Coenzyme Q10 (CoQ10) is a substance that is naturally present in the human body, with the highest levels in the heart, liver, kidneys, and pancreas. It is sold in the United States as a dietary supplement. Coenzyme Q10 (CoQ10) is a nutrient your body makes naturally. It’s also in many foods. CoQ10 acts as an antioxidant, which protects cells from damage and plays an important part in your. Benefits of CoQ10 are reduced blood pressure and inflammation, and side effects are stomach upset and interference with sleep. If you're interested in natural supplements, you've probably heard of coenzyme Q10 (CoQ10). It's often used to treat headaches, muscle fatigue, and heart conditions. Coenzyme Q10 is a vitamin-like substance required for the function of many organs in the body. It is eaten in small amounts in meat and seafood. Coenzyme Q10 helps provide energy to cells. CoQ10, a compound that aids in cellular energy production and acts as an antioxidant, may offer benefits like improved heart health, enhanced fertility, and better blood sugar control. Coenzyme Q10 is an antioxidant the body naturally makes. Coenzyme Q10 also is called CoQ10. Antioxidants can help protect the body from cell damage. Cells use CoQ10 for growth and to make energy. Levels of CoQ10 in your body lower as you get older. Coenzyme Q10 is an alternative medicine used to reduce the symptoms of mitochondrial disorders (conditions that affect energy-production in the cells of the body). Includes Coenzyme Q10 side effects, interactions and indications. Discover 16 science-backed benefits of Coenzyme Q10 (CoQ10) — from heart health and energy to brain protection and anti-aging. Coenzyme Q (CoQ / ˌkoʊkjuː /), also known as ubiquinone, is a naturally occurring biochemical cofactor (coenzyme) and an antioxidant produced by the human body. CoQ10 serves two main roles: It helps make energy your cells need to function. It acts as an antioxidant to protect against free radicals, which can damage cells and contribute to chronic disease. Your body makes most of the CoQ10 you need.