Memory impairment from vitamin D deficiency
The primary function of vitamin D is to regulate calcium metabolism. Vitamin D helps your body absorb 
dietary calcium and deposit calcium in bones. Interestingly, recent medical studies have shown that Vitamin D does more than just regulate calcium. Vitamin D deficiency may actually be related to dementia and memory impairment. This is according to a study published in Journal of Neurology, Neurosurgery and Psychiatry.
The study authors report that lower vitamin D levels in older men were associated with slower brain functions.
Authors analyzed neurological test results from more than 3,300 men ages 40 to 79 years.
The results of the study showed a relationship between men with a low level of vitamin D, less than 35 nmol/L, and worse cognitive function.
Although there are some limitations in this study, the findings are very intriguing and argue for the need to better clarify the influence of vitamin D on brain function. Further studies are needed to show whether the results of the neurologic testing improve with vitamin D replacement supplements.
Cristopher Geiler M.D.
Reference
J Neurol Neurosurg Psychiatry. Published online May 21, 2009.
Posted on June 5, 2009
