inulin

in·u·lin

noun \ˈin-yə-lən\

Definition of INULIN

: a white mildly sweet plant polysaccharide that resists digestion in the stomach and small intestine, is extracted commercially especially from the roots and rhizomes of composite plants (as chicory), and is used as a source of levulose, as a diagnostic agent in a test for kidney function, and as a food additive to improve the flavor and texture of low-fat and low-sugar processed foods