Properties and Benefits of Bay Leaves

Properties and Benefits of Bay Leaves

Worshiped as the tree of the Sun God, the bay laurel tree (Laurus nobilis) was highly appreciated both as a culinary spice and as a medicinal herb during Roman and Greek antiquity. Bay leaves were used to crown the heads of great poets and philosophers or winners of ancient Greek game tournaments, hence the expressions to rest on one’s laurels, to look to one’s laurels or to assume the laurel. Although the symbolism has been lost, bay leaves preserve their outstanding nutrient profile which makes a great addition to any diet.

Rich in essential oils, the leaves offer relief for a variety of medical conditions from digestive discomfort and muscle aches to respiratory problems. Bay leaves are an excellent source of vitamins A and C as well as iron, manganese, calcium, copper and zinc. Their nutritional profile recommends them for eye and bone health, inflammatory conditions and anemia prevention. They boast impressive antioxidant properties and contribute to good immunity, among other benefits.

Bay laurel leaves benefits

What do bay leaves look like? As you can see from the image above, bay leaves are deep green, shiny, elongated, pointy leaves. You might not expect it, but they are also quite stiff for fresh leaves. What do bay leaves taste like? Fresh bay leaves have a mild leafy fragrance and a bitter taste. Dried ones are significantly more fragrant (the essential  oils having had time to set), but slightly sweeter in taste. Their fragrance is reminiscent of thyme or oregano with which they share several essential oils such as eugenol. However, dried bay leaves are even more stiff and abrasive than fresh ones so it might be best to remove them from stews, soups, sauces or other vegetable or meat dishes prior to serving them.

Why remove bay leaves from food prior to serving it? Are they toxic if eaten? Seen that we use them to flavor our food, they are not toxic at all. However, as mentioned above, bay leaves are quite abrasive, rough. Swallowing either a piece or a smaller leaf whole might either bruise the esophagus, stomach or intestines or perforate the intestines, a severe health issue which requires immediate medical attention.

Bay leaves may also get stuck in the throat and cause the person having eaten them to choke. In order to avoid unnecessary trips to the emergency room, it is recommended to take the leaves out of the food prior to serving it. Also, you might want to use bay leaves whole when cooking; this way they are easier to spot and remove. But what are bay leaves actually good for?

Bay leaf

What are the benefits?

See below the list of the top 10 properties and health benefits of bay leaves:
1) Antifungal and antiseptic properties. Bay leaves are rich in essential oils: cineol (50%), alpha-pinene, beta-pinene, myrcene, limonene, linalool, methyl chavicol, neral, alpha-terpineol, geranyl acetate and eugenol. Research suggests that these natural aromatic oils show excellent antifungal and antiseptic properties. Eucalyptol especially is a potent antifungal agent, hence its addition to multiple mouthwash products. Eugenol is shown to destroy Listeria monocytogenes, a bacterium known to cause meningitis in newborn babies. Add to this the high zinc content (33%) of the leaves and you get great immune system support.

2) Analgesic and anti-inflammatory effect. Myrcene (also found in lemon grass) and eugenol (also found in cloves, cinnamon and nutmeg) boast great analgesic and anti-inflammatory properties, hence their extensive use in stress reduction therapies and dentistry. Find out the benefits of your favorite herbs and spices on the herbs and spices page.

3) Anticancer properties. Eugenol extracted from bay leaves has shown excellent anticancer activity, destroying several types of colon cancer cells. Limonene was shown to be efficient against certain types of brain cancer cells. Lauroside, a compound extracted from bay leaves, has been shown to inhibit the proliferation of skin cancer cells. Bay leaves are also rich in potent antioxidants such as vitamin C, copper and manganese, which scavenge for free radicals, preventing them from damaging cells and DNA.

4) Stress relief. Linalool and myrcene, also found in hemp, were shown to have mild sedative effects thanks to which they provide stress relief. While eating food flavored with bay leaves might not relieve your stress, drinking lemon balm, lemon grass or verbena tea might. However, regular bay leaf oil massages will help improve circulation and induce a pleasant state of calm. You can use it for massaging your temples and relieve headache pain.

Nutritional Facts Bay leaves

5) Digestive relief. Traditional medicine recommends bay leaves for relieving flatulence (stomach gas), treating colic and soothing ulcer pain and heartburn. Personally, I find lemon balm, dandelion and nettle far better choices for relieving stomach pain associated with acid reflux and heartburn, indigestion, gastritis and ulcer.

6) Pain relief. Bay leaf oil boasts excellent anti-inflammatory properties and can thus be used to relieve muscle and arthritis joint pain. However, consumption alone may not provide sufficient relief. Applying poultices or rubbing the essential oil on affected areas might provide more relief.

