Vitamin D intakes in 18-64-y-old Irish adults

Eur J Clin Nutr. 2004 Nov;58(11):1509-17. doi: 10.1038/sj.ejcn.1602001.

Abstract

Objective: To estimate vitamin D intakes in a representative sample of Irish adults and to assess the contribution of foods to these intake estimates.

Design: Vitamin D intakes in 1379, 18-64-y-old adults from the North/South Ireland Food Consumption Survey were estimated using a combination of new analytical data for vitamin D in foods, determined by HPLC, and used to revise recipe calculations, together with existing data from McCance and Widdowson's The Composition of Foods, 5th Edition plus supplements.

Results: The total mean daily intake (MDI) of vitamin D (1 microg=40 IU) from all sources was 4.2 microg. The MDI was significantly higher (P<0.001) when the contribution from nutritional supplements was included (4.2 microg) compared with food sources only (3.2 microg). Men had significantly higher intakes (4.4 microg) than women (4.0 microg; P<0.001), which increased significantly (P<0.001) with age in both sexes. Meat/meat products (30.1%), fish/fish products (14.3%) and eggs/egg dishes (9.1%) were the main contributors to vitamin D intake. Supplements contributed 6.8 and 12% to MDI in men and women, respectively. In all, 74% of adults had an MDI of vitamin D that was less than the median (5 microg) of the recommended daily range of 0-10 microg.

Conclusion: The findings of this study suggest that a large number of Irish adults have low vitamin D intakes. This, along with emerging evidence of low vitamin D status in at least some population subgroups, suggests that strategies to increase vitamin D intakes, including fortification of food, should be investigated.

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Chromatography, High Pressure Liquid
  • Diet Surveys
  • Diet*
  • Dietary Supplements
  • Female
  • Food Analysis
  • Humans
  • Ireland
  • Male
  • Middle Aged
  • Nutrition Policy
  • Nutritional Requirements
  • Sex Factors
  • Vitamin D / administration & dosage*

Substances

  • Vitamin D