Cloves contain eugenol and other compounds studied for antioxidant, antimicrobial, digestive, and pain-relieving effects. Learn what research really says about this aromatic spice.
That familiar warm spice found in chai, cookies, desserts, and savory dishes may be small, but cloves contain some remarkably interesting natural compounds.
One of the best-known is eugenol, an aromatic compound that has been studied for its antioxidant, antimicrobial, and anti-inflammatory properties. This is why cloves have attracted attention in research involving oral health, digestion, inflammation, and other areas.
But there is an important distinction between promising laboratory research and proven health effects in humans. Simply chewing two cloves every day has not been established as a way to unlock a specific number of guaranteed health benefits.
1. Cloves Are Rich in Antioxidant Compounds
Cloves contain eugenol and other plant compounds with antioxidant activity. Antioxidants help protect cells from oxidative stress caused by reactive molecules.
Including spices such as cloves as part of a varied diet can contribute useful plant compounds to your overall dietary pattern.
2. Eugenol Has Been Studied for Pain Relief
Eugenol has traditionally been associated with soothing tooth discomfort, which is one reason clove oil has a long history of use in dental preparations.
Research has investigated eugenol’s analgesic and anti-inflammatory properties, although concentrated clove oil should not be swallowed or applied casually to the mouth because it can irritate tissues and may be harmful in excessive amounts.
3. Cloves May Have Antimicrobial Activity
Laboratory studies have found that compounds in cloves can act against certain microorganisms.
This doesn’t mean that chewing cloves can treat an infection. However, their antimicrobial properties help explain why clove-derived compounds have attracted scientific interest.
4. They May Support Digestion
Cloves have traditionally been used in various cultures as a digestive spice.
Their aromatic compounds may influence digestive processes, but evidence isn’t strong enough to claim that eating a particular number of cloves will cure indigestion, bloating, or other digestive disorders.
5. Cloves Contain Several Plant Nutrients
Although you normally consume cloves in relatively small quantities, they contain naturally occurring compounds including manganese and various polyphenols.
Using them as a spice can be an easy way to add flavor without relying heavily on sugar or salt.
6. They Have Anti-Inflammatory Potential
Eugenol and other compounds found in cloves have demonstrated anti-inflammatory activity in laboratory and experimental research.
However, this should not be interpreted as proof that eating cloves treats inflammatory diseases. Human studies are still important for determining how meaningful these effects are at normal dietary amounts.
7. Cloves May Support Oral Hygiene
Clove has a long history in traditional oral care, particularly because of eugenol’s antimicrobial and soothing properties.
Nevertheless, clove is not a replacement for brushing, flossing, fluoride toothpaste, or professional dental care.
8. They Can Add Flavor Without Much Sugar
This benefit is simple but practical. Ground or whole cloves can add a strong, naturally sweet-smelling flavor to tea, oatmeal, baked goods, fruit, and savory dishes.
That can help make nutritious foods more enjoyable without needing large amounts of added sugar.
9. Cloves May Help Protect Food From Microbial Growth
The antimicrobial properties of clove compounds have also been investigated in food science.
Clove extracts and essential oils can inhibit certain microorganisms under experimental conditions, although culinary use shouldn’t be considered a food-preservation method by itself.
10. They Are Being Studied for Metabolic Effects
Experimental research has explored whether compounds in cloves could influence glucose metabolism and other metabolic processes.
These findings are interesting, but they don’t establish cloves as a treatment for diabetes or as a substitute for prescribed medication.
11. They Contain Concentrated Bioactive Compounds
Perhaps the most interesting thing about cloves is how chemically concentrated this tiny spice is.
Because cloves contain potent compounds such as eugenol, more isn’t necessarily better. Culinary quantities are very different from concentrated extracts or essential oils.
What About Chewing Two Cloves a Day?
There is no well-established medical rule that everyone should chew exactly two cloves daily.
If you enjoy cloves and tolerate them well, using a small amount as part of your normal diet is generally a reasonable way to enjoy the spice. You can add whole cloves to tea, use ground cloves in cooking, or incorporate them into baked recipes.
However, avoid treating cloves as a cure-all.
A Word of Caution
Clove essential oil is much more concentrated than the spice used in cooking. Swallowing concentrated clove oil can be dangerous, particularly in large amounts.
People taking medications that affect blood clotting, people with certain medical conditions, children, and pregnant individuals should be particularly cautious with medicinal amounts of cloves or concentrated clove products and should ask a healthcare professional before using them therapeutically.
The Bottom Line
Cloves are more than just a fragrant ingredient in chai and cookies. Eugenol and other compounds in cloves have demonstrated antioxidant, antimicrobial, anti-inflammatory, and potentially analgesic properties in scientific research.
But the strongest claims circulating online—such as chewing exactly two cloves every day to obtain 11 guaranteed health benefits—go beyond what current human evidence can establish.
Enjoy cloves as a flavorful spice, but think of them as one small part of a healthy diet rather than a miracle remedy.