Given a growing body of evidence linking the development of Alzheimer’s disease and vascular dementia to vitamin D deficiency, a new paper suggests more research is needed to establish a possible causation.

The existing evidence centers around the fact that low serum levels of vitamin D have been associated with increased risk for cardiovascular diseases, diabetes, depression, cavities, osteoporosis and periodontal disease.

All of these conditions are considered either a risk factor for dementia or may precede its onset.

In addition to that, scientists believe the vitamin plays a role in inflammation reduction as well as brain development and function.

Based on these factors, Dr William B. Grant of the Sunlight, Nutrition and Health Research Center – writing in the current issue of the Journal of Alzheimer’s Disease – suggests studies of dementia and prediagnostic serum vitamin supplementation are warranted.

He says the elderly are generally vitamin D deficient, and therefore those over the age of 60 should consider having their serum vitamin D tested and aim to maintain it at the level of at least 30 ng/mL but preferably over 40 ng/mL.

Moreover, like many other practitioners he suggests using nutritional supplements that contain between 1000 – 2000 IUD of vitamin D3 or spending more time in the sun.

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