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Published on: 10/14/2026

Clove tea benefits: what is supported

Clove tea's most supported benefits come from eugenol and other antioxidant compounds, with the strongest evidence for antimicrobial and oral health effects, mild anti-inflammatory activity, and traditional use for digestive discomfort like gas, nausea, and bloating. Early research also hints at modest support for blood sugar regulation and liver protection, though most of these findings come from lab and animal studies rather than large human trials. Dosage limits, bleeding risk with blood thinners, and cautions during pregnancy are important details to weigh, and there are several factors to consider before relying on clove tea for a specific symptom, so see below to understand more.

If you are reaching for clove tea because something feels off, whether that is persistent stomach pain, mouth discomfort, fatigue, or recurring nausea, it helps to know what you are actually treating before you treat it. Take a free, instant, online symptom check to understand what may be driving your symptoms and what sensible next steps look like.

Last reviewed for medical accuracy: 10/13/2026

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Explanation

Benefits of Clove Tea: What Science Says

Clove tea, made from the dried flower buds of Syzygium aromaticum, has long been used in traditional medicine. Recent research supports many of its reputed health perks. Below, we explore the evidence-based benefits of clove tea, how to prepare it, possible side effects and when to seek professional advice.

What Is Clove Tea?

Clove tea is a simple infusion made by steeping whole or ground clove buds in hot water. Cloves contain active compounds—most notably eugenol—that give the tea its characteristic aroma and flavor as well as its medicinal properties.

Nutritional Profile at a Glance

A typical cup (240 mL) of clove tea provides small amounts of:

  • Manganese: an antioxidant cofactor
  • Vitamin K: supports blood clotting
  • Dietary fiber: from residual clove particles
  • Polyphenols: including flavonoids and phenolic acids

Though not a significant source of calories or macronutrients, the phytochemicals in clove tea drive most of its health benefits.

Key Benefits of Clove Tea

1. Rich Antioxidant Activity

Studies in the Journal of Medicinal Food and Food Chemistry have shown that clove extracts rank among the highest spices for antioxidant capacity. Antioxidants help neutralize free radicals, which in excess can contribute to aging and chronic disease.

  • Clove’s eugenol and flavonoids scavenge reactive oxygen species.
  • Regular intake may support overall cellular health.

2. Anti-Inflammatory Effects

Eugenol exhibits strong anti-inflammatory effects similar to non-steroidal anti-inflammatory drugs (NSAIDs) in lab studies.

  • May help reduce markers of inflammation such as tumor necrosis factor-α (TNF-α) and interleukins.
  • Potential support for mild joint discomfort or occasional muscle soreness.

3. Digestive Support

Traditionally, clove tea has been sipped to calm an upset stomach. Modern research highlights:

  • Stimulating digestive enzymes to aid food breakdown.
  • Reducing gas and bloating by relaxing intestinal smooth muscle.
  • Mild antimicrobial action against H. pylori, a bacterium linked to gastritis and ulcers.

4. Oral Health Benefits

Clove oil is a time-honored remedy for toothache; clove tea may offer gentler support.

  • Eugenol’s antiseptic and analgesic actions can help reduce oral bacteria.
  • May soothe gum inflammation and freshen breath when used as a mild mouth rinse.

5. Antimicrobial Properties

A 2020 review in Evidence-Based Complementary and Alternative Medicine noted that clove extracts inhibit growth of bacteria, fungi and viruses in lab tests.

  • Active against common pathogens such as Escherichia coli, Staphylococcus aureus and certain Candida species.
  • Could complement hygiene practices but shouldn’t replace medical treatment for infections.

6. Blood Sugar Regulation

Preliminary animal studies suggest clove compounds may improve insulin sensitivity and help moderate blood sugar spikes after meals.

  • Clove tea could be a supportive beverage for people with prediabetes, alongside diet and exercise.
  • Human studies are limited; monitor levels carefully if you have diabetes.

7. Respiratory Wellness

Clove’s warming, aromatic vapors can ease mild congestion.

  • Steam from clove tea inhalation may help loosen mucus.
  • Antimicrobial properties could help reduce upper-respiratory pathogens.

How to Prepare Clove Tea

  1. Measure: Use ¼ to ½ teaspoon of whole cloves (3–5 buds) or ½ teaspoon of ground cloves.
  2. Boil: Bring 1 cup (240 mL) of water to a rolling boil.
  3. Steep: Add cloves, cover, and steep for 8–10 minutes.
  4. Strain: Remove buds or strain ground particles.
  5. Flavor (optional): Add honey, lemon or a cinnamon stick to taste.

Enjoy 1–2 cups daily, or as your taste and tolerance allow.

