inulin

noun

in·​u·​lin ˈin-yə-lən 

: a white, mildly sweet, indigestible polysaccharide that occurs chiefly in the roots or tubers of various plants (such as chicory or Jerusalem artichoke), that on hydrolysis yields levulose, and that is used as an additive in low-fat and low-sugar foods to improve the flavor and texture, and as a diagnostic agent in a test for kidney function

Examples of inulin in a Sentence

Recent Examples on the Web

Even the less flashy additions, like inulin (a prebiotic that supports the skin microbiome), keep skin soft, not squeaky. —Christa Joanna Lee, Allure, 2 May 2026

The plant is loaded with vitamins A, C and K, folate, calcium and potassium, plus prebiotic fiber (inulin, mostly in the roots) and antioxidants like beta-carotene and polyphenols. —Ryan Brennan, Charlotte Observer, 30 Apr. 2026

Dandelions are also known to contain prebiotic fiber (inulin, primarily in the roots) along with antioxidants like beta-carotene, polyphenols and flavonoids. —Ryan Brennan, Sacbee.com, 30 Apr. 2026

Some prebiotic fibers, such as inulin and fructooligosaccharides (FOS), can cause gas, bloating, or abdominal discomfort, says Wright. —Kirsten Nunez, Martha Stewart, 26 Apr. 2026

Word History

Etymology

probably from German Inulin, from Latin inula elecampane

First Known Use

1813, in the meaning defined above

Rhymes for inulin

• calmodulin

Medical Definition

inulin

noun

in·​u·​lin ˈin-yə-lən 

: 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 see oligofructose