Nicotinamide adenine dinucleotide is a coenzyme central to metabolism. Found in all living cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate gro
Arthur Harden, co-discoverer of NAD
Vitamin B3
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Vitamin B3, colloquially referred to as niacin, is a vitamin family that includes three forms, or vitamers: nicotinic acid, nicotinamide, and nicotinamide riboside. All three forms of vitamin B3 are c
Nicotinamide adenine dinucleotide
…or aspartic acid, each a case of an amino acid. Alternatively, more complex components of the coenzymes are taken up from nutritive compounds such as vitamin B3 (also called niacin, or (nicotinic acid, hence the name "nicotinamide"). Similar compounds are produced by reactions that break down the structure of…
A man with pellagra, which is caused by a chronic lack of vitamin B3 in the diet