Vitamin D Deficit Key in Age-Related Morbidities : Conditions such as dementia and overactive bladder may also be associated with low levels of the vitamin.

A poster that was presented at the conference showed that higher scores on the Mini-Mental State Examination in 32 patients in a memory clinic were significantly and positively correlated with higher vitamin D concentrations. In the observational study, 25(OH)D levels below 30 ng/mL—the generally recommended cutoff for vitamin D sufficiency—were detected in 25 patients.

The active vitamin D compound 1,25(OH)D is known to increase levels of choline acetyltransferase, which is involved in the synthesis of the neurotransmitter acetylcholine.