CoQ10 is a vital catalyst (helper) of the enzymes needed by the cell to produce energy. Especially important for healthy heart function in both men and women, especially those who have taken cholesterol-lowering drugs, which impair the body's production of this important substance. CoQ10 has also been shown to reduce elevated blood pressure, promote weight loss, alleviate the toxic effects of chemotherapeutic (cancer-killing) drugs, and to reduce the risk of breast cancer in women. The highest dietary source of CoQ10 is red meat. As a supplement, it is best taken with other oil based formulas or food to be optimally absorbed. Usual suggested supplemental dose: 100 milligrams per day.