Coenzyme Q10, a fat-soluble substance, is crucial for the production of adenosine triphosphate (ATP), the primary energy carrier in cells. Naturally occurring in the body, CoQ10 is found in high concentrations in the heart, liver, and kidneys. Its role as an electron carrier in the mitochondrial respiratory chain is vital for energy metabolism. Additionally, CoQ10 is a powerful antioxidant, helping to neutralize free radicals that can cause oxidative stress and damage cellular structures.