Grapes can actually help those who have constipation by loosening up stool. Because the skin of grapes has so much roughage, it cannot cause constipation. Although grapes may not work to relieve constipation for everyone, they have been known to help certain people with this problem.
Grapes also have a lot of important vitamins, minerals, and nutrients in them which are important for our bodies to get enough of. If you think that you could use more of vitamin C or B as well as potassium, it might be a good idea to start thinking abut including more grapes in your diet.