[PHNUTR-L] Most older women deficient in vitamin D
Kathrynne Holden, MS, RD
fivestar at nutritionucanlivewith.com
Fri Sep 30 04:52:04 PDT 2005
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Most older women deficient in vitamin D
By Dominique Patton
30/09/2005 - Almost two thirds of postmenopausal women with osteoporosis
are deficient in vitamin D, said researchers this week.
Their results, based on a study conducted in 18 countries and during two
seasons, underline the need for further communication by health
officials and doctors of the need for this vitamin.
"Results suggest that vitamin D inadequacy is widespread among women
with osteoporosis across all continents,” noted the international team,
led by Paul Lips from the Vrije Universiteit Medical Center in Amsterdam.
“In this cross-sectional sample, the prevalence of vitamin D inadequacy
is high regardless of latitude or season.”
The findings were presented at the American Society for Bone and Mineral
Research (ASBMR) meeting in Nashville, Tennessee.
Both Denmark and the UK have recently launched campaigns to encourage
women to take vitamin D supplements. The vitamin is known to be crucial
to strong bones but is difficult to get enough from the diet.
In the study, researchers recruited 2589 postmenopausal women with
osteoporosis living in 18 countries across Europe, the Middle East,
Latin America, and the Asia Pacific region.
Of the group, 37 per cent reported taking at least 400 IU daily of
vitamin D supplements, and 60 per cent reported taking prescription
medication for osteoporosis.
The researchers obtained the women's serum 25-hydroxyvitamin-D levels
and also measured the parathyroid hormone. They asked the subjects to
complete questionnaires on factors that could influence vitamin D status.
The overall prevalence of vitamin D inadequacy was 64 per cent, or 59
per cent for those women recruited during summer and 69 per cent for
those recruited during winter.
Vitamin D inadequacy was defined as less than 30 ng/mL.
“The reesults underscore a need to improve physician and patient
awareness of the importance of adequate vitamin D supplementation in
postmenopausal women with osteoporosis,” concluded the authors' abstract.
Kathrynne Holden, MS, RD < fivestar at nutritionucanlivewith.com >
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