PGX (PolyGlycopleX) is a precise blend of naturally occurring watersoluble polysaccharides (fibers) that together, have highly unique and desirable properties for weight loss and overall good health. PGX is the result of extensive research by the University of Toronto and the Canadian Center for Functional Medicine.;PGX is the world's most viscous soluble fiber blend. What does viscous mean? Simply "to thicken". Once PGX is added to water or food it thickens or becomes viscous. The viscosity of soluble fiber is important as it relates directly to the overall health benefits.;The most important advantage of PGX over other soluble fiber products is that significantly less PGX is required to obtain the same important health benefits, including appetite control and reduced food cravings.;