Laurel tea, made from the dried leaves of the bay laurel tree, has a long history in folk medicine for supporting digestion, easing respiratory congestion, and helping manage blood sugar. Modern research backs up several of these traditional uses, with studies showing measurable effects on glucose levels, cholesterol, and inflammation.
Digestive Relief After Meals
One of the most common reasons people reach for laurel tea is to settle an upset stomach. The leaves contain enzymes that help break down proteins, which can ease the digestive process and reduce the bloating, gas, and indigestion that often follow a heavy meal. The essential oils in the leaves, particularly a compound called 1,8-cineole, also have mild antispasmodic properties that can calm the smooth muscles of the digestive tract.
A warm cup after eating is the traditional approach. The combination of warmth and the leaf’s active compounds stimulates digestive activity while soothing discomfort. This is one of the simplest and most immediately noticeable benefits of the tea.
Blood Sugar and Cholesterol Effects
The most striking clinical evidence for laurel tea involves blood sugar. A study published in the Journal of Clinical Biochemistry and Nutrition found that people with type 2 diabetes who consumed bay leaves daily saw their fasting blood sugar drop by 21 to 26% after 30 days. These reductions came on top of the effects of their existing diabetes medications. Researchers identified polyphenols as the likely active compounds responsible for improving insulin function.
The cholesterol picture is also encouraging. A study in healthy volunteers who drank laurel tea daily for 11 days found a significant increase in HDL (“good”) cholesterol, rising from an average of 1.34 to 1.42 pg/mL. LDL cholesterol and triglycerides showed slight decreases, though those changes weren’t large enough to be statistically significant in the study’s timeframe. Together, these shifts point toward a more favorable lipid profile with regular consumption.
If you take diabetes medication, this blood sugar-lowering effect is worth paying attention to. Combining laurel tea with insulin or other glucose-lowering drugs could push your levels too low, so monitoring closely is important.
Anti-Inflammatory Properties
Chronic low-grade inflammation drives many long-term health problems, and laurel leaf extract appears to act on one of the body’s key inflammation switches. In lab and animal studies, the extract suppressed activation of a protein complex called the NLRP3 inflammasome, which is a central driver of inflammatory responses throughout the body. Blocking this complex reduced the release of inflammatory signaling molecules and limited tissue damage.
The compound most responsible for this effect was 1,8-cineole, the same essential oil that dominates the leaf’s chemical profile (making up roughly 41% of the leaf’s essential oil). In a mouse model of acute lung injury, laurel leaf extract reduced the expression of pro-inflammatory molecules in living tissue, not just in a test tube. This anti-inflammatory action helps explain why the tea has traditionally been used for conditions like joint pain and rheumatism.
Respiratory Congestion and Colds
Bay leaves have natural expectorant properties, meaning they help loosen and clear mucus from your airways. When you’re dealing with a cold, flu, or bronchitis, laurel tea can help relieve nasal congestion and make breathing easier. The antibacterial and antiseptic compounds in the leaves also work against some of the bacteria and viruses responsible for respiratory infections.
The high concentration of 1,8-cineole is again the key player here. This is the same compound found in eucalyptus, which is widely used in over-the-counter vapor rubs and cough remedies for exactly this reason. Sipping hot laurel tea delivers it in a gentler form, with the added benefit of steam inhalation while you drink.
Nutritional Profile
Bay leaves pack a surprising amount of nutrition into a small package. One ounce of dried leaves provides roughly 2,000 to 3,000 IU of vitamin A, about 14 to 15 mg of vitamin C, 51 to 53 mg of calcium, and 1 to 1.5 mg of iron. The leaves are also rich in potassium, magnesium, and B vitamins including B6 and B9 (folate).
Beyond vitamins and minerals, the leaves contain a diverse array of plant compounds: flavonoids, tannins, anthocyanins, and phenolic acids that act as antioxidants. These compounds help neutralize free radicals and protect cells from oxidative damage. The antioxidant activity comes primarily from the polar compounds extracted when you steep leaves in hot water, which is why tea is an effective way to access these benefits.
How to Make Laurel Tea
The preparation is straightforward. Add two to three dried bay leaves to a cup of hot water and let them steep for 5 to 10 minutes. If you’re using fresh leaves, use two to three times as many since their compounds are less concentrated than in dried leaves. Strain out the leaves before drinking. The flavor is mild, slightly herbal, and pairs well with a small amount of honey or lemon.
Never eat a whole bay leaf. The leaf cannot be digested and passes through the system intact, where it can become lodged in the throat or puncture the intestinal lining. This applies to cooking as well: always remove whole leaves from soups or stews before serving. Ground bay leaf powder is safe to consume and is sometimes used as a supplement.
Safety Considerations
For most people, laurel tea consumed in normal amounts is safe. A few groups should exercise caution. If you take diabetes medication, the tea’s blood sugar-lowering effect could amplify your medication and cause hypoglycemia. If you’re scheduled for surgery, stop drinking laurel tea at least two weeks beforehand, as compounds in the leaves can slow central nervous system activity and interact with anesthesia.
During pregnancy and breastfeeding, bay leaf in food amounts is fine, but there isn’t enough research to confirm safety at the higher concentrations found in tea consumed as a daily remedy. The antimicrobial compounds in the leaves, while beneficial for fighting infections, are potent enough that moderation is a reasonable approach for anyone drinking the tea regularly.