It used to be that Dark Corn Syrup worked great for constipation in both adults and babies but now the commercially prepared dark corn syrup does not contain the chemical structure of the corn syrup in the old days that is what drew the fluid into the intestines which is what softened the stools and relieved the constipation.
Light corn Syrup however seems to still work great for baby constipation as well as adult constipation relief.
So if you're trying to get rid of constipation give light corn syrup a try however some people say that dark corn syrup still works for them but for some people it doesn't.
Light corn syrup is really what works for relieving constipation.