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Tea consumption may decrease the risk of osteoporosis: an updated meta-analysis of observational studies.

Ming Guo1, Hua Qu2, Lin Xu3

  • 1China Academy of Chinese Medical Sciences, Beijing, China; Cardiovascular Diseases Center, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.

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|June 22, 2017
PubMed
Summary
This summary is machine-generated.

This meta-analysis found that tea consumption may increase bone mineral density (BMD), but its effect on preventing osteoporotic fractures needs more research. Further high-quality trials are recommended.

Keywords:
Bone mineral densityFractureMeta-analysisOsteoporosisTea

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Area of Science:

  • Epidemiology
  • Nutrition Science
  • Bone Health

Background:

  • Inconsistent findings exist regarding tea consumption and osteoporosis risk.
  • Observational studies have explored this association with varying results.

Purpose of the Study:

  • To conduct an updated meta-analysis of observational studies.
  • To assess the correlation between tea consumption and osteoporosis risk.

Main Methods:

  • Searched MEDLINE, EMBASE, and Cochrane Library for cohort, cross-sectional, and case-control studies up to July 15, 2016.
  • Included 14 articles (16 studies) involving 138,523 participants.
  • Calculated pooled odds ratios (ORs) using a random-effect model.

Main Results:

  • Seven studies indicated increased bone mineral density (BMD) with tea consumption (ORs ranging from 0.01 to 0.04).
  • Nine studies found no association between tea consumption and osteoporotic fracture (OR, 0.86; 95% CI, 0.74-1.01).

Conclusions:

  • Tea consumption may positively influence bone mineral density.
  • The link between tea intake and osteoporotic fracture risk requires further investigation.
  • High-quality clinical trials are needed to clarify the relationship between tea and osteoporosis.