Low levels of vitamin D were linked to poor brain function, according to a long study of older people attending a university’s ‘Cognitive Problems’ clinic.

The study compared their blood levels of vitamins B12 and D3 with the results of 'mini-mental state examination’ (MMSE) tests.* It found a strong correlation between low vitamin D3 and poor MMSE results, but no correlation between MMSE results and B12 levels.

* a widely accepted measure of a person’s orientation (awareness of time/day/season), registration (names of objects, recollection of objects), attention, ability to calculate, and language/ communication skills

View Vitamin Research Products' vitamin D3 1,000iu supplement