Guar Gum
Guar gum is derived from the ground endosperm of the guar plant. It is a gelatinous substance from the legume family that contains protein and polysaccharides. There is currently no official AAFCO definition for guar gum but is considered GRAS (generally recognized as safe).
Guar gum is used as an emulsifier, thickener, and stabilizer in foods. Several studies have found significant decreases in cholesterol levels after administration of guar gum in humans. These decreases are thought to be a function of the high soluble fiber content of guar. Guar gum is highly digestible and has a low caloric content.
http://www.innovapet.com/products/default.asp?id=1606
I haven't heard anything negative about it....so far.
