Plenity, our superabsorbent hydrogel, has very different structures and properties than fiber. Plenity particles have a three-dimensional structure, and when hydrated, they produce thousands of small individual, solid gel pieces that are similar in size and firmness to solid ingested vegetables and fruits (but without any calories or nutrient content). Dietary fibers, on the other hand, have a linear structure and carry water only on their surface when hydrated.