NDNS 65+: Prevalence of Vitamin D Deficiency
Plasma 25-hydroxyvitamin D <25nmol/l
•
Plasma 25-OHD levels show considerable seasonal variation with low
levels being commonplace in late winter and spring.
•
Dietary sources provide approximately 10% of
intake of the vitamin.
•
Preferred level for those with osteoporosis is
>
75 nmol/l