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Cloves are much more than a holiday spice. For centuries, they’ve been a cornerstone of traditional medicine systems worldwide, and modern science is now confirming many of their impressive health benefits. This guide explores the top researched health benefits of cloves, their traditional uses, and most importantly, how to use them safely.
What Makes Cloves So Powerful?
The secret behind cloves’ healing power lies in its rich concentration of bioactive compounds, particularly a substance called eugenol. Clove buds contain 15% to 20% volatile oil, with eugenol making up a significant portion (up to 65-90% of the oil) . This compound is responsible for cloves’ distinctive warm, spicy aroma and many of its health-supporting properties .
Other active compounds found in cloves include flavonoids, tannins, β-caryophyllene, and various antioxidants that work together to provide a wide range of health benefits .
Top Health Benefits of Cloves
1. Powerful Antioxidant and Anti-Inflammatory Support
Cloves are rich in polyphenols, plant compounds that help fight free radicals and reduce oxidative stress in the body . Eugenol, in particular, has demonstrated potent anti-inflammatory properties in cell and animal studies, potentially helping to disrupt inflammatory pathways . Some researchers suggest that clove’s antioxidant and anti-inflammatory effects could even support brain health by reducing neuroinflammation—a factor in neurodegenerative conditions .
2. Supports Oral and Gum Health
One of the most well-known traditional uses of cloves is for oral health. Eugenol has antibacterial properties that can help eliminate bacteria responsible for bad breath, plaque, tartar, and gum disease . Some studies have found that mouthwashes containing clove, along with other herbs like tea tree oil and basil, can reduce bacteria levels in the mouth .
Important caveat: While clove oil has been used for toothache relief, experts caution against applying concentrated clove oil directly to gums as it can cause irritation, burning, or inflammation . For safe use, consider diluted forms or products formulated for oral care.
3. Blood Sugar Management Support
Several studies suggest that clove compounds, particularly eugenol, may help with blood sugar control. In one small study, both pre-diabetic and non-diabetic adults who took daily clove extract for 30 days showed lower blood sugar levels after meals . Researchers believe clove polyphenols may block a liver enzyme involved in glucose processing .
Crucial safety note: While this is promising research, if you have diabetes or are taking insulin or other blood sugar medications, do not start taking clove supplements without talking to your doctor. Combining eugenol with diabetes medications may cause blood sugar levels to drop too low (hypoglycemia), which can be life-threatening .
4. Digestive Comfort and Traditional Uses
In traditional systems like Ayurveda and Traditional Chinese Medicine, cloves have long been valued for digestive health . Clove tea has been used to soothe nausea, reduce gas and bloating, and support overall digestive comfort . In TCM, clove is considered “warm in nature” and is used to “warm the middle” and relieve cold-related digestive discomfort, such as stomach cold vomiting and hiccups .
5. Other Potential Benefits
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