One aspect of the invention provides dietary fiber compositions comprisingeffective amounts of glucomannan, xanthan gum, and alginate to produce adesired viscosity. The invention also provides food products comprising aneffective amount of a dietary fiber composition. In other aspects, theinvention provides methods for preparing a dietary fiber composition or a foodproduct comprising a dietary fiber composition, and methods for promotingsatiety, promoting weight loss, lowering blood glucose levels, or loweringblood cholesterol levels in a mammal.
