Inulin is the additional ingredient...sounds very interesting. If you have a chance could you post all the ingredients that are in it...the site doesn't give the whole list.
Also...I know it's hard to do...but can you describe the taste of III? If I remember right the Bulking Agent II had a pretty strong oniony taste and I know the Special Bulking Agent...do they call that Bulking Agent I?...tastes predominantly of clove.