Grapes are fruit berries from woody vines that can be eaten raw or used for jams, jellies, juices, wine vinegar, grape seed extracts or raisins. Grapes can be crimson, black, dark blue, yellow, green, orange, and pink, while white grapes are actually green in color. Grapes are rich in reservatrol, a health-promoting ingredient known to inhibit various conditions such as cancer, heart disease, degenerative nerve disease, viral infections, and the mechanisms of Alzheimer's disease.