Not sure it is really a 'disease' per se, but my son tends to be anemic even eating a well balanced diet. He is actually by far my best eater of my three kids. Anyway, if I give him a daily multivitiman with iron, he gets constipated. So I have been doing the multivitiman along with juice with Fibersure it is to kind of balance things out. Does anyone have a better suggestion? Are there any iron suppliments out there that don't cause constipation? Or is that just the way it is? When I talked to our doctor the other day about it, her best suggestion was to push raisins and prunes. Great, but I can only get a 5 year old to eat so many raisins and prunes!