A glossary of NAD terms

Reference for the terminology you will meet across NAD products.

NAD / NAD+

Nicotinamide adenine dinucleotide. A coenzyme present in all living cells. NAD+ is the electron-accepting form.

NADH

The same molecule carrying electrons. NAD+ and NADH interconvert continuously.

NMN

Nicotinamide mononucleotide. A precursor the body can convert into NAD.

NR

Nicotinamide riboside. Another precursor, via a different route.

Precursor

A compound the body converts into another compound.

Coenzyme

A non-protein helper molecule an enzyme needs in order to function.

Sublingual

Under the tongue. A route of administration, not a claim.

Bioavailability

The measured proportion of a substance reaching circulation in usable form.

Novel food

An ingredient without significant UK consumption history before May 1997, requiring authorisation.

Authorised health claim

A claim permitted on the GB register, tied to a nutrient at a qualifying amount.

Certificate of analysis

A document from a laboratory reporting what testing found for a specific batch.

Proprietary blend

Several ingredients declared under one combined weight, concealing individual amounts.