As many of you know Jordan has chronic constipation. I stoped giving him lactulose because I'm convinced that, the medication is what caused his blood calcium to spike. So I've been able to control the constipation mostly through diet, however; once in a while he still has some difficulty. I remember reading that Marshmallow root works, but my question is does anyone know how much to give him? I know that slipery elm root works too, but I remember reading that there was some sort of shortage of slipery elm root, so I want to go with the one that is not in short supply. Any ideas?