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Abstract Title:

Greater fruit intake was associated with better bone mineral status among Chinese elderly men and women: results of Hong Kong Mr. Os and Ms. Os studies.

Abstract Source:

J Am Med Dir Assoc. 2015 Apr ;16(4):309-15. Epub 2014 Dec 15. PMID: 25523283

Abstract Author(s):

Zhao-min Liu, Jason Leung, Samuel Yeung-shan Wong, Carmen Ka Man Wong, Ruth Chan, Jean Woo

Article Affiliation:

Zhao-min Liu

Abstract:

OBJECTIVES: Although studies in white populations have reported the beneficial effects of intakes of fruit and vegetables (F&V) on bone mass, limited data are available in Asians, especially among the elderly population. We examined the association of F&V intakes and bone mineral status in Chinese elderly adults and explored the potential mechanisms.

DESIGN, SETTING, AND PARTICIPANTS: The study was a population-based cross-sectional study among 4000 Hong Kong Chinese men and women aged 65 years and older.

MEASUREMENTS: Habitual F&V intakes were ascertained from a validated food frequency questionnaire. Bone mineral measurements of the whole body, hip, lumber spine, and femoral neck were made by dual-energy X-ray absorptiometry. Information on demographic, health, and lifestyles factors was obtained by standardized questionnaire. Relations between F&V intakes and bone mass at various sites were assessed by regression models.

RESULTS: Whole-body and femoral neck bone mineral density and content were significantly and positively associated with fruit intake in both men and women, even when adjustment for a range of potential confounders was made. A daily increase of 100 g/kcal total fruit intake was associated with 4.5% and 6.4% increase of BMD at whole body, and 3.9% and 4.8% increase at the femoral neck in men and women, respectively. No significant association was found between vegetable intake and bone mass. The adjustment for vitamin C intake, but not dietary acid load, attenuated the association between fruit intake and bone mass.

CONCLUSIONS: Greater fruit intake was independently associated with better bone mineral status among Chinese elderly men and women. The association is probably modified by dietary vitamin C.

Study Type : Human Study

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