Is internal consumption of clove oil safe?

Published: October 09, 2025
Updated: October 09, 2025

The internal use of clove oil requires considerable precautionary measures due to its possible toxic effects. Although health benefits result, injurious effects can occur through its internal use, such as upon the mucous membranes and liver. Be very careful to follow the proper use, dilution, and duration of use. All health service advice should be sought before using clove oil for internal use, especially if you have an existing disease condition.

Dosage Limits

  • Maximum 2 drops per 8oz liquid
  • Never exceed 14 consecutive days
  • Minimum 30-day break between cycles

Health Conditions

  • Absolute avoidance with liver disease
  • Contraindicated with blood thinners
  • Prohibited during pregnancy/nursing

Preparation Methods

  • Mix thoroughly in warm liquids
  • Use glass containers not plastic
  • Consume immediately after mixing
Toxicity Risk Comparison
Usage MethodUndiluted InternalRisk Level
Extreme
Safe DurationNever safe
Usage MethodDiluted InternalRisk Level
Moderate
Safe Duration14 days maximum
Usage MethodTopical ApplicationRisk Level
Low
Safe DurationContinuous with breaks
Based on NIH toxicity reports

Destruction of the mucous membrane occurs rapidly in the presence of undiluted oil. With eugenol of a strength greater than one per cent, there is marked erosion of the mucous membrane of the digestive tract. Symptoms are severe burning pain, nausea, and vomiting. In all cases, dilution with milk, honey, or water should be made. Such dilution provides significant protection, as there is significantly less contact with the sensitive tissue.

Liver strain results from cumulative exposure to stress-inducing substances. Metabolites of eugenol overwhelm the detoxification pathways available during chronic exposure. Routine blood tests can provide information about changes in enzyme levels during chronic use. I recommend that patients monitor their energy level and appetite changes, as these are signs of an early state of toxicity.

Interactions with medications can cause significant harm. For example, clove oil enhances the blood-thinning effects, which can increase the risk of bleeding. Clove oil also decreases the effects of diabetes medications. When taken in conjunction with SSRIs (selective serotonin reuptake inhibitors), clove oil has the potential to induce serotonin syndrome. Always inform all of your healthcare providers about any supplements you use.

In the event of an emergency related to accidental ingestion, please drink milk immediately, as it will help coat the stomach. You can also contact poison control for guidance (specific to the situation). Never induce vomiting without consulting a medical professional. Always keep bottles of clove oil clearly labeled and out of the reach of children.

Read the full article: Clove Oil Benefits and Practical Uses Revealed

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