Here’s a look at how many varieties of grapes exist, why the fruit is so good for you and when moderation still matters.

The most common varieties are green, black and red grapes, each with unique nutritional qualities. Black and red grapes are particularly rich in antioxidants like resveratrol, while green grapes offer ...

When you walk down the grape aisle at your local grocery store, you'll likely encounter a variety. From the common red and green seedless options to the super-sweet Cotton Candy variety. But how about ...