Add Yahoo as a preferred source to see more of our stories on Google. All grape colors have similar nutrient profiles, offering fiber, potassium, vitamin A, and antioxidants—though purple grapes have ...

Karen Collins is a registered dietitian with the American Institute for Cancer Research. Is it true that you need to choose red grapes in order to get resveratrol, the compound found in red wine? That ...

The variation in grape color is due to the genes responsible for the synthesis of red pigments (anthocyanins.) Through these variations, the varieties Pinot blanc and Pinot gris arose from Pinot noir.

When temperatures climb above 100 degrees Fahrenheit, grape clusters can heat to nearly 140 degrees in direct sunlight. The berries shrivel. Their color compounds break down. Yields drop. And for ...

Napa’s grapes are one defining step closer to becoming this year’s wine, with the first signs of veraison having been spotted throughout vineyards here late last week. A decisive moment in what will ...