Coenzyme Q (Abbr. CoQ)-Coenzyme Q is a derivative of quinone. CoQ is also called ubiquinone because it is a quinone derivative that is "ubiquitous" or found throughout biological systems. CoQ functions as an antioxidant, in accepting hydrogen atoms from FMNH2 and NADH2.
CoQ also transfers electrons to cytochromes, in the electron transport chain. The electron transport chain is an energy producing cycle that occurs in the mitochondria of cells. Mitochondria are the energy producing organelles or "factories" in each cell. Thus, Coenzyme Q is an essential part of energy production in virtually all cell types of the human.
RDA of CoQ
There is no RDA for Coenzyme Q in the human. However, as with increasing age, the levels of CoQ may diminish, thereby precipitating the need for supplementation. in this case, coenzymeQ would then become a vitamin by defintion. Remember, a vitamin is a substance that we require in small amounts and that our body either doesn't synthesize it at all, or fails to synthesize enough.