A previous study found that individuals with diabetes had double the risk of developing Parkinson’s disease, and that the use of the diabetic treatment, sulfonylureas, increased the risk by 57%.
A recent study found that if you combine another type of diabetic treatment, metformin, there is no increased risk of developing Parkinson’s disease.
The study found that metformic helped to protect the brain from neuro-degeneration. This could potentially also help in preventing dementia.
Read more at Monash University