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Coenzyme Q10 (CoQ10) is a substance similar to a vitamin. It is found in every cell of the body. Your body makes CoQ10, and your cells use it to produce energy your body needs for cell growth and maintenance. It also functions as an antioxidant, which protects the body from damage caused by harmful molecules. CoQ10 is naturally present in small amounts in a wide variety of foods, but levels are particularly high in organ meats such as heart, liver, and kidney, as well as beef, soy oil, sardines, mackerel, and peanuts.
Coenzymes help enzymes work to digest food and perform other body processes, and they help protect the heart and skeletal muscles.
CoQ10 is available in the United States as a dietary supplement. It is also known as Q10, vitamin Q10, ubiquinone, or ubidecarenone.
People take coenzyme Q10 (CoQ10) supplements for many reasons, including to boost energy, to speed recovery from exercise, and to help reduce the effects certain medicines can have on the heart, muscles, and other organs.
There is some evidence that coenzyme Q10 may help to:
Taking coenzyme Q10 (CoQ10) may cause mild insomnia or a rise in liver enzymes in some people. Other reported side effects include rashes, nausea, upper abdominal pain, dizziness, sensitivity to light, irritability, headache, heartburn, and fatigue.
Taking CoQ10 can reduce the body's response to the blood thinner (anticoagulant) medicine warfarin.
The U.S. Food and Drug Administration (FDA) does not regulate dietary supplements in the same way it regulates medicines. A dietary supplement can be sold with limited or no research on how well it works or on its safety.
Always tell your doctor if you are using a dietary supplement or if you are thinking about combining a dietary supplement with your conventional medical treatment. It may not be safe to forgo your conventional medical treatment and rely only on a dietary supplement. This is especially important for women who are pregnant or breastfeeding.
When using dietary supplements, keep in mind the following:
Qu H, et al. (2018). Effects of coenzyme Q10 on statin-induced myopathy: An updated meta-analysis of randomized controlled trials. Journal of the American Heart Association, 7(19): e009835. DOI: 10.1161/JAHA.118.009835. Accessed July 22, 2021.
National Cancer Institute (2021). Coenzyme Q10 (PDQ)—Health Professional Version. National Cancer Institute. https://www.cancer.gov/about-cancer/treatment/cam/hp/coenzyme-q10-pdq. Accessed July 22, 2021.
Current as of:
January 3, 2022
Author: Healthwise StaffMedical Review: Adam Husney MD - Family Medicine
Current as of: January 3, 2022
Adam Husney MD - Family Medicine
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