Tea and coffee consumption in relation to vitamin D and calcium levels in Saudi adolescents.
Nutr J
; 11: 56, 2012 Aug 20.
Article
em En
| MEDLINE
| ID: mdl-22905922
ABSTRACT
BACKGROUND:
Coffee and tea consumption was hypothesized to interact with variants of vitamin D-receptor polymorphisms, but limited evidence exists. Here we determine for the first time whether increased coffee and tea consumption affects circulating levels of 25-hydroxyvitamin D in a cohort of Saudi adolescents.METHODS:
A total of 330 randomly selected Saudi adolescents were included. Anthropometrics were recorded and fasting blood samples were analyzed for routine analysis of fasting glucose, lipid levels, calcium, albumin and phosphorous. Frequency of coffee and tea intake was noted. 25-hydroxyvitamin D levels were measured using enzyme-linked immunosorbent assays.RESULTS:
Improved lipid profiles were observed in both boys and girls, as demonstrated by increased levels of HDL-cholesterol, even after controlling for age and BMI, among those consuming 9-12 cups of coffee/week. Vitamin D levels were significantly highest among those consuming 9-12 cups of tea/week in all subjects (p-value 0.009) independent of age, gender, BMI, physical activity and sun exposure.CONCLUSION:
This study suggests a link between tea consumption and vitamin D levels in a cohort of Saudi adolescents, independent of age, BMI, gender, physical activity and sun exposure. These findings should be confirmed prospectively.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Chá
/
Vitamina D
/
Cálcio da Dieta
/
Café
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Child
/
Female
/
Humans
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
Nutr J
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2012
Tipo de documento:
Article