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Journals of Gerontology Series A: Biological Sciences and Medical Sciences, Vol 51, Issue 6 B417-B424, Copyright © 1996 by The Gerontological Society of America

MULTICENTER STUDY

Vitamin B-6 malnutrition among elderly Europeans: the SENECA study

RP van der Wielen, MR Lowik, J Haller, H van den Berg, M Ferry and WA van Staveren
Department of Human Nutrition, Wageningen Agricultural University, The Netherlands.

Inadequate vitamin B-6 status is common among elderly people. It is still unclear to what extent factors other than reduced vitamin B-6 intake are responsible for this. We studied the vitamin B-6 intake and status [measured as plasma pyridoxal 5'-phosphate (PLP)] in 546 elderly Europeans, aged 74-76 years, with no known vitamin B-6 supplement use. In addition, we examined interrelations and associations with other dietary and lifestyle factors, including indicators of physical health. Overall, 27% of the males and 42% of the females had dietary vitamin B- 6 intakes below the mean minimum requirements (.015 mg/g protein and/or < 1.0 mg/day), and 22% of both males and females had low plasma PLP levels (< 20 nmol/L). Plasma PLP was positively associated with vitamin B-6 intake, alcohol intake, and serum albumin, and was weakly negatively associated with body mass index. Although the serum albumin levels fell within the normal range, these findings suggest that this transport protein is related with vitamin B-6 status of elderly people, either directly or as a result of underlying health problems. It is concluded that, based on the references for younger adults, the vitamin B-6 status of elderly people is marginal. Trials are needed to quantify functional and health consequences of improving the vitamin B-6 status of elderly people.


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