Side Effects of Kyolic Garlic

Kyolic garlic, a brand name of the herbal plant garlic, may help in the treatment of atherosclerosis, high blood pressure, cancer, high blood lipids and infections, according to the Memorial Sloan-Kettering Cancer Center. Usually known for its flavoring of foods, garlic may serve multiple purposes to help you on the road to good health. Garlic may, for example, have an effect on several types of cancers, including breast, prostate and rectal cancer. The use of garlic also may help alleviate stress and fatigue. The U.S. Food and Drug Administration has not yet sanctioned the use of Kyolic garlic as a medicine. As with all dietary herbs and supplements, consult your medical provider before using Kyolic garlic for medicinal purposes.

Garlic cloves on a chopping board.
Credit: Janet Rhodes/iStock/Getty Images

Blood-thinning Interactions

The National Center for Complementary and Alternative Medicine states that garlic has blood-thinning abilities. This can become a problem if you take warfarin, a blood thinner. Before taking any garlic supplements, allow your physician to guide you in protecting you from potential drug interactions.


Kyolic garlic may cause a caustic reaction in the mucosa lining of your digestive system. Heartburn may occur as a common side effect. Your upper abdomen as well as your throat and mouth may feel a burning sensation. Eating some bread may help alleviate this sensation. You also may use over-the-counter antacids.

Bad Breath

Kyolic garlic carries the claim of being an odorless formula, but it may induce bad breath as a side effect. Because garlic enters your bloodstream, the taste sensation may occur even if it is taken as a supplement rather than eaten. Using a peppermint toothpaste or mouth spray may help take away the bad odor.


You may experience a side effect of diarrhea, especially when you start ingesting Kyolic garlic. Diarrhea produces loose bowel movements and may cause abdominal cramping. These side effects should subside as you grow accustomed to the supplement.

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