CoQ10 (CoEnzyme Q10) or ubiquinone is essentially a vitamin or vitamin-like substance. A powerful antioxidant, CoQ10 assists in the body's battle against harmful free radicals that can lead to a variety of diseases and conditions including heart disease and cancer. CoQ10 is a micronutrient essential to all human life. It is a naturally occurring nutrient that works as a co-factor in the body’s electron transport system where all of the body’s energy is derived. CoQ10 regulates the flow of oxygen moving in and out of the mitochondria, which are the cell’s power plants. The body’s cellular power plants can’t function without CoQ10 (CoEnzyme Q10). In addition to being found in manufactured supplements, Coenzyme Q10 naturally occurs in foods like fish, broccoli, whole grain, red meat and eggs and is made naturally in the body. A coenzyme is a substance needed for the proper functioning of an enzyme, a protein that speeds up the rate at which chemical reactions take place in the body. Taking Coenzyme q10 as a dietary supplement may aid in maintaining youthful levels of this vital substance.