Coenzyme Q10 may sound like something conjured up by clever pharmaceutical scientists—but this fat-soluble, vitamin -like compound is naturally made by the body. And it plays important roles in essential bodily processes, helping enzymes function. “CoQ10 is also known as ubiquinone— a name related to ‘ubiquitous,’ meaning ‘everywhere’ — because it is found in almost all plant and animal cells in very low concentrations,” says Dr. David L. Katz, a preventive medicine specialist and past