Vitamin B3

Last revised by Daniel J Bell on 2 Aug 2021

Citation, DOI, disclosures and article data

Citation:

Hacking C, Bell D, Vitamin B3. Reference article, Radiopaedia.org (Accessed on 16 Apr 2024) https://doi.org/10.53347/rID-50105

DOI:

https://doi.org/10.53347/rID-50105

Permalink:

https://radiopaedia.org/articles/50105

rID:

50105

Article created:

19 Dec 2016, Craig Hacking ◉ ◈

Disclosures:

At the time the article was created Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Last revised:

2 Aug 2021, Daniel J Bell ◉

Disclosures:

At the time the article was last revised Daniel J Bell had no recorded disclosures.

View Daniel J Bell's current disclosures

Revisions:

8 times, by 2 contributors - see full revision history and disclosures

Systems:

Central Nervous System, Gastrointestinal

Sections:

Pathology

Synonyms:

Niacin
Nicotinic acid

Vitamin B₃ (niacin or nicotinic acid) is a water-soluble vitamin, part of the vitamin B complex, that is an important part of the coenzyme nicotinamide adenine dinucleotide (NAD+) which is involved in many reactions of cellular metabolism. Vitamin B₃ is one of the hematinics.

Related pathology

pellagra is the clinical syndrome of niacin deficiency, and may affect the CNS, skin and GI system
niacin excess: may be associated with transient symptoms