Top 10 Health Benefits of Eating Grapes | If You Eat Grapes Daily What Happens In Your Body Top 10 health benefits of eating grapes and nutritional facts of red grapes. Grapes benefits for skin, heart, brain function, eyes, immunity system are really amazing.Grapes control and prevents cancer, high blood pressure, LDL cholesterol effectively. You will surprised to know how good Grapes are eating regularly. Red grapes juice is also good but try to eat raw grapes as to get better result. Nutritional facts: Red grapes are low in calories and are fat and cholesterol free. Red grapes contain resveratrol, a potent and powerful antioxidant. These are also good source of vitamin B-6, vitamin C, vitamin K, vitamin A, folate, zinc, copper, potassium, manganese and calcium.