A specific class of diabetes drug appears to lower people's risk for dementia and Parkinson's disease, a new study shows.

New research has found that those who consume more foods rich in flavonoids, such as berries, tea, red wine and dark chocolate, could lower their risk of dementia.

Scientists found a 22 percent lower risk of any dementia and Parkinson's among a group taking SGLT2 inhibitors for type 2 diabetes.

Gliflozins, another name for sodium-glucose cotransporter-2 (SGLT2) inhibitors, were the subject of the investigation. By encouraging the kidneys to eliminate sugar from the body through urine, they reduce blood sugar.