Day 6 of 15: Glutathione + Parkinson's Disease This is one of the most important posts in this series and one of the most urgently needed. Glutathione in the substantia nigra the Central nervous system uptake of intranasal glutathione in Parkinson's disease npj Parkinson's Disease Dr. David Perlmutter explains why good metabolism is the key to excellent brain health. There's one supplement I get asked about almost daily: creatine. While it's often associated with athletes and muscle growth, research is now revealing its potential benefits for the brainespecially in the context