Grapes contain natural sugar, but they’re considered a low glycemic index (GI) food. This means a single serving is unlikely to raise your blood sugar significantly. But raisins are another story.

The sugar in raisins becomes concentrated during the dehydration process. This raises their GI level to moderate. The American Diabetes Association encourages eating fresh fruit as part of a healthy diet. Dehydrated fruits like raisins should be eaten in moderation.

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Grapes are good for you. They are chock-full of antioxidants and nutrients. They also contain fiber and are a low-calorie food. Eating a diet rich in fruits like grapes may reduce your risk of:

heart attack
stroke
diabetes
cancer
obesity
Grapes are delicious and easy to eat but be aware of your serving size. If you eat too many in one sitting, the calories and carbs will add up fast. This may negate any health benefits and increase…
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How to incorporate grapes into your diet
Grapes are portable and fun to eat. It’s easy to wash a bunch and enjoy a healthy snack. Other ways to enjoy grapes are:

make juice out of fresh grapes
drink 100% grape juice with no added sugar
add grapes to a green salad or fruit salad
add chopped grapes to your favorite chicken salad recipe
eat frozen grapes for a refreshing summer snack

A 2014 study discovered that munching on raisins three times a day lowered blood pressure. Raisins contain more sugar and calories, and yet are less filling than grapes, so it’s best to eat them in moderation.

Imam Sadiq (A.S.) said: He (Imam Husayn) sees those, who come to his shrine and he knows them by their names, their fathers names and their ranks in the eyes of Allah, The Mighty, The Glorious, better than you know your own
children!

Grapes give you fiber
Grapes contain a small amount of soluble fiber. This may lower cholesterol and blood sugar levels. If you have bowel irregularity, eating more fiber may help.

Raisins are dehydrated grapes. They are packed with polyphenols. Raisins contain low amounts of water, so they actually have higher levels of antioxidants than fresh grapes.

Abdullah Ibn Sinaan says: I arrived in the presence of my master, Imam Sadiq (A.S.) on the day of Ashura and found him pale and grief‑stricken, with tears streaming from his eyes like falling pearls.

The Holy Prophet (S) (said to Fatimah (A.S.): On the Day of Judgment, you shall intercede for the ladies and I shall intercede for the men; every person who has wept over the tragedy of Husayn (A.S.), we shall take him by the hand and lead him into
Paradise.

Imam Sadiq (A.S.) said: One who weeps for Imam Husayn (A.S.), surely, the Imam (A.S.) observes him and seeks forgiveness for him and requests his holy fathers to (also) seek forgiveness for him.

Imam Sadiq (A.S.) said: The zaair (pilgrim) of Imam Husain (A.S.) turns back (from his pilgrimage) such that not a single sin remains upon him.

Polyphenol-rich foods like grapes may help protect against metabolic syndrome. Grape polyphenols, in particular grape seed polyphenols, may help improve:

cholesterol profile
blood pressure
blood sugar levels

Grapes are a good source of vitamin K. Vitamin K helps clot your blood. Vitamin K deficiency puts you at risk of hemorrhaging. It may also increase your risk of osteoporosis, although more studies are needed.

Grapes may help prevent metabolic syndrome
According to the National Heart, Blood, and Lung Institute, metabolic syndrome is the term for a group of risk factors that increase your risk of heart disease, diabetes, and stroke. These risk factors include:

a large waistline
high triglycerides
low HDL (“good”) cholesterol
high blood pressure
high blood sugar