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Vitamin B-6 status and bioavailability in vegetarian women.
Am J Clin Nutr. 1987 Oct; 46(4):647-51.AJ

Abstract

It has been hypothesized that the vitamin B-6 status of vegetarians and nonvegetarians may differ in relation to bioavailability of vitamin B-6. Fasting blood samples and 24-h urine collections were obtained from 13 Seventh-day Adventist (SDA) vegetarian and 16 non-SDA nonvegetarian women aged 50-83 y. The two groups were further subdivided into vitamin users and nonusers. Dietary intake was estimated from a 3-d diet record. Plasma pyridoxal 5'-phosphate (PLP) was measured by an enzymatic method. Vitamin B-6 intakes were similar and provided 85% of the RDA for both groups. The vegetarians consumed significantly more crude fiber than the nonvegetarians. No significant differences were found between the two groups for plasma PLP, urinary 4-pyridoxic acid, and urinary vitamin B-6 among vitamin nonusers or for age categories within groups. There appeared to be no adverse effect of fiber on the availability or metabolism of vitamin B-6 between these free-living groups.

Authors+Show Affiliations

Department of Foods and Nutrition, Oregon State University, Corvallis 97331.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

2821789

Citation

Shultz, T D., and J E. Leklem. "Vitamin B-6 Status and Bioavailability in Vegetarian Women." The American Journal of Clinical Nutrition, vol. 46, no. 4, 1987, pp. 647-51.
Shultz TD, Leklem JE. Vitamin B-6 status and bioavailability in vegetarian women. Am J Clin Nutr. 1987;46(4):647-51.
Shultz, T. D., & Leklem, J. E. (1987). Vitamin B-6 status and bioavailability in vegetarian women. The American Journal of Clinical Nutrition, 46(4), 647-51.
Shultz TD, Leklem JE. Vitamin B-6 Status and Bioavailability in Vegetarian Women. Am J Clin Nutr. 1987;46(4):647-51. PubMed PMID: 2821789.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Vitamin B-6 status and bioavailability in vegetarian women. AU - Shultz,T D, AU - Leklem,J E, PY - 1987/10/1/pubmed PY - 1987/10/1/medline PY - 1987/10/1/entrez SP - 647 EP - 51 JF - The American journal of clinical nutrition JO - Am. J. Clin. Nutr. VL - 46 IS - 4 N2 - It has been hypothesized that the vitamin B-6 status of vegetarians and nonvegetarians may differ in relation to bioavailability of vitamin B-6. Fasting blood samples and 24-h urine collections were obtained from 13 Seventh-day Adventist (SDA) vegetarian and 16 non-SDA nonvegetarian women aged 50-83 y. The two groups were further subdivided into vitamin users and nonusers. Dietary intake was estimated from a 3-d diet record. Plasma pyridoxal 5'-phosphate (PLP) was measured by an enzymatic method. Vitamin B-6 intakes were similar and provided 85% of the RDA for both groups. The vegetarians consumed significantly more crude fiber than the nonvegetarians. No significant differences were found between the two groups for plasma PLP, urinary 4-pyridoxic acid, and urinary vitamin B-6 among vitamin nonusers or for age categories within groups. There appeared to be no adverse effect of fiber on the availability or metabolism of vitamin B-6 between these free-living groups. SN - 0002-9165 UR - https://www.unboundmedicine.com/medline/citation/2821789/Vitamin_B_6_status_and_bioavailability_in_vegetarian_women_ L2 - https://academic.oup.com/ajcn/article-lookup/doi/10.1093/ajcn/46.4.647 DB - PRIME DP - Unbound Medicine ER -