Clove tea, while generally considered safe when consumed in moderation, can cause several side effects, particularly when taken in excess or by sensitive individuals[1][3][5]. Potential side effects include:
- Upset stomach and digestive issues: Excessive consumption may cause gastrointestinal discomfort such as nausea, bloating, abdominal pain, heartburn, or diarrhea, especially in those with sensitive stomachs[1][7][8].
- Skin irritation and allergic reactions: Some people may experience skin irritation, itching, hives, or even severe allergic reactions like swelling of the face or throat and difficulty breathing. Reactions can occur either from drinking the tea or from coming into contact with clove oil[1][3][5][7][8].
- Liver toxicity: Clove contains eugenol, and in high doses, this compound can damage the liver. Prolonged or excessive intake may lead to liver problems, especially in those with pre-existing liver conditions or those taking medications metabolized by the liver[1][3][5].
- Blood sugar complications: Clove tea may lower blood sugar levels, which can be risky for people with diabetes or those at risk of hypoglycemia[5][7][8]. Monitor your blood sugar closely if consuming clove tea while on diabetes medications.
- Blood-thinning effects and increased bleeding risk: Clove and its active component eugenol can increase the effect of blood-thinning medications, raising the risk of excessive bleeding, especially before or after surgery or in those with bleeding disorders[5][7][8].
- Other possible side effects: Rarely, clove tea may cause symptoms like dizziness, oral irritation, sore gums, or changes in sexual function[3].
- Pregnancy and breastfeeding: While small culinary amounts are considered safe, medicinal doses of clove tea should be avoided due to insufficient data on safety during pregnancy and breastfeeding[2].
Always consult with a healthcare professional before incorporating clove tea into your diet, especially if you have a history of allergies, liver issues, diabetes, or are taking medications that could interact with clove[1][5][7][8].
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