Coenzyme Q10

Coenzyme Q10 is similar to a vitamin and is naturally made in the body. In most cases, the body makes all the coenzyme Q10 that it needs. However, when people have certain medical conditions, they may have lower levels. In these situations, a supplement may be necessary. Although supplements do appear to help with certain health conditions, more research is needed to confirm their effectiveness.

What Is Coenzyme Q10?

Coenzyme Q10 is short for CoQ10 and is a vitamin-like substance necessary for life. Fortunately, the human body can make coenzyme Q10 on its own, and most people probably do not need to take any supplements. However, levels can be low in people with certain medical conditions, and supplementation may be beneficial in these or other situations.
(Click What Is Coenzyme Q10 Used For? for more information.)

Side Effects of Coenzyme Q10

Coenzyme Q10 is usually tolerated quite well, although it can sometimes cause side effects such as:
(Click Coenzyme Q10 Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)

Safety Issues With Coenzyme Q10

Reasonable doses of coenzyme Q10 are probably safe for most people, especially if high-quality supplements are used, because these supplements are less likely to be contaminated or have other problems. However, some people are more likely than others to experience problems. Therefore, you should talk with your healthcare provider prior to taking supplements if you have:
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about any medications you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Coenzyme Q10 Safety for more information, including any available warnings and precautions.)
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