Forget sour. The news about the health value of grapes just keeps getting sweeter.

Researchers at the Mt. Sinai School of Medicine in New York published a paper in 2008 that suggests grape seed extract might well slow down the onset and degenerative effects of Alzheimer’s disease. Certain polyphenol compounds in grape seed extract thought to prevent plaque buildup in cells that otherwise leads to the brain impairment of Alzhemer’s.

The Mt. Sinai scientists used a grape seed extract product …