Important vitamin for supporting energy production in the Kreb's Cycle (also called the Citric Acid Cycle or the Tricarboxylic Acid Cycle) and the electron transport system that occur in the mitochondria of our cells.

Used to make oxidized and reduced forms of adenine dinucleotide, which are commonly written as NAD+ and NADH, respectively. In addition to supporting energy production in mitochondia, niacin plays an important role in oxidation/reduction reactions, which are an essential component of human metabolism.