A Japanese Doctor Recommends Drinking Clove Tea at Night: What’s Really Behind the Claim
A cup of warm clove tea before bed has become a popular wellness trend, with social-media posts claiming that a “Japanese doctor” recommends it for everything from better digestion to improved sleep and blood-sugar control.
But there is no good evidence that a specific Japanese doctor has established nighttime clove tea as a medical treatment.
That doesn’t mean cloves are useless. They contain eugenol, a plant compound with antioxidant and other biological properties. However, most evidence for medicinal effects comes from laboratory, animal, or concentrated-extract research—not from drinking a simple cup of clove tea before bed. (NCBI)
🌿 What might clove tea offer?
Cloves can be a flavorful addition to food and beverages, and their eugenol content has been studied for antioxidant, antimicrobial, and anti-inflammatory activity. (Cleveland Clinic)
Some people enjoy clove tea because it is:
- Warm and soothing before bedtime
- Naturally caffeine-free
- Aromatic and flavorful
- Easy to prepare
- Potentially helpful for mild digestive comfort
However, claims that it detoxes the body, melts belly fat, cures diabetes, or guarantees better sleep aren’t supported by strong clinical evidence.
☕ A simple clove tea recipe
Ingredients:
- 3–4 whole cloves
- 1 cup (240 ml) hot water
- Optional: a small piece of ginger
- Optional: a little honey for taste
Directions:
- Add the cloves to a cup or small teapot.
- Pour in hot water.
- Cover and steep for about 5–10 minutes.
- Remove the cloves.
- Add ginger or a small amount of honey if desired.
- Enjoy while warm.
Think of it as a flavorful herbal drink rather than a medicinal treatment.
⚠️ Don’t overdo it
More isn’t necessarily better.
Concentrated clove oil is very different from using a few cloves as a food ingredient. Large amounts of eugenol can cause serious toxicity, including liver injury. (NCBI)
People who take blood thinners, have bleeding disorders, use insulin or certain diabetes medications, are pregnant or breastfeeding, or are preparing for surgery should discuss regular medicinal use of cloves with a healthcare professional. (Cleveland Clinic)
The bottom line
Clove tea can be an enjoyable nighttime beverage, but it shouldn’t be presented as a proven cure or miracle remedy.
If you enjoy the flavor, a mild cup occasionally may be a reasonable food-based choice for most healthy adults. Just remember that traditional use and promising laboratory findings aren’t the same as proven medical benefits.