 |
|
Epidemiological Evidence of Increased Bone Mineral Density in Habitual Tea Drinkers
Chih-Hsing Wu, MD;
Yi-Ching Yang, MD;
Wei-Jen Yao, MD;
Feng-Hwa Lu, MD;
Jin-Shang Wu, MD;
Chih-Jen Chang, MD
Arch Intern Med. 2002;162:1001-1006.
Background Researchers have hypothesized that bone mineral density (BMD) may be
influenced by chemical compounds such as caffeine, phytoestrogen, fluoride,
and many compounds that are contained in tea extracts. Hence, the relationship
between habitual tea consumption and BMD is an interesting issue.
Methods Based on an epidemiological survey, we enrolled 497 men and 540 women,
30 years and older, in our study. All subjects were questioned about their
habit of tea consumption and other lifestyle characteristics by means of a
structured questionnaire. Dual-energy x-ray absorptiometry was used to measure
the BMD of the total body, lumbar spine (L1-L4), hip neck, and Ward triangle
regions.
Results Five hundred two subjects (48.4%) were habitual tea drinkers, with a
mean duration of tea consumption of approximately 10 years. Compared with
nonhabitual tea drinkers, subjects with habitual tea consumption of 6 to 10
years showed higher lumbar spine BMDs, and those with consumption of more
than 10 years showed the highest BMDs of all measured regions. Under the multiple
stepwise regression models, sex, age, body mass index, total physical activity,
and habit of tea consumption were the major significant variables for the
different BMD regions. Regarding the behavioral characteristics of tea consumption,
the duration of tea consumption was the only independent determinant for the
BMDs.
Conclusion Habitual tea consumption, especially for more than 10 years, has significant
beneficial effects on BMD of the total body, lumbar spine, and hip regions
in adults.
From the Departments of Family Medicine (Drs C.-H. Wu, Yang, Lu, J.-S.
Wu, and Chang) and Nuclear Medicine (Dr Yao), National Cheng Kung University
Hospital, Tainan, Taiwan.
RELATED ARTICLE
Archives of Internal Medicine Reader's Choice: Continuing Medical Education
Arch Intern Med. 2002;162(9):1071-1072.
FULL TEXT
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES
Tea drinking is associated with benefits on bone density in older women
Devine et al.
Am. J. Clin. Nutr. 2007;86:1243-1247.
ABSTRACT
| FULL TEXT
Habitual Tea Consumption and Risk of Osteoporosis: A Prospective Study in the Women's Health Initiative Observational Cohort
Chen et al.
Am J Epidemiol 2003;158:772-781.
ABSTRACT
| FULL TEXT
|
