Whole cloves

Oral health

Researchers are studying clove oil as a natural method for maintaining oral health due to its effect on plaque, gingivitis, and bacteria in the mouth.

ResearchersTrusted Source compared the effectiveness of an herbal mouth rinse containing clove, basil, and tea tree oil with a commercially available essential oil mouth rinse.

Both mouth rinses were effective against plaque and gingivitis, showing that they may help decrease oral inflammation and bacteria.

The researchers also found that the mouth rinse that contained clove decreased the number of harmful bacteria more than the commercial mouth rinse.

Diabetes

A studyTrusted Source in mice found that clove extract and nigericin, a component of clove extract, reduced insulin resistance in mouse muscle cells.

Mice with diabetes that consumed nigericin also had less insulin resistance and improvements in glucose tolerance, insulin secretion, and beta cell function.

Another animal studyTrusted Source looked at the effect of clove bud powder on laboratory markers in a rat model of diabetes. They found that blood sugar level was lower in rats that received the clove powder compared to those in the control group that did not receive the clove powder.

Cancer

Many herbs and spices are high in antioxidants, which are chemicals that play a part in reducing damage to cells that could lead to cancer. According to Today’s Dietitian, “just 1/2 teaspoon of ground clove is said to contain more antioxidants than 1/2 cup of blueberries.”

In one laboratory studyTrusted Source, scientists found that clove extract was able to slow the growth of multiple types of human cancer cells. Clove extract also increased cell death in colon cancer cells.

The same study also looked at the effect of clove extract on tumor growth in mice. Tumors grew significantly less in the mice treated with clove extract compared to those in the control group.

In another studyTrusted Source, scientists looked at the effect of different preparations of clove extract on human breast cancer cells. They found that clove essential oil and ethanol extract of clove were both toxic to breast cancer cells.

The authors reported that cloves might have a beneficial role in the future of cancer treatment since they can cause cell death and slow cell multiplication.

Obesity

Scientists have also studied cloves regarding their potential effect on obesity. In a studyTrusted Source of mice, researchers found that clove extract reduced the incidence of obesity resulting from a high-fat diet.

Mice who received the clove extract had lower body weight, less abdominal fat, and less liver fat than those in the control group.