Vitamin
K2 and Bone Mineral Density
Article Summary:
This study aims to determine the relationship between dietary vitamin
K intake and bone mineral density. The study consisted of 1112 men
and 1479 women between the ages of 29 and 86. Bone mineral content
was taken of the hip and spine. The levels of vitamin K intake were
assessed by a food-frequency questionnaire. The results showed that
women with the lower intakes of vitamin K (around 70.2 micrograms
per day) had a significantly less mean bone mineral density at the
femoral neck and spine than those with the higher vitamin K intake
(around 309 micrograms per day). When certain aspects were controlled,
such as age or supplement use, the same association remained. However,
the vitamin K intake had no effect on bone mineral density in men.
This study concludes that low vitamin K intake in a woman's diet
is associated with lower bone mineral density, which increases the
risk for hip fracture. These findings were not consistent with the
males.
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Authors:
Booth SL, Broe KE, Gagnon DR, Tucker KL, Hannan MT, McLean RR, Dawson-Hughes
B, Wilson PW, Cupples LA, Kiel DP.
Institution:
Jean Mayer US Department of Agriculture Human Nutrition Research
Center on Aging at Tufts University, Boston, MA 02111, USA.
Country of Publication:
United States
Source:
Am J Clin Nutr. 2003 Feb;77(2):512-6. NIH
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