Chewing Cloves Thinking They “Fix Everything”? Here’s What Really Happens in Your Body Before You Use Them Daily
Cloves (often called clove spice or clove buds) are prized worldwide in both cooking and traditional remedies. Their strong aroma and bold flavor make them a favorite in teas, desserts, and many home “natural health” preparations. Because they’re plant-based, it’s easy to assume cloves are always harmless.
But “natural” doesn’t automatically mean risk-free.
Cloves contain a highly active compound called eugenol. It’s responsible for many of cloves’ potential benefits—but it can also trigger unwanted effects when used too often, in large amounts, or in very concentrated forms (especially clove essential oil).
Excessive clove use—whether through heavy culinary intake, overly strong clove tea, supplements, or essential oil—may irritate the body and can also interact with certain medical conditions and medications.
In this guide, you’ll learn 9 lesser-known dangers and side effects of cloves, why they can happen, and how to use cloves more safely.
Why Cloves Can Cause Side Effects
Much of clove’s potency comes from eugenol, a phenolic compound that makes up roughly 70% to 90% of clove essential oil. Eugenol has been studied for antimicrobial, anti-inflammatory, and antioxidant activity.
However, at higher concentrations, eugenol may behave like a strong irritant and potentially affect multiple body systems, including the digestive tract, liver, blood clotting mechanisms, and the nervous system. That’s why moderation matters.
9 Potential Dangers and Side Effects of Cloves
1. Stomach Irritation and Digestive Discomfort
Eating too many cloves—or drinking very concentrated clove tea—can irritate the stomach lining. Common symptoms include:
- Heartburn
- Nausea
- Abdominal pain or cramping
- Vomiting or diarrhea
If you have gastritis or acid reflux (GERD), these effects may appear faster and feel more intense.
2. Liver Strain (Especially with Concentrated Forms)
Your liver helps process eugenol. When intake becomes excessive—particularly from clove essential oil—it may increase liver workload and, in serious situations, contribute to liver damage.
This risk is much higher with essential oils than with normal culinary use.
3. Increased Risk of Bleeding
Eugenol may reduce blood clotting ability in some cases. That can increase the likelihood of:
- Easy bruising
- Longer bleeding time from cuts
This concern is especially important for people taking blood thinners (anticoagulants/antiplatelet drugs) or those preparing for surgery.
4. Blood Sugar May Drop Too Low
Some research suggests cloves may help lower blood glucose. While that might sound beneficial, it can become a problem if you have diabetes and already use glucose-lowering medication—potentially contributing to hypoglycemia.
Possible signs include:
- Dizziness
- Weakness
- Shakiness or trembling
If you monitor blood sugar, pay attention to changes when using cloves regularly.
5. Mouth and Gum Irritation from Frequent Chewing
Many people chew cloves for temporary toothache relief. While it may numb discomfort briefly, repeated use can lead to:
- Burning or stinging sensations
- Numbness
- Gum irritation
- Small sores or irritation of the oral lining
If tooth pain persists, it’s safer to treat the cause with a dental professional rather than relying on repeated clove use.
6. Allergic Reactions (Rare but Possible)
Although uncommon, clove or eugenol allergies can occur. Symptoms may include:
- Itching
- Skin redness or rash
- Swelling of the lips or mouth
- Contact dermatitis (especially with oils)
Stop use and seek medical advice if you notice allergy-like symptoms.
7. Extra Caution During Pregnancy
There isn’t enough high-quality evidence to confirm that medicinal doses of cloves are safe during pregnancy. As a precaution, high-dose clove supplements and clove essential oil are not recommended for pregnant individuals.
Small amounts used in cooking are generally considered a more reasonable, lower-risk choice.
8. Potential Interactions with Medications
Cloves may interact with medications, including:
- Blood thinners (anticoagulants/antiplatelet drugs)
- Diabetes medications
- Certain drugs processed by the liver
If you take prescription medications or manage a chronic condition, consult a qualified clinician before using cloves daily or in concentrated forms.
9. Clove Essential Oil Toxicity
Clove essential oil is extremely concentrated. Even small swallowed amounts can cause severe reactions, such as:
- Seizures
- Breathing difficulty
- Liver or kidney injury
Children are especially vulnerable. Clove essential oil should never be ingested undiluted, and it should be kept out of reach of children.
How to Use Cloves Safely
To enjoy clove’s flavor and potential benefits with fewer risks, follow these practical guidelines:
- Use small culinary amounts in food
- Avoid swallowing clove essential oil
- Start with a small amount to assess tolerance
- Don’t use high doses continuously for long periods
- For clove tea, use 1–2 cloves per cup of water
- If you have medical conditions or take medication, speak with a healthcare professional before regular use
Quick Safety Summary
- Generally safe: small amounts in cooking
- Use caution: very strong teas or supplements
- Avoid: ingesting pure clove essential oil
Conclusion
Cloves are a powerful spice with a distinctive aroma and potential health-supporting properties. But their strength comes with a need for care and moderation, largely due to eugenol and the risks of concentrated use.
When used sensibly, cloves can fit into a healthy routine. The key is avoiding extremes, understanding possible side effects, and choosing safer forms and amounts.
Frequently Asked Questions (FAQ)
Is it safe to consume cloves every day?
For most people, small culinary amounts are typically safe. Problems are more likely with high doses, very concentrated preparations, or when there are medication interactions or digestive sensitivities.
Does clove oil help with toothache?
When properly diluted, it may provide temporary relief. However, it must be used cautiously and should not be swallowed. If pain continues, see a dentist to address the underlying issue.
Can cloves interfere with diabetes medication?
Yes. Cloves may enhance glucose-lowering effects, increasing the risk of low blood sugar. People with diabetes should monitor glucose levels and consult a healthcare professional before regular use.
Disclaimer: This content is for informational purposes only and does not replace professional medical advice. Always consult a qualified healthcare professional before using herbs, supplements, or essential oils—especially if you have a medical condition, are pregnant, or take medications.
