Grapes are low in calories so that makes grapes good for weight loss.
Grapes are very nutritious and can help keep your stomach full while reducing the amount of calories you consume and the less calories you consume the more you lose weight.
Eating a bowl of grapes can help aid in weight loss but eating too many grapes could increase your weight because of the sugar content of the grapes.
I love grapes and eat a bowl of grapes every few days or so and I have also noticed and increase in energy from the grapes.
When I was on my weight loss diet 5 years ago I ate grapes along with some salad to help keep my stomach full and I lost weight because I didn't eat any other foods that could increase my weight due to the low calories of the grapes.
Grape are also good for your heart health, may prevent heart disease, heart attacks, strokes and grapes may even prevent cancer.
Just don't eat too many grapes because you can get stomach pain and diarrhea but in moderation the grapes are very healthy.