Low vitamin D levels 'increases risk of Parkinson's'. Or do they?

Media article here:

http://www.dailymail.co.uk/health/article-1294275/Low-vitamin-D-levels-increases-risk-Parkinsons.html

Why it is probably bullshit:

The numbers in this study are crazy. The researchers admit that their population as a whole was vitamin D deficient yet when only 50 out of 3,173 people (1.6%) got Parkinson's over a 29 year period, they conclude that Parkinson's is caused by low levels of vitamin D! Words fail me beyond that point.

From http://john-ray.blogspot.com/

Posted via email from Garth's posterous