A single red or green grape, which weighs approximately 0.2 ounces, has about 3 calories. A cup of grapes, which is about 5.3 ounces, has 104 calories.
There are approximately 100 calories in a single cup of red grapes. There are also about 1.4 grams of fiber per portion, which aids in regulating blood sugar.
In a cup of raw green grapes, there are 104 calories, according to the United States Department of Agriculture. A cup of green grapes is approximately 151 grams. In one serving of a cup, there are 27.33 grams of carbohydrates, 23.37 grams and 1.09 grams of protein.
Grapes contain antioxidants, such as lutein; flavonoids, such as myricetin; vitamins A and C; folate; potassium; iron; fiber and other nutrients that make them good for health. The antioxidants and flavonoids eliminate harmful free radicals from the body, while vitamins and minerals bolster body fun
Grapes most likely originated near the Caspian Sea, though no one knows for sure. They are an old plant, as certain species from the wild have been found at archaeological sites that have been dated back 130 million years.
The grape is one of the top 10 favorite fruits in the world along with mangoes and bananas, according to Top Food Facts. There are more than 8,000 varieties of grapes worldwide. These small fruits are available in purple, white, black, blue, green and golden.
Different types of grapes include pinot noir, muscadine, Thompson, sauvignon blanc and champagne grapes. Other types of grapes are chardonnay, catawba, concord and merlot. Many of these grapes are used in wines, either singly or blended, and they are also eaten raw.
Grapes originated around 6000 B.C. in what is known today as northern Iran between the Black and Caspian Seas. By 3000 B.C., grapes had reached Egypt and Phoenicia.
Assuming that the average grape weighs between 0.17 and 0.20 ounces, there are 80 to 94 individual fruits in a pound of grapes, without counting the weight of the stems. The actual weight of that quantity of grapes varies based upon the specific kind of grape and ripeness.
There are 100 calories in a single cup of red seedless grapes, states WebMD. Each cup is full of vital nutrients including antioxidants, vitamin C and vitamin K.