2026 Update: What the data says
This 2026 version distinguishes between traditional uses, plausible cosmetic benefits, and actually supported results. Available data often remain limited or refer to extracts and formulations that differ from the products sold.
Precautions: Licorice can increase blood pressure and interact with medications. People with hypertension, pregnant women, or those undergoing treatment should seek professional advice.
Licorice and Blood Pressure: How to Avoid Risks
Licorice, known for its sweet taste and presence in a variety of products, is a common food in many cultures. However, excessive consumption can lead to health risks, including blood pressure problems.
In this article, we will explore aspects of licorice, its uses, and the risks associated with its consumption. Discover how to enjoy licorice occasionally and in moderation without compromising your health.
1. Licorice: A Plant with Varied Uses
Glycyrrhizin, a predominant component of licorice, is responsible for its sweet taste. This substance is used in the manufacture of various products, such as candies, chewing gums, snacks, baked goods, ice creams, and even alcoholic beverages. It is also present in sodas and syrups, as well as in dietary supplements.
2. The Risks of Excessive Consumption
A study conducted over the period from 2012 to 2021 by the Agency in conjunction with poison control centers revealed that 64 people were poisoned following the consumption of beverages or foods based on licorice. In 42% of cases, these people presented with severe symptoms, including high blood pressure and heart problems due to an excessive level of potassium in the blood. In some cases, it even threatened their vital prognosis, and one death was reported in a person suffering from severe liver disease.
3. The Effects of Medications
It is important to note that certain medications can aggravate the effects of licorice. Some diuretics lead to a loss of potassium through urine, which can be exacerbated by glycyrrhizin. This can have serious consequences for your health, especially if you take medication regularly.
4. The Importance of Moderation
It can be difficult for the consumer to determine if their consumption of licorice is excessive. Products containing licorice must indicate its presence in the ingredients list, but the maximum recommended daily amount is not always specified. To minimize risks, it is recommended not to exceed 10 milligrams of glycyrrhizin per day. Also, avoid combining multiple sources of intake, whether through food, medication, or tobacco products.
5. Licorice: More Than Just a Plant
Licorice, commercially known as Glycyrrhiza glabra, is used in various fields, including phytotherapy, the tobacco industry, cosmetics, food, and pharmacy. Glycyrrhizin, one of its main components, has varied uses and is metabolized in the liver. It is essential to understand the versatility of this plant to better evaluate potential risks.
6. Licorice Throughout the Ages
Licorice is one of the oldest and most popular medicinal plants in the world. Used in phytotherapy and traditional medicine since over 4000 B.C., it offers an impressive range of pharmacological properties. These include anti-inflammatory, antioxidant, antiviral, immunoregulatory, and hepatoprotective effects, among others. Licorice is also used for applications such as thirst quenchers and for treating digestive symptoms.
7. Varied Uses of Licorice
Beyond its applications in medicine and cosmetics, licorice is used in various industrial fields. In the tobacco industry, it is used to flavor tobacco and prevent it from drying out. It is also present in fire extinguishers as a foaming agent, in insulation materials, paper pulp, compost, livestock feed, and even as a source of energy.
8. Licorice in Food
In the food industry, licorice is used for its sweet flavor, which is reminiscent of anise. Glycyrrhizin, with a sweetening power 33 to 200 times higher than sucrose, is used as a sweetener, softening agent, and flavor enhancer. It is thermostable, which makes it suitable for many food applications. However, its characteristic taste and brownish color can limit its use as a pure sweetening agent.
9. Toxicity Risk Factors
Several factors can influence the toxicity of glycyrrhizin. The dose, duration of exposure, and individual sensitivity play an essential role. The variability in the intestinal absorption of glycyrrhizin is a key factor in inter-individual variation. Furthermore, the plasma clearance of its metabolites is affected in patients with chronic liver disease.
10. Interactions and Co-exposures
Medications and co-exposures can alter the clinical presentation of licorice toxicity. Antihypertensive drugs, for example, can influence adverse effects. It is also essential to take into account the diet, particularly the amount of sodium chloride ingested, to evaluate sodium and water retention.
Overall, liquorice consumption should be approached with caution. It is essential to prioritize moderate and occasional consumption, avoiding continuous exposure to this substance.
Conclusion
Liquorice is a common food, but excessive consumption can have serious health consequences, including blood pressure problems. It is crucial to be aware of the potential risks and to follow moderation recommendations. Everyone reacts differently to liquorice, so it is wise to consult a healthcare professional for specific advice on consuming this product.
FAQ on Liquorice and Blood Pressure
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Is licorice dangerous for everyone? No, reactions to licorice vary from person to person, but excessive consumption can pose risks for many individuals.
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What are the symptoms of licorice poisoning? Symptoms can include high blood pressure, heart problems, and hypokalemia. Licorice and Blood Pressure: How to Avoid the Risks.
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How can I consume licorice safely? It is recommended to maintain moderate and occasional consumption of licorice, while avoiding the multiplication of intake sources.
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Are there alternatives to licorice for people concerned about their blood pressure? Yes, many other sweetener and flavoring options are available for those looking to avoid the risks associated with licorice. Licorice and Blood Pressure: How to Avoid the Risks.
