[PHNUTR-L] Drinking Tea Exerts Beneficial Effects on Bone Structure
in Elderly Women
fivestar at nutritionucanlivewith.com
Tue Oct 16 18:39:35 PDT 2007
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Drinking Tea Exerts Beneficial Effects on Bone Structure in Elderly Women
Reference: "Tea drinking is associated with benefits on bone density in
older women," Devine A, Hodgson JM, et al, Am J Clin Nutr, 2007; 86(4):
1243-7. (Address: Devine, Nutrition Program, School of Exercise,
Biomedical and Health Science, Edith Cowan University, 100 Joondalup
Drive, Joondalup WA 6027 Australia. E-mail: a.devine at ecu.edu.au ).
Summary: In a study involving a cross-sectional analysis of the
relation between tea intake and hip structure and a prospective analysis
of the relation between tea intake and hip structure over 4 years of
follow-up, results indicate that tea drinking (black tea and green tea,
but not herbal tea) exerts beneficial effects on bone structure by
reducing bone loss in elderly women. In a cross-sectional analysis
involving 1,027 women aged 70-85 years, usual tea intake was assessed by
using a questionnaire, and hip structure was assessed by dual-energy
X-ray absorptiometry (DXA) areal bone mineral density (aBMD). Total hip
aBMD was 2.8% greater in tea drinkers than in non-tea drinkers. In a
prospective analysis involving 164 elderly women, the relation of tea
intake at baseline with change in aBMD over a 4 year period was
assessed. After 4 years, tea drinkers showed an average loss of 1.6% of
their total hip aBMD, compared to baseline, whereas non-tea drinkers
showed an average loss of 4.0% of their total aBMD, compared to
baseline. Thus, the authors of this study conclude, "Tea drinking is
associated with preservation of hip structure in elderly women. This
finding provides further evidence of the beneficial effects of tea
consumption on the skeleton."
Kathrynne Holden, MS, RD < fivestar at nutritionucanlivewith.com >
"Ask the Parkinson Dietitian" http://www.parkinson.org/
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