Journal
PUBLIC HEALTH NUTRITION
Volume 14, Issue 2, Pages 340-346Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S1368980010002454
Keywords
25-Hydroxyvitamin D; Vitamin D; Vegetarian; Vegan
Funding
- Cancer Research UK
- Medical Research Council
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Objective: Vegetarians and vegans exclude certain food sources of vitamin D from their diet, but it is not clear to what extent this affects plasma concentrations of 25-hydroxyvitamin D (25(OH)D). The objective was to investigate differences in vitamin D intake and plasma concentrations of 25(OH)D among meat eaters, fish eaters, vegetarians and vegans. Design: A cross-sectional analysis. Setting: United Kingdom. Subjects: Plasma 25(OH)D concentrations were measured in 2107 white men and women (1388 meat eaters, 210 fish eaters, 420 vegetarians and eighty-nine vegans) aged 20-76 years from the European Prospective Investigation into Cancer and Nutrition (EPIC) Oxford cohort. Results: Plasma 25(OH)D concentrations reflected the degree of animal product exclusion and, hence, dietary intake of vitamin D; meat eaters had the highest mean intake of vitamin D (3.1 (95% CI 3.0, 3.2) mu g/d) and mean plasma 25(OH)D concentrations (770(95% CI 75.4, 78.8) nmol/l) and vegans the lowest (07(95% CI 0.6, 0.8) mu g/d and 55.8 (95% CI 51.0, 61.0) nmol/l, respectively). The magnitude of difference in 25(OH)D concentrations between meat eaters and vegans was smaller (20%) among those participants who had a blood sample collected during the summer months (July September) compared with the winter months (38%; January March). The prevalence of low plasma concentrations of 25(OH)D (<25 nmol/l) during the winter and spring ranged from <1% to 8% across the diet groups. Conclusions: Plasma 25(OH)D concentrations were lower in vegetarians and vegans than in meat and fish eaters; diet is an important determinant of plasma 25(OH)D in this British population.
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