Good grapes are sublime. Mediocre grapes are the kind of food you eat out of obligation. You bought them, and it would be a waste to let them rot in the fridge, but that's it. Bad grapes are, well, ...

From antioxidants to flavor profiles, here’s how each type of grape stacks up. All grape colors have similar nutrient profiles, offering fiber, potassium, vitamin A, and antioxidants—though purple ...