Journal of Obesity & Metabolic Syndrome



Korean J Obes 2009; 18(2): 59-64

Published online June 1, 2009

Copyright © Korean Society for the Study of Obesity.

Daily Calcium Intake and Obesity in Middle-aged Koreans

Tae Young Lee, Hyun Jeong Yoo(1), Nam Seok Joo(1)*

Department of Family Medicine, Health Promotion Center, Daejon Sun Hospital; and Department of Family Practice and Community Health, Ajou University School of Medicine(1)


Background: The relationship between calcium intake and obesity is controversial. The aim of this study was to
examine whether daily dietary calcium intake has any
effect on obesity or metabolic syndrome among
middle-aged and older Korean population.
Methods: Data of 836 healthy subjects from ages 40 to
60, who had visited the Health Promotion Center in Ajou
University Hospital since March 2006 to April 2007, were
analyzed in this cross sectional study. The daily dietary
calcium intake of each subject was evaluated by 24-hour
recall method. Obesity was defined as body mass index
≥ 25 kg/m2. Multiple logistic regression models were
used to estimate the multivariate odds ratios (OR) of
being obese in terms of different levels of daily dietary
calcium intake.
Results: Obese women who were in their 50’s had a
lower intake of daily dietary calcium compared to the
non-obese (obese vs non-obese; 672.19 ± 240.64 mg vs
776.11 ± 213.59 mg, P = 0.016) women. The Odds ratio
of being obese at the lowest quartile of daily dietary
calcium intake was 4.82 (P = 0.016, 95% CI 1.49-19.43)
compared to the highest quartiles even after adjustment
for age and daily total calorie intake. However, no
relationship was noted between daily dietary calcium
intake and metabolic syndrome. In men, neither metabolic
syndrome nor obesity was significantly associated with
dietary daily calcium intake.
Conclusion: Daily dietary calcium intake was
associated with the prevalence of obesity in middle-aged
women, especially in their 50’s.

Keywords: Obesity, Metabolic syndrome, Daily dietary
calcium intake