Study title and authors:
Prospective association of vitamin D concentrations with mortality in postmenopausal women: results from the Women's Health Initiative (WHI).
Eaton CB, Young A, Allison MA, Robinson J, Martin LW, Kuller LH, Johnson KC, Curb JD, Van Horn L, McTiernan A, Liu S, Manson JE.
Center for Primary Care and Prevention, Alpert Medical School of Brown University, Pawtucket, RI, USA. charles_eaton@mhri.org
This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/22030222
25-hydroxyvitamin D (25(OH)D) is the major circulating form of vitamin D and is currently considered the best indicator of vitamin D levels in the body.
This study aimed to determine whether 25-hydroxyvitamin D (vitamin D) levels were associated with cardiovascular disease, cancer, and all-cause mortality in 2,429 postmenopausal women.
The study found:
(a) Women with the lowest vitamin D levels had a 25% increased death rate compared to women with the highest vitamin D levels.
(b) Women with the lowest vitamin D levels had a 27% increased risk of cardiovascular disease deaths compared to women with the highest vitamin D levels.
(c) Women with the lowest vitamin D levels had a 39% increased risk of cancer deaths compared to women with the highest vitamin D levels.
The results of this study show that low levels of vitamin D are associated with increased rates of deaths from all-causes, cardiovascular diseases and cancer.
Vitamin D is only found in foods from animal sources (University of Bristol). The richest sources include lard, eggs, liver, fish, marine oils, organ meats and butter.
Links to other studies:
Can lard and other fatty foods offer protection from peripheral arterial disease?
High vitamin D levels associated with a 40% reduction in colon cancer - Best sources of vitamin D = High fat foods & sunshine
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