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Overview :
Vitamin D deficiency may develop in a person if certain risk
factors are present.
Age-related risk groups:
(1) infants
(2) elderly
Environmental risk groups:
(1) very limited exposure to sunlight or a source emitting
sunlight equivalent light
(2) people at a high latitude (near North or South Poles)
during winter
(3) submariners and astronauts
Dietary:
(1) no or
limited intake of vitamin D foritified dairy products
(2) no or
limited dietary supplementation with vitamin D
(3) no or
limited intake in foods rich in vitamin D (fortified cereals, cod liver oil,
eggs, fatty fish)
Other:
(1)
dark-colored skin
(2)
malabsorption
(3)
pregancy and lactation
(4) drug
interactions reducing vitamin D utilization or increasing loss (anticonvulsants,
antituberuclous drugs)
(5)
alcoholic
(6) renal
failure
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