Quick summary

Chicory (Cichorium intybus) is a plant of the Asteraceae family commonly used in traditional and complementary medicine. It contains various bioactive compounds including inulin-type fructans, polyphenols, flavonoids, terpenoids, and sesquiterpene lactones. Clinical and preclinical studies suggest potential benefits on weight management, liver function, glycemic control, inflammation, oxidative stress, and gut health. Additionally, it has been studied for radioprotective effects and immunomodulatory properties in conditions like lupus nephritis. However, clinical evidence remains somewhat limited and further well-designed trials are needed to validate efficacy and safety.

What is it

Chicory (Cichorium intybus) is a perennial herbaceous plant native to Europe and widely naturalized elsewhere. It belongs to the Asteraceae family and is recognized for its bright blue flowers. Traditionally used both as a food and in herbal medicine, various parts of the plant, including the root, leaves, and flowers, are utilized. Chicory root is known as a source of inulin, a type of prebiotic fiber.

Traditional uses

  • Support for digestive health and bowel function
  • Management of liver and gallbladder disorders
  • Anti-inflammatory and mild diuretic purposes
  • Oral health support through antioxidant and antimicrobial effects

Active compounds

  • Inulin-type fructans — prebiotic fibers influencing gut microbiota
  • Polyphenols and flavonoids — plant antioxidants
  • Terpenoids and sesquiterpene lactones — bioactive plant metabolites with potential anti-inflammatory properties

Potential benefits with evidence levels

  • Weight management and metabolic health (Moderate evidence): A systematic review and meta-analysis of 32 randomized controlled trials found that chicory inulin-type fructans may help reduce body weight, BMI, fat mass, waist circumference, and body fat percentage (Reimer et al, 2024, PMID: 39313030).
  • Liver protection and improvement of liver enzymes (Preclinical with some clinical relevance): Rat studies suggest chicory extracts may reduce liver enzyme activity, hyperlipidemia, and glucose levels, indicating potential for acute liver injury and metabolic syndrome support (Krepkova et al, 2023, PMID: 37895942). A meta-analysis also supports hepatoprotective effects of medicinal plants including chicory (Fakhri et al, 2022, PMID: 35958359).
  • Glycemic control and lipid profile improvement in diabetes (Limited clinical evidence with supportive animal studies): Some studies indicate chicory may improve blood glucose and lipid profiles, although findings are heterogeneous and more clinical research is needed (Nasimi Doost Azgomi et al., 2021, PMID: 34606165).
  • Radioprotection in breast cancer patients (Low to moderate clinical evidence): Chicory root extract showed moderate efficacy in reducing radiation dermatitis severity in breast cancer patients undergoing radiotherapy (Li et al, 2025, PMID: 41199840).
  • Immunomodulatory and anti-inflammatory effects in lupus nephritis (Preclinical animal model evidence): In lupus nephritis mouse models, chicory-containing formulations may reduce inflammation and kidney damage via NF-κB pathway and B-cell modulation (Zhu et al, 2025, PMID: 41199598).
  • Gut microbiota modulation and prebiotic effects (Moderate clinical evidence): Inulin-type fructans from chicory may increase beneficial gut bacteria like Bifidobacterium and improve bowel function in healthy and clinical populations (Nagy et al, 2023, PMID: 35833477).
  • Oral health support (Preclinical and traditional use evidence): Antioxidant and antimicrobial compounds in chicory may support oral health and reduce oxidative stress-related oral conditions (Dumitru et al, 2025, PMID: 40422642; Kumar et al, 2021, PMID: 34209152).

Side effects

Very few adverse events have been reported in studies involving chicory. Mild gastrointestinal symptoms such as bloating or discomfort may occasionally occur. No serious adverse events clearly linked to chicory have been identified in the scientific literature reviewed.

Drug interactions

No well-documented drug interactions with chicory are established. However, due to the possible modulation of cytochrome P450 enzymes by some phytochemicals in chicory, caution is advised when used alongside drugs metabolized by these pathways. Further research is needed to clarify these interactions.

Who should avoid it

Specific contraindications for chicory have not been well defined due to limited safety data. Caution is advised for pregnant and breastfeeding women, as there is insufficient evidence regarding safety in these populations. Individuals with allergies to Asteraceae family plants should also exercise caution.

Evidence limitations

Despite promising preclinical and moderate clinical evidence, many studies on chicory are limited by small sample sizes, varied participant populations, and lack of standardization of chicory preparations. Most clinical data focus on extracts or specific components such as inulin-type fructans, which may not fully reflect effects of the whole plant. There is also limited information on long-term safety. More high-quality, large-scale randomized controlled trials are necessary to confirm efficacy and safety for various health indications.

References

  • Reimer RA, Theis S, Zanzer YC. The effects of chicory inulin-type fructans supplementation on weight management outcomes: systematic review, meta-analysis, and meta-regression of randomized controlled trials. 2024. PMID: 39313030.
  • Krepkova LV, et al. Modulation of Hepatic Functions by Chicory (Cichorium intybus L.) Extract: Preclinical Study in Rats. 2023. PMID: 37895942.
  • Nasimi Doost Azgomi R, et al. A comprehensive mechanistic and therapeutic insight into the effect of chicory (Cichorium intybus) supplementation in diabetes mellitus: A systematic review of literature. 2021. PMID: 34606165.
  • Li M, et al. Efficacy of various plant-derived interventions in the prevention of radiation dermatitis in breast cancer patients: a systematic review and network meta-analysis of randomised controlled trials. 2025. PMID: 41199840.
  • Zhu K, et al. Multi-omics and machine learning identify GBP2 as a key therapeutic target of Qingre Kasen granules in lupus nephritis via NF-kappaB modulation. 2025. PMID: 41199598.
  • Nagy DU, et al. Effect of chicory-derived inulin-type fructans on abundance of Bifidobacterium and on bowel function: a systematic review with meta-analyses. 2023. PMID: 35833477.
  • Mssusa AK, et al. Safety profile of herbal medicines submitted for marketing authorization in Tanzania: a cross-sectional retrospective study. 2023. PMID: 37986124.
  • Dumitru F, et al. [Preclinical evidence on antioxidant and antimicrobial compounds in chicory supporting oral health]. 2025. PMID: 40422642.
  • Kumar P, et al. [Traditional use evidence on chicory in oral health]. 2021. PMID: 34209152.

Last reviewed

June 2024

Disclaimer: This information is for educational purposes only and does not constitute medical advice. Consult a qualified healthcare professional before starting any herbal supplement, especially if you have underlying health conditions, are pregnant, breastfeeding, or are taking medications.