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Assessment of vitamin B-6 status in young women consuming a controlled diet containing four levels of vitamin B-6 provides an estimated average requirement and recommended dietary allowance

Hansen, C.M.; Shultz, T.D.; Kwak, H.K.; Memon, H.S.; Leklem, J.E.

Journal of Nutrition 131(6): 1777-1786

2001


ISSN/ISBN: 0022-3166
PMID: 11385067
DOI: 10.1093/jn/131.6.1777
Accession: 003654087

The Recommended Dietary Allowance (RDA) of vitamin B-6 for young women was recently reduced from 1.6 to 1.3 mg/d based on an adequate plasma pyridoxal phosphate (PLP) concentration of 20 nmol/L. To assess vitamin B-6 requirements and suggest recommendations for intake, seven healthy young women consumed a controlled diet providing 1.2 g protein/kg body weight for a 7-d adjustment period (1.0 mg vitamin B-6/d) and three successive 14-d experimental periods (1.5, 2.1 and 2.7 mg/d, respectively).

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