CoQ10

Although the body naturally makes CoQ10, this vitamin-like substance may be low in some people who have certain medical conditions. As a result, these people may need to take a CoQ10 supplement. The supplements may cause nausea, diarrhea, and heartburn. CoQ10 is responsible for several functions within the cells of the body, such as producing an important energy molecule, protecting cells from damage, and stabilizing cellular membranes.

 

What Is CoQ10?

CoQ10 is short for coenzyme Q10 and is a vitamin-like substance necessary for life. Fortunately, the human body can make CoQ10 on its own, and most people probably do not need to take any supplements. However, CoQ10 levels can be low in people with certain medical conditions, and supplementation may be beneficial in some situations.
 
(Click Benefits of CoQ10 for more information on what CoQ10 is used for.)
 

How Does CoQ10 Work?

CoQ10 has several different functions within the cells of the body, such as:
 
 
  • ATP production -- CoQ10 is important for the production of ATP, an important molecule in the body. ATP provides the energy for most of the processes within cells. The production of ATP occurs within certain structures in the cells known as mitochondria.
     
  • Antioxidant effects -- CoQ10 acts as an antioxidant, protecting cells from oxidation damage from free radicals. It also helps cells "recycle" other antioxidants, such as vitamins E and C.
     
  • Membrane stabilization -- CoQ10 may protect and stabilize cellular membranes.
     
These are just a few of the ways that researchers think CoQ10 may work. As more studies are done, more information will become available about how it works.
 
(CoQ10 Continued: Page 2)
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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;