Niacin (Vitamin B3): Functions

Its coenzymes NAD (nicotinamide adenine dinucleotide) and NADP (nicotinamide adenine dinucleotide phosphate) are of great importance for energy production through oxidation-reduction reactions for more than 200 enzymes. NAD supports breakdown processes of carbohydrates, fats, proteins and alcohol for energy production. NADP supports breakdown processes such as the synthesis of fatty acids and cholesterol.Furthermore, nicotinamide is of great importance for DNA replication, that is, the copying of genetic information and DNA repair.