chicory root fiber

About

What it is and where it shows up.

Chicory root fiber is a naturally occurring soluble dietary fiber (primarily inulin, a polydisperse β(2,1)-fructan) extracted from the roots of Cichorium intybus by hot water diffusion; it is used as a prebiotic, fat replacer, sugar reducer, and texture modifier in functional foods. Because its β-linkages are not susceptible to mammalian digestive enzymes, it reaches the colon largely intact and acts as a fermentation substrate for beneficial gut bacteria including Bifidobacterium and Lactobacillus spp.

Safety summary

The regulatory and scientific consensus.

Chicory root fiber is broadly recognized as safe with no established ADI; at doses above approximately 10–15 g/day it can cause gastrointestinal side effects such as bloating, flatulence, and loose stools, particularly in sensitive individuals. Rare cases of IgE-mediated inulin allergy, including at least one report of anaphylaxis in a child, have been documented. No genotoxic, carcinogenic, or systemic safety concerns have been identified by any major regulatory body.

Regulatory landscape

What food-safety regulators have decided.

Jurisdiction	Status	Note
Health Canada (Canada)	Approved	Health Canada Food Directorate assessed and approved chicory inulin as a dietary fiber (2013); authorized for use in all unstandardized foods in Canada.source
EFSA (European Food Safety Authority) (European Union)	Approved	EFSA NDA Panel approved health claim: 'Chicory inulin contributes to maintenance of normal defecation by increasing stool frequency' at a minimum of 12 g/day (Opinion 2015). Chicory inulin is used as a food ingredient rather than a regulated food additive and therefore carries no E number in the EU additive framework.source
FSSAI (Food Safety and Standards Authority of India) (India)	Approved	Chicory (Cichorium intybus) is a recognized food ingredient in India regulated by FSSAI; it is permitted in coffee-chicory beverage mixtures and acknowledged as containing inulin. Chicory root inulin as an isolated dietary fiber ingredient falls under FSS (Health Supplements, Nutraceuticals) Regulations; no specific ban or restriction on chicory root fiber/inulin has been identified.source
FDA (Food and Drug Administration) (United States)	Approved	Chicory-derived inulin has GRAS status in the USA since 2003 (GRN 118). FDA additionally recognizes inulin-type fructans derived from chicory root as qualifying dietary fiber for Nutrition Facts labeling under 21 CFR (2018 final guidance). No maximum daily intake established.

Who should approach with care

Whose guidance would steer them away.

Ibs — Inulin is a fructan classified as a high-FODMAP ingredient; colonic fermentation can trigger or worsen bloating, flatulence, cramping, and loose stools in individuals with irritable bowel syndrome.

Ibd — High-dose inulin fermentation may exacerbate intestinal inflammation in individuals with active inflammatory bowel disease; physician guidance is recommended before supplementation.

Infants — Regulatory safety assessments for chicory inulin are primarily based on adult populations; use in foods for very young infants should follow specific infant nutrition regulations and pediatric guidance.

Other — Rare IgE-mediated inulin allergy, including at least one documented case of anaphylaxis in a child, has been reported; individuals with known sensitivity to chicory or other Asteraceae-family plants should use caution.

Research citations

The sources behind this verdict.

1EFSA. Safety of inulin-propionate ester as a novel food pursuant to Regulation (EU) 2015/2283, 2025. pmc.ncbi.nlm.nih.gov
2FDA. Guidance for Industry: The Declaration of Certain Isolated or Synthetic Non-Digestible Carbohydrates as Dietary Fiber on Nutrition and Supplement Facts Labels, 2018. fda.gov
3PubMed. Chemical Composition and Nutritive Benefits of Chicory (Cichorium intybus) as an Ideal Complementary and/or Alternative Livestock Feed Supplement, 2017. pmc.ncbi.nlm.nih.gov
4EFSA. Scientific Opinion on the substantiation of a health claim related to 'native chicory inulin' and maintenance of normal defecation by increasing stool frequency, 2015. efsa.europa.eu
5FDA. GRAS Notice No. GRN 000118 – Chicory Inulin (Orafti® Inulin, BENEO-Orafti), 2003. hfpappexternal.fda.gov

Independently researched5 citations