Karo Syrup contains sugar proteins that are specific to the Karo Syrup which helps to keep water in the stool and it helps to prevent the stool from becoming compact.
When the stool isn't compact it makes it easier to poop and is the reason Karo Syrup helps relieve constipation.
Karo Syrup is also good for relieving constipation in babies 1 month old or older by giving the baby 1 to 2 tablespoons of the Karo Syrup per day to relieve the babies constipation.