Over half of all Parkinson's patients have insufficient levels vitamin D according to a recent study from Emory University. This finding further supports the hypothesis that inadequate vitamin D levels may contribute to neurodegenerative disorders in general, such as Parkinson's disease and Alzheimer's disease. Parkinson's patients were found to be the more likely than Alzheimer's patients to be vitamin D deficient, while both groups are more likely to be vitamin D deficient than healthy adults.
The full results of this study were published in the of Archives of Neurology:
Source: Dietary Supplement Information Bureau