Ubiquinone, also known as coenzyme Q10, is a naturally occurring antioxidant found in the cells of the body. It plays a crucial role in the production of energy within the mitochondria, the powerhouses of cells. Ubiquinone helps convert nutrients from food into adenosine triphosphate (ATP), which is essential for cellular functions. In addition to its role in energy production, ubiquinone also helps protect cells from oxidative stress by neutralizing free radicals. It is present in various foods, such as meat, fish, and nuts, and is also available as a dietary supplement, often used to support heart health and overall well-being.