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Moderate alcohol consumption and increased bone mineral density: potential ethanol and non-ethanol mechanisms

Published online by Cambridge University Press:  07 March 2007

R. Jugdaohsingh ,
M. A. O'Connell ,
S. Sripanyakorn  and
J. J. Powell
R. Jugdaohsingh
Affiliation:
Gastrointestinal Laboratory, The Rayne Institute, St Thomas' Hospital, London, SE1 7EH, UK
M. A. O'Connell
Affiliation:
MRC Human Nutrition Research, Elsie Widdowson Laboratory, Fulbourn Road, Cambridge, CB1 9NL, UK
S. Sripanyakorn
Affiliation:
Gastrointestinal Laboratory, The Rayne Institute, St Thomas' Hospital, London, SE1 7EH, UK
J. J. Powell*
Affiliation:
MRC Human Nutrition Research, Elsie Widdowson Laboratory, Fulbourn Road, Cambridge, CB1 9NL, UK
*
*Corresponding author: Professor Jonathan J. Powell, fax +44 1223 437515, email [email protected]
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Abstract

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Mounting epidemiological evidence indicates an association between the moderate ingestion of alcoholic beverages and higher bone mineral density (v. abstainers). More limited findings provide some evidence for translation of this association into reduced fracture risk, but further studies are required. Here, these data are reviewed and caveats in their assimilation, comparison and interpretation as well as in the use and application of bone health indices are discussed. Whilst it is concluded that evidence is now strong for the moderate alcohol–bone health association, at least in relation to bone mineral density, mechanisms are less clear. Both ethanol and non-ethanol components have been implicated as factors that positively affect bone health in the light of moderate consumption of alcoholic beverages, and four particular areas are discussed. First, recent findings suggest that moderate ethanol consumption acutely inhibits bone resorption, in a non-parathyroid hormone- and non-calcitonin-dependent fashion, which can only partly be attributed to an energy effect. Second, critical review of the literature does not support a role for moderate ethanol consumption affecting oestrogen status and leading to a knock-on effect on bone. Third, Si is present at high levels in certain alcoholic beverages, especially beer, and may have a measurable role in promoting bone formation. Fourth, a large body of work indicates that phytochemicals (e.g. polyphenols) from alcoholic beverages could influence bone health, but human data are lacking. With further work it is hoped to be able to model epidemiological observations and provide a clear pathway between the magnitude of association and the relative contribution of these mechanisms for the major classes of alcoholic beverage.

Keywords

Bone healthModerate alcohol intakeMechanismsSiliconPhytochemicals
Type
Satellite Symposium on ‘Fish oils: a parenteral perspective’
Information
Proceedings of the Nutrition Society , Volume 65 , Issue 3 , August 2006 , pp. 291 - 310
Copyright
Copyright © The Nutrition Society 2006

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