Vity D deficiency was seen in in 17.6% of patients with Parkinson Disease versus 9.3% of controls. Deficient cases had higher parkinsonism severity ratings.
Unrecognized vitamin D3 deficiency is common in Parkinson disease
Hongliu Ding, MD, PhD, MPH, Kaltra Dhima, Kaitlin C. Lockhart, Joseph J. Locascio, PhD, Ashley N. Hoesing, Karen Duong, Ana Trisini-Lipsanopoulos, Michael T. Hayes, MD, U. Shivraj Sohur, MD, PhD, Anne-Marie Wills, MD, Brit Mollenhauer, MD, Alice W. Flaherty, MD, PhD, Albert Y. Hung, MD, PhD, Nicte Mejia, MD, Vikram Khurana, MBBS, PhD, Stephen N. Gomperts, MD, PhD, Dennis J. Selkoe, MD, Michael A. Schwarzschild, MD, PhD, Michael G. Schlossmacher, MD, Bradley T. Hyman, MD, PhD, Lewis R. Sudarsky, MD, John H. Growdon, MD and Clemens R. Scherzer, MD
Neurology in Press
http://www.neurology.org/content/early/2013/09/25/WNL.0b013e3182a95818.abstract
All parkinson patients should take 1000- 5000 u/day Vitamin D or get their levels tested