3 min read
Bay leaf extract – contraindications and adverse effects
Lena Bauer
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Diets Premium Expert • 23.03.2026
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Scientifically reviewed by a clinical dietitian:
This article has been peer-reviewed for adherence to IŻŻ, WHO, and PTGiP clinical nutritional standards.
| Diets Premium Expert Lena Bauer | min read 3 min | Scientifically reviewed by a clinical dietitian 23.03.2026 |
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Key Takeaways
Almost everyone has encountered bay leaves, as they are commonly used in cooking and are one of the most popular spices. However, few individuals are aware that these leaves, also known as bay, are also utilized in folk medicine as a remedy for numerous ailments.
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Extract from laurel leaves
Both the laurel leaves and the extract derived from them demonstrate beneficial effects for various health conditions. Aqueous and alcoholic extracts from laurel leaves enhance blood circulation, strengthen heart muscle contractions, and improve blood flow to the limbs and brain. Additionally, they protect liver cells, promote bile production, exhibit anti-inflammatory and muscle-relaxing properties, and have a calming effect on the central nervous system. By increasing urine output and perspiration, they aid in the elimination of harmful substances. Laurel improves digestion and nutrient absorption. The extract from laurel leaves inhibits the growth of harmful microorganisms. When applied to the skin, it enhances skin tone, dries it, and acts as an antiseptic. When massaged into the scalp, it prevents hair loss and dullness. Laurel leaves also stimulate appetite and aid digestion.
Restrictions on the use of bay leaf infusions
It is essential to recognize that medicinal preparations derived from bay leaves exhibit significant physiological activity, necessitating careful consideration when using them. Pregnant women should refrain from consuming bay leaf infusions, as their effects on the body have not been adequately investigated, and there is insufficient evidence regarding their safety for expectant mothers [3]. The same precaution applies to breastfeeding women, young children, and the elderly. Due to the lack of comprehensive studies confirming the safety of bay leaves, these groups should avoid their consumption. Individuals with pancreatic conditions may experience gastrointestinal discomfort after ingesting bay leaves [4]. Given the presence of multiple bioactive compounds, both bay leaves and infusions prepared from them should not be used by individuals with allergies to any of their constituents.
Potential adverse effects of bay leaf extract consumption
Excessive intake of bay leaf extract may result in lowered blood pressure and narcotic effects [3]. High doses can trigger allergic reactions, and single administrations may be toxic. However, it is crucial to emphasize that this primarily applies to concentrated extracts, where the concentration of active compounds is significantly higher than in natural extracts [4]. Excessive amounts can also lead to gastrointestinal disturbances and bleeding. Therefore, adhering to recommended dosages is essential, and safe limits must not be exceeded. In cases of external application, such as compresses, the extract can be used without restrictions [5], unless rare instances of contact allergies occur due to substances present in bay leaves [6]. The active compounds in bay leaves can exert potent effects. The extract is utilized as a supplement in treating various health conditions, but not everyone should consume it. Proper dosing is also critical. A substance that is beneficial in moderate amounts may become harmful in excessive quantities.
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Lena Bauer
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Diets Premium team expert. Specializes in nutrition plans, strength sports, and training plans.
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