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Nutrition Benefits of Red Grapes

by
author image Elizabeth Wolfenden
Elizabeth Wolfenden has been a professional freelance writer since 2005 with articles published on a variety of blogs and websites. She specializes in the areas of nutrition, health, psychology, mental health and education. Wolfenden holds a bachelor's degree in elementary education and a master's degree in counseling from Oakland University.
Nutrition Benefits of Red Grapes
Red grapes contain a number of essential vitamins and minerals. Photo Credit Liv Friis-Larsen/iStock/Getty Images

People throughout history have consumed grapes for their potential health benefits. In the beginning of the 20th century, a grape diet was thought to prevent or cure cancer and other illnesses. This belief may have stemmed from the findings of Johanna Brandt, a South American dietitian who claimed to have cured her stomach cancer by following the diet. However, no scientific evidence has proven that eating grapes, either as part of a grape diet or in conjunction with other healthy foods, can prevent or cure cancer or other illness. Despite this fact, red grapes do have several health benefits and make a nutritious snack.

Nutrition Facts

Red grapes are relatively low in calories and are fat and cholesterol free. A 1-cup serving of red grapes contains only 104 calories, yet still provides 1 g of protein and 1 g of fiber. However, this serving also contains 27 g of total carbohydrates, 23 g of which come from sugar.

Vitamins

Red grapes are a good source of several vitamins. One serving of red grapes offers 16 mg of vitamin C, which is about 27 percent of the daily value, based on a 2,000-calorie diet. It also contains 22 mcg of vitamin K and 0.4 mg of thiamin, which is about 28 percent and 27 percent of the daily value, respectfully. Red grapes also contain small amounts of vitamin E, vitamin A, vitamin K, pantothenic acid, vitamin B-6, folate, beta carotene and alpha carotene. These nutrients help your body processes function properly, and many vitamins, such as vitamin A, have antioxidant properties which may help reduce the risk for certain help problems.

Minerals

Red grapes are also rich in several minerals. A 1-cup serving of red grapes contains 288 mg of potassium, 0.2 mg of copper, 0.1 mg of manganese and 0.5 of iron -- 10 percent of the daily value of potassium and copper, 5 percent of the daily value of manganese and 1 percent of the daily value of iron. Red grapes also contain small amounts of calcium, magnesium, zinc and selenium.

Resveratrol

Red grapes contain resveratrol, which is a polyphenol antioxidant. This antioxidant is concentrated in the skins of red grapes. A 1-cup serving of red grapes contains about 160 g of resveratrol, according to the Linus Pauling Institute. Resveratrol seems to have anti-inflammatory, antioxidant and antiestrogenic properties, and may activate the enzymes of the liver that rid the body of unwanted chemicals, according to the American Cancer Society. It is possible that resveratrol may also play a role in preventing cancer and heart disease, as Brandt believed, and could extend a person’s life, but more research needs to be conducted to confirm these theories.

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