Τίτλος:
Tea and coffee consumption in relation to vitamin D and calcium levels
in Saudi adolescents
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
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.
Συγγραφείς:
Al-Othman, Abdulaziz
Al-Musharaf, Sara
Al-Daghri, Nasser M. and
Yakout, Sobhy
Alkharfy, Khalid M.
Al-Saleh, Yousef
Al-Attas,
Omar S.
Alokail, Majed S.
Moharram, Osama
Sabico, Shaun and
Kumar, Sudhesh
Chrousos, George P.
Περιοδικό:
Nutrition Journal
Εκδότης:
BioMed Central Ltd.
Λέξεις-κλειδιά:
Coffee intake; Tea intake; Vitamin D levels; Saudi adolescents
DOI:
10.1186/1475-2891-11-56
