Vitamin
K and Bone Mineral Density
Article Summary:
The study aimed to determine the relationship between a high dietary
intake of vitamin K and bone mineral density in women. The study
consisted of 72327 women between the ages of 38 and 63. The information
was obtained with the use of a food-frequency questionnaire, and
a follow up was given 10 years later. After the follow up, women
in the upper quintiles of vitamin K intake were found to have a
significantly higher bone mineral density (results were age adjusted)
than those in the lowest quintile of vitamin K intake. A lower bone
mineral content leads to a higher risk of hip fracture. The study
also found that a higher lettuce consumption was related to a lower
risk of hip fracture, due to the fact that lettuce is the food that
contributed the most to dietary vitamin K intake. The results from
this study conclude that a lower vitamin K intake is associated
with a lower bone mineral density, increasing the risk of hip fracture
in women.
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Authors:
Diane Feskanich, Peter Weber, Walter C Willett, Helaine Rockett,
Sarah L Booth and Graham A Colditz
Institution:
University of North Carolina- Chapel Hill
Country of Publication:
United States
Source:
American Journal of Clinical Nutrition, Vol. 69, No. 1, 74-79, January
1999.
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