products contain little or no licorice root; instead, they contain anise flavoring (which tastes much like licorice), but they do not have any of the effects of real licorice.
Licorice has many different effects on the human body, some desirable and some not.
One component in particular, known as glycyrrhizin, is responsible for many of the negative effects of licorice, such as
high blood pressure and low blood potassium.
On the other hand, licorice may work for treating ulcers or other similar problems, such as
heartburn or indigestion, by blocking the breakdown of prostaglandins, substances that help protect the stomach. This effect does not seem to be related to the glycyrrhizin component.
Licorice may also affect certain hormones and hormone receptors. It can have estrogen-like properties in some situations and anti-estrogen properties in other situations (this is possibly related to the dose of licorice). Licorice also decreases testosterone production in men.
In addition, licorice contains flavonoids (plant compounds), which may have many beneficial effects, such as
lowering cholesterol.
Early research suggests that licorice may be effective at treating a number of different health conditions
(see Does Licorice Work?).
Dosing Information for Licorice
It is difficult to recommend a licorice "dosage," as research is still in its early stages and a safe and effective dose has not yet been established
(see Licorice Dosage for more information).
As innocuous as it seems, licorice can actually cause some very serious side effects, such as:
(Click Licorice Side Effects to learn more, including other potentially serious side effects that you should report immediately to your healthcare provider.)
Drug Interactions With Licorice
Safety Issues With Licorice
Licorice use can be quite dangerous for some people. Therefore, you should talk with your healthcare provider prior to taking it if you have:
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about any other medications you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Is Licorice Safe? for more information, including any available warnings and precautions.)
What If I Take an Overdose of Licorice?
An overdose of licorice can cause serious problems. An overdose may be possible if you take too much licorice all at once or if you consume too much licorice on a daily basis. If you think you may have taken too much licorice, seek immediate medical attention.
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