Psyllium Husk

I was reading the new edition of Mens Health and they have an article on supplements.  They list Psyllium Husk as the must have supplement for Diabetes.  Anyone else take this or have any experience with it?  I just saw my Dr last week or I would ask him.

I think that is just a source of fiber. Like Metamucil. 

I don't, but my wife swears by this stuff.  She's not the diabetic.  She drinks it down every night at bedtime in orange juice and is pleasantly relieved every morning, if you know what I mean.  I don't seem to have that trouble.