Vitamin B4
Appearance
Vitamin B4 is a former designation given to several distinct chemical compounds, none of which is currently considered a true vitamin:
- Choline is synthesized by the human body, but not sufficiently to maintain good health, and is now considered an essential dietary nutrient.[1]
- Adenine is a nucleobase synthesized by the human body.[2]
- Carnitine is an essential dietary nutrient for certain worms, but not for humans.[3]
- ^ Zeisel SH, da Costa KA (November 2009). "Choline: an essential nutrient for public health". Nutrition Reviews. 67 (11): 615–23. doi:10.1111/j.1753-4887.2009.00246.x. PMC 2782876. PMID 19906248.
- ^ Reader V (1930). "The assay of vitamin B(4)". The Biochemical Journal. 24 (6): 1827–31. doi:10.1042/bj0241827. PMC 1254803. PMID 16744538.
- ^ Bender DA (29 January 2009). A Dictionary of Food and Nutrition. Oxford University Press. p. 521. ISBN 978-0-19-157975-2.