Basics
Nicotinamide adenine dinucleotide (NAD) is not an active substance as such, but a homeopathic remedy. It is also a coenzyme, which means that it is important for the catalytic activity of enzymes. NAD plays a crucial role in redox reactions in our body, such as the breakdown of carbohydrates. A deficiency of nicotinamide adenine dinucleotide can lead to pellagra, a form of malnutrition. The symptoms of pellagra are inflammation of the skin (dermatitis), diarrhea and dementia.