β-Nicotinamide Adenine Dinucleotide, reduced form, also known as NADH, is a coenzyme that plays a crucial role in the production of energy within cells. As the reduced form of NAD+, it participates in important redox reactions, helping to transfer electrons in the process of cellular respiration. NADH is a vital component in the synthesis of adenosine triphosphate (ATP), the primary energy currency of the cell. Due to its significance in energy metabolism, NADH supplements are increasingly popular among individuals seeking enhanced vitality and overall well-being.