Alternative Health Blog
Low Vitamin D Status Linked to Cognitive Decline in the Elderly
In a population-based study involving 858 adults aged 65 years of
age or older, low levels of vitamin D were found to be associated
with substantial cognitive decline in the elderly. Subjects who
were severely deficient (25(OH)D < 25 nmol/L) had a
significantly higher multivariate adjusted relative risk (1.60) of
substantial cognitive decline according to the Mini-Mental State
Examination (MMSE) and the Trail-Making Test B (1.31), as compared
to those with sufficient vitamin D levels (25(OH)D >/= 75
nmol/L). Subjects were followed up with every 3 years for 6 years.
The authors conclude, "Low levels of vitamin D were
associated with substantial cognitive decline in the elderly
population studied over a 6-year period, which raises important new
possibilities for treatment and prevention."
"Vitamin D and risk of cognitive decline in elderly persons,"
Llewellyn DJ, Lang IA, et al, Arch Intern Med, 2010; 170(13):
1135-41. (Address: Public Health and Epidemiology Group, Peninsula
Medical School, University of Exeter, Royal Devon and Exeter
Hospital, Exeter EX2 5DW, England. E-mail:
Comment from Dr.DeSilva...it is important that
everyone know what their Vit. D level is. You can check your
Vit. D level by a simple blood test at your doctors office.