Potential Side Effects and Precautions

Clove tea is generally safe in culinary amounts, but in concentrated form or high intakes:

  • Eugenol Overload: Large doses may cause nausea, vomiting or liver irritation.
  • Allergies: Rare clove allergy can lead to skin rash or respiratory symptoms.
  • Blood Thinning: Eugenol can inhibit platelet aggregation—use caution with anticoagulant medications.
  • Pregnancy & Breastfeeding: Insufficient data on safety of high-dose clove; stick to small culinary doses.
  • Drug Interactions: May interact with blood thinners, diabetes medications and NSAIDs.

If you experience any adverse reactions—such as persistent stomach upset, skin rash or unusual bleeding—stop use and consult a healthcare professional.

When to Seek Medical Advice

Clove tea can support general wellness but isn’t a substitute for medical treatment. If you have:

  • Severe or persistent abdominal pain
  • Unexplained weight loss or blood in stool
  • Signs of infection (high fever, chills)
  • New or worsening joint pain
  • Concerns about your medications or health conditions

…please speak to a doctor. For a free, online symptom check, using the doctor approved Ubie Symptom Checker can help you decide if you need further care.

Summary

Clove tea offers a range of evidence-backed benefits, from antioxidant and anti-inflammatory effects to digestive and oral health support. A daily cup or two—prepared simply with whole or ground cloves—may enhance your well-being when combined with a balanced diet and healthy lifestyle. Be mindful of potential side effects at high doses and talk with your doctor about anything serious or life-threatening.

Enjoy the warm, spicy comfort of clove tea—and let its natural compounds contribute to your overall health.

(References)

  • * Ulanowska M, Olas B. Biological Properties and Prospects for the Application of Eugenol-A Review. Int J Mol Sci. 2021 Apr 1;22(7). doi: 10.3390/ijms22073671. Epub 2021 Apr 1. PMID: 33916044; PMCID: PMC8036490.

  • * Haro-González JN, Castillo-Herrera GA, Martínez-Velázquez M, Espinosa-Andrews H. Clove Essential Oil (Syzygium aromaticum L. Myrtaceae): Extraction, Chemical Composition, Food Applications, and Essential Bioactivity for Human Health. Molecules. 2021 Oct 22;26(21). doi: 10.3390/molecules26216387. Epub 2021 Oct 22. PMID: 34770801; PMCID: PMC8588428.

  • * Marchese A, Barbieri R, Coppo E, Orhan IE, Daglia M, Nabavi SF, Izadi M, Abdollahi M, Nabavi SM, Ajami M. Antimicrobial activity of eugenol and essential oils containing eugenol: A mechanistic viewpoint. Crit Rev Microbiol. 2017 Nov;43(6):668-689. doi: 10.1080/1040841X.2017.1295225. Epub 2017 Mar 27. PMID: 28346030.

  • * Eugenol (Clove Oil). 2012. PMID: 31869191.

  • * Batiha GE, Alkazmi LM, Wasef LG, Beshbishy AM, Nadwa EH, Rashwan EK. Syzygium aromaticum L. (Myrtaceae): Traditional Uses, Bioactive Chemical Constituents, Pharmacological and Toxicological Activities. Biomolecules. 2020 Jan 30;10(2). doi: 10.3390/biom10020202. Epub 2020 Jan 30. PMID: 32019140; PMCID: PMC7072209.

  • * Sandner G, Heckmann M, Weghuber J. Immunomodulatory Activities of Selected Essential Oils. Biomolecules. 2020 Aug 3;10(8). doi: 10.3390/biom10081139. Epub 2020 Aug 3. PMID: 32756359; PMCID: PMC7464830.

  • * Zari AT, Zari TA, Hakeem KR. Anticancer Properties of Eugenol: A Review. Molecules. 2021 Dec 6;26(23). doi: 10.3390/molecules26237407. Epub 2021 Dec 6. PMID: 34885992; PMCID: PMC8659182.

  • * Cortés-Rojas DF, de Souza CR, Oliveira WP. Clove (Syzygium aromaticum): a precious spice. Asian Pac J Trop Biomed. 2014 Feb;4(2):90-6. doi: 10.1016/S2221-1691(14)60215-X. PMID: 25182278; PMCID: PMC3819475.

  • * Plefh ACV, Hoshino LVC, Sato F, Castilha LD, Santos TC, Vital ACP, Matumoto-Pintro PT. Cloves (Syzygium aromaticum) fluid gel on healing of pododermatitis in rabbits. Vet Res Commun. 2021 Dec;45(4):293-304. doi: 10.1007/s11259-021-09810-6. Epub 2021 Jul 5. PMID: 34219191.

  • * Mallmann MP, Oliveira MS. Beta-caryophyllene in psychiatric and neurological diseases: Role of blood-brain barrier. Vitam Horm. 2024;126:125-168. doi: 10.1016/bs.vh.2024.02.004. Epub 2024 May 8. PMID: 39029971.

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