Inulin for Horses: Gut Health Research
Inulin for horses is a natural prebiotic derived from Jerusalem artichoke that supports gut health, digestion, metabolic regulation, and immune function. Research shows that controlled supplementation promotes a healthier hindgut microbiome, improves fermentation, and supports overall equine well-being.
Inulin for Horses and Gut Microbiota
• Supplementing with Jerusalem artichoke meal, rich in inulin-type fructans, modifies the hindgut microbiota.
• Beneficial saccharolytic bacteria increase, improving fermentation patterns and promoting a healthier gut environment (Glatter et al., 2019).
Inulin for Horses: Digestion and SCFA Production
• Inulin and fructooligosaccharides (FOS) are partially digested in the stomach but reach the hindgut to act as prebiotics.
• Their fermentation stimulates production of short-chain fatty acids (SCFAs), particularly butyrate, which supports gut integrity and overall health (Bachmann et al., 2021).
• In vitro gas production studies show that the microbiota adapts to inulin/FOS, allowing controlled fermentation without excessive gas formation when doses are appropriate (Bachmann et al., 2020).
Inulin for Horses and Metabolic Health
• Feeding Jerusalem artichoke meal moderates blood glucose and insulin peaks in healthy mares, supporting metabolic regulation and insulin sensitivity (Glatter et al., 2017).
Immune and Gut Barrier Benefits
• Inulin-type fructans enhance beneficial bacteria such as Bifidobacterium and Lactobacillus, supporting mucosal immunity and gut barrier integrity (Wilson & Whelan, 2017).
• Additional reported benefits include:
– Anti-inflammatory effects
– Improved mineral absorption (e.g., calcium, magnesium)
– Enhanced bowel motility
– Positive immune modulation (Qin et al., 2023)
Dose and Individual Sensitivity
• High or uncontrolled intake of fructans, particularly from pasture or in insulin-resistant ponies, can increase amine production and risk of laminitis.
• Gradual introduction and low-to-moderate controlled dosing are essential for safe and effective use (Bailey et al., 2007, 2008).
Conclusions
When used carefully in horses, inulin:
• Supports a healthy gut microbiota
• Promotes SCFA production (e.g., butyrate)
• Improves metabolic stability with moderated glucose and insulin responses
• Enhances gut barrier and immune function
• Serves as a gentle, effective prebiotic when introduced gradually and dosed appropriately
References
• Glatter M, Borewicz K, van den Bogert B, Wensch-Dorendorf M, Bochnia M, Greef JM, Bachmann M, Smidt H, Breves G, Zeyner A. Modification of the equine gastrointestinal microbiota by Jerusalem artichoke meal supplementation. PubMed 31393892
• Bachmann M, Glatter M, Bochnia M, Greef JM, Breves G, Zeyner A. In Vitro Gas Production from Batch Cultures of Stomach and Hindgut Digesta of Horses Adapted to a Prebiotic Dose of Fructooligosaccharides and Inulin. J Equine Vet Sci. 2020 Jul;90:103020. PubMed 32534784
• Bachmann M, Glatter M, Bochnia M, Greef JM, Breves G, Zeyner A. Degradation of Monosaccharides, Disaccharides, and Fructans in the Stomach of Horses Adapted to a Prebiotic Dose of Fructooligosaccharides and Inulin. PubMed 34607684
• Glatter M, Bochnia M, Goetz F, Gottschalk J, Koeller G, Mielenz N, Hillegeist D, Greef JM, Einspanier A, Zeyner A. Glycaemic and insulinaemic responses of adult healthy warm-blooded mares following feeding with Jerusalem artichoke meal. J Anim Physiol Anim Nutr (Berl). 2017 Jun;101 Suppl 1:69-78. PubMed 28627061
• Bailey SR, Menzies-Gow NJ, Harris PA, Habershon-Butcher JL, Crawford C, Berhane Y, Boston RC, Elliott J. Effect of dietary fructans and dexamethasone administration on the insulin response of ponies predisposed to laminitis. PubMed 17975996
• Crawford C, Sepulveda MF, Elliott J, Harris PA, Bailey SR. Dietary fructan carbohydrate increases amine production in the equine large intestine: implications for pasture-associated laminitis. PubMed 17591708
• Wilson B, Whelan K. Prebiotic inulin-type fructans and galacto-oligosaccharides: definition, specificity, function, and application in gastrointestinal disorders. J Gastroenterol Hepatol. 2017 Mar;32 Suppl 1:64-68. PubMed 28244671
• Qin YQ, Wang LY, Yang XY, Xu YJ, Fan G, Fan YG, Ren JN, An Q, Li X. Inulin: properties and health benefits. Food Funct. 2023 Apr 3;14(7):2948-2968. PubMed 36876591