Grapes are not a notable source of nutrition to say. However, grape anthocyanin is said to have a positive effect on the health of the body such as eye health, and reducing the risk of heart related diseases. In terms of the balance between proteins, carbohydrates, and fat grapes are high in sugars that constitute its carbohydrate makeup. As long as you don't eat too much grapes, you shouldn't have much problems keeping your calorie intake down.
Image of Grapes
Additional Facts for Grapes
Nutrition facts for Grapes (1vine edible part 204g)
Nutrition info displayed such as percent meal value and PFC balance scales are based on a 1800 calorie diet for women between ages 18 and 29 years old weighing around 112 pounds and daily nutritional requirements.
【Calories and Macronutrient Composition】
（Percent Meal Value）
0.82g (3.28 Cal)
0.2g (1.8 Cal)
32.03g (128.12 Cal)
The calories in Grapes per 204g(1vine edible part) is 120 calories. Grapes is calculated to be 59Cal per 100 grams making 80Cal equivalent to 135.59g with 32.03g of mostly carbohydrates、0.82g of protein、0.2g of fat in 204g while being rich in vitamins and minerals such as Copper and Potassium.