Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Inulin is a prebiotic fiber found naturally in plants such as chicory root, onions, and garlic. Its use in supporting colitis, particularly ulcerative colitis, is primarily justified by emerging scientific evidence rather than traditional medicine. Inulin serves as a fermentable substrate for beneficial gut bacteria, especially Bifidobacteria and Lactobacilli, which produce short-chain fatty acids (SCFAs) like butyrate through fermentation. SCFAs have anti-inflammatory properties and support the integrity of the gut mucosal barrier, both of which are relevant in inflammatory bowel diseases (IBD) such as colitis.

Clinical studies and animal models have demonstrated that inulin supplementation can positively modulate the gut microbiome, increase SCFA production, and reduce markers of inflammation. Some small human trials have reported improvements in symptoms and reductions in inflammatory markers in patients with ulcerative colitis or other forms of colitis. However, the overall quality and quantity of human clinical data remain limited, and results can be variable depending on disease severity, type of colitis, and individual responses.

Consequently, while the mechanistic rationale is strong and preliminary data are promising, inulin is not yet a standard therapy for colitis. It may be considered as an adjunct to conventional treatment under medical supervision, especially in mild to moderate cases. Further large, well-designed clinical trials are needed to confirm efficacy and safety. Therefore, the evidence is rated as moderate (3/5) and is based on scientific—not traditional—justification.

More about inulin
More about Colitis

Other ingredients used for Colitis

Other health conditions supported by inulin

Products containing inulin

Nature's Sunshine AIVIA Performance Probiotic
Nature's Sunshine Detox Basics (Best used by 7/31/25)
Nature's Sunshine Bacillus Coagulans (NutriBiome)
Nature's Sunshine Eleven Elevated (NutriBiome)
Nature's Sunshine Probiotic Eleven
Nature's Sunshine Solstic Revive
Nature's Sunshine Ultrabiome DTX