Medical Definition of coenzyme Q10
: a ubiquinone C59H90O4 of humans and most other mammals that has a side chain with ten isoprenoid units and possesses antioxidant properties <The many claims made by proponents of coenzyme Q10 … that it can help treat heart failure, cancer and diabetes, improve sperm quality and even help you live longer—stem from the fact that the compound plays a crucial role in almost every cell in the body. As a rule, coenzymes help enzymes do their job: in this case, the enzymes that produce energy in our cells.—New Scientist, 30 Aug. 2014>—abbreviation CoQ10
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