NAD is a coenzyme found in virtually all human cells. The abbreviation stands for nicotinamide adenine dinucleotide. NAD is one of the central molecules of energy-yielding metabolism and exists in an oxidised and a reduced form.
Its electron transfers are particularly interesting: in metabolic reactions, NAD can take up electrons and pass them on as NADH. The body forms NAD from various precursors, including niacin compounds. NADH is the reduced form of this coenzyme.
Cell metabolism constantly produces intermediate products that are assembled into larger molecules or modified enzymatically. Small chemical groups such as acetyl, methyl or phosphate groups can considerably change the properties of a molecule. It is precisely these differences that are interesting when classifying a specific form of a nutrient.
Many compounds produced by the body can be formed and broken down again in different tissues. Their concentrations depend on cellular metabolic pathways. A chemically identical compound from a preparation therefore does not automatically mean a particular change in these processes in the body.
In the Fairvital product NADH 50mg, the formula shows the form and amount of the ingredients used. According to the list of ingredients, these include NADH (reduced nicotinamide adenine dinucleotide). The composition table states 50 mg of NADH per capsule. The pack contains 60 capsules.