Vitamin D deficiency and sufficiency among Canadian children residing at high latitude following the revision of the RDA of vitamin D intake in 2010.
Br J Nutr
; 117(3): 457-465, 2017 02.
Article
in En
| MEDLINE
| ID: mdl-28245892
ABSTRACT
Recently, countries at high latitudes have updated their vitamin D recommendations to ensure adequate intake for the musculoskeletal health of their respective populations. In 2010, the dietary guidelines for vitamin D for Canadians and Americans aged 170 years increased from 5 µg/d to 15 µg/d, whereas in 2016 for citizens of the UK aged ≥4 years 10 µg/d is recommended. The vitamin D status of Canadian children following the revised dietary guidelines is unknown. Therefore, this study aimed to assess the prevalence and determinants of vitamin D deficiency and sufficiency among Canadian children. For this study, we assumed serum 25-hydroxy vitamin D (25(OH)D) concentrations <30 nmol/l as 'deficient' and ≥50 nmol/l as 'sufficient'. Data from children aged 318 years (n 2270) who participated in the 2012/2013 Canadian Health Measures Survey were analysed. Of all children, 5·6% were vitamin D deficient and 71% were vitamin D sufficient. Children who consumed vitamin D-fortified milk daily (77 %) were more likely to be sufficient than those who consumed it less frequently (OR 2·4; 95% CI 1·7, 3·3). The 9% of children who reported taking vitamin D-containing supplements in the previous month had higher 25(OH)D concentrations (ß 5·9 nmol/l; 95% CI 1·3, 12·1 nmol/l) relative to those who did not. Children who were older, obese, of non-white ethnicity and from low-income households were less likely to be vitamin D sufficient. To improve vitamin D status, consumption of vitamin D-rich foods should be promoted, and fortification of more food items or formal recommendations for vitamin D supplementation should be considered.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Vitamin D
/
Vitamin D Deficiency
/
Nutritional Status
Type of study:
Etiology_studies
/
Prevalence_studies
/
Qualitative_research
/
Risk_factors_studies
Country/Region as subject:
America do norte
Language:
En
Journal:
Br J Nutr
Year:
2017
Type:
Article
Affiliation country:
Canada