There is research to suggest that magnesium deficiencies may be linked to Parkinson's disease. In this study published in December of 2015 magnesium was found to be important in maintaining the health of mitochondria ( the energy producers of the cell ) 

Approximately 50 percent of my patients test low for magnesium and need to be supplemented.

Intracellular magnesium level determines cell viability in the MPP(+) model of Parkinson's disease 

The Lee Clinic offers pharmaceutical grade magnesium for people requiring supplementation.