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.
- Adenine is a nucleobase synthesized by the human body.
- Carnitine is an essential dietary nutrient for certain worms, but not for humans.
References
- 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.
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