The perceived benefits, agreed upon by most physicians, come
from multiple aspects of the grape including plant nutrients called flavonoids found in grape skins (as
well as other fruits and vegetables). Both red and white wine contain
flavonoids; however, since red wine is typically produced by fermentation in
the presence of the grape skins, red wine has been observed to contain higher
levels of flavonoids, and other antioxidants such as resveratrol.
Cheers,
Michael