7) Respiratory problems. Traditional medical practices recommend drinking bail leaf tea to reduce cold and flu symptoms and help improve more severe respiratory problems such as bronchitis. Being a potent anti-inflammatory, antibacterial and antiviral agent (good vitamin C content), bay leaves represent an excellent natural treatment for bacterial and viral infections of the respiratory tract. However, consulting a doctor is mandatory.

8) Stimulate immunity. Bay leaves are a rich source of vitamins A and C as well as zinc, three nutrients of great importance for a strong, healthy immune system. Vitamin A (206%) ensures the health of mucous membranes found at the level of the eyes, nose, mouth, throat, lungs and digestive tract, directly exposed to bacteria and viruses. If healthy, these mucous membranes do not permit viruses and bacteria to penetrate them and breach our immune defense. Vitamin C (77.5%) is probably the most potent antibacterial and antiviral agent ever discovered, strengthening our immune system and supporting its functions.

9) Incredible mineral content. Being rich in calcium (83%), bay leaves promote strong bones and teeth by preventing bone loss and supporting bone development. Iron (537%) is excellent against anemia. Copper (46%) and manganese (355%) help prevent premature hair graying, iris discoloration and support thyroid hormone production.

10) Beautiful hair and skin. Bay leaf oil is an excellent anti-inflammatory and skin emollient. It can be used for both dry skin and dry scalp. Moreover, due to its strong antibacterial properties, it is said to help with cuts, rashes and insect bites. Also, it makes a great tonic for dry, dull hair, restoring shine and strength. Traditionally, bay leaf oil was used to treat dandruff, combat hair loss and help remove head lice. Leaves were boiled in water (1 part leaves to 4 parts water) and left to act for about 3 hours. Alternatively, bay leaf oil was applied directly on the scalp and left for at least 1-2 hours, then rinsed. The procedure was repeated until all lice and their eggs were removed.


Overall, bay leaves boast an impressive nutritional profile and have both external and internal uses. Regular consumption is believed to provide antioxidant, anticancer and antibacterial protection, stimulate immunity, fertility and help improve rheumatism and arthritis pain. However, too much of anything can do more harm than good, so remember to limit your consumption to small amounts and do not eat the whole leaves. Pregnant women are often advised to avoid consuming laurel on a regular basis because of the the possibility of it causing a miscarriage.

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2 thoughts on “Properties and Benefits of Bay Leaves”

    • Hello, Sandy. There is a promising study on the use of bay leaf tea for diabetes. Basically, 30 people with type 2 diabetes were divided into 3 groups and each group was given 1, 2 and respectively 3 g of finely ground bay leaves in capsule form. Intake was split into 2 dosages, one after breakfast and one after dinner. The diabetic patients continued to take their usual diabetes medication. The study followed the subjects for 40 days, 30 days with bay leaves capsules and another 10 days without. Results showed a significant decrease in blood glucose levels as well as total cholesterol, LDL cholesterol and triglyceride levels, with an increase in HDL (good) cholesterol values.

      So bay leaves appear to be good for type 2 diabetes as they hold blood-sugar lowering effects.
      Bay leaf tea should have at least similar properties because the active compounds responsible for the blood sugar lowering benefits in type 2 diabetes are the aromatic essential oils which can be released into the tea during brewing.

      However, there is need for more research, particularly for type 1 diabetics, since this study was conducted on type 2 diabetics not on insulin. There are concerns the active compounds in the plant leaves may interact with some medication, especially sedatives and pain-relievers, but also potentially alter the effects of insulin therapy, which is essential for type 1 diabetes management. As type 1 diabetics are reliant on insulin and bay leaves and tea impact insulin metabolism through their blood sugar lowering effects, I’d say it’s better to ask your doctor if it’s safe for you and, if it is and you do have the tea, start with small amounts and monitor your blood sugar in the meantime for changes from the tea.

      As for bay leaf oil for pain relief, it is usually used externally, as a massage oil and known to elicit absence of pain to a certain extent. Usually only small amounts are needed, of the likes of a few drops applied onto the affected area and massaged into the skin. It’s a good idea to start off with small amounts, once or twice a day and see if you experience any side effects such as irritation of the skin, itching or others. If the pain is too intense, then it’s better to see your doctor for a stronger treatment.

      Hope this helps, Sandy, and wishing you lots of health!
      Read study for more information: Bay Leaves Improve Glucose and Lipid Profile of People with Type 2 Diabetes (authors: Alam Khan, Goher Zaman, and Richard A. Anderson).

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