Low dietary calcium intakes are related to
conditions other than bone health, such as hypertension, with possible
involvement of renin-angiotensin system [1]. Objective of this study was
to explore association of dietary calcium intake and body
composition with blood pressure (BP) in 10 -14 year-old Indian
adolescents.
Four hundred and seventeen apparently healthy
adolescents [218 boys , mean (SD) age 12.0 (1.3) years] were enrolled
from schools catering to affluent classes from Pune after institutional
ethics approval and appropriate consents. Standing height, weight,
waist, blood pressure were measured. Body mass index (BMI) and Z scores
were computed using standard procedures and reference values. Body
composition (body fat% and muscle mass) were measured using
Tanita-SC-240, Tetra polar bioelectrical impendence analyzer (Tanita
Corporation, Tokyo, Japan) with children wearing minimal clothings,
using standard protocol [2]. Three non-consecutive day 24 hour-diet
recalls (including one Sunday) were recorded using standardized
questionnaires, and nutrient data were analysed using cooked [3] and raw
food data base [4].
Prevalence of hypertension (BP >95
Acknowledgements: Director, HCJMRI, Dr. Uma
Divate for giving permission for carrying out this study.
Contributors: NAK, ZM, VVK, SAC and AVK:
designed research; NAK, AVK were involved in data collection; All
authors were involved in data analysis and manuscript writing; AVK has
primary responsibility for final content. All authors read and approved
the final manuscript.
Funding: Corporate Social Grant: Novo Nordisk
India Pvt. Limited; Competing interests: None stated.
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