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Gut Supplements for Horses
View a list of the best gut supplements for horses in Mad Barn’s equine feed database. This category includes commercial digestive support products formulated for stomach health, hindgut function, microbial balance, manure quality, feed efficiency, and overall digestive comfort.
Compare ingredient lists, guaranteed analyses, feeding directions, and nutritional profiles for equine gut supplements, including probiotics, prebiotics, yeast cultures, digestive enzymes, buffers, psyllium, amino acids, lecithin, omega-3s, and herbal blends. Use this database to evaluate products for horses on high-grain diets, in training, under stress, travelling, changing feed, or needing additional stomach and hindgut support.
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Gut Supplements
Optimum Digestive Health Pellets (Mad Barn)
Digestion
Feed Efficiency
Gut Health
ProbioticOptimum Digestive Health from Mad Barn is a probiotic and prebiotic supplement designed to support hindgut health in the horse. It helps to maintain a stable microflora and promote immune health.
Optimum Probiotic (Mad Barn)
DigestionGut Health
ImmunityProbioticMad Barn's Optimum Probiotic is a pure 5-strain probiotic supplement in a powdered format. It provides 20 billion CFU per serving of L. acidophilus, L. fermentum, L. casei, L. plantarum, and L. farciminis.
Psyllium (Mad Barn)
FiberGut Health
Hindgut
StressPsyllium by Mad Barn is a powdered psyllium supplement that supports digestion and gut health in horses. It absorbs water in the digestive tract, helping support normal gut motility and manure consistency, and is beneficial for horses exposed to sandy conditions, environmental stress, or dietary changes.
Threonine (Mad Barn)
Amino AcidGut Health
Muscle
ToplineThreonine is an essential amino acid that is required to be supplied in equine diets as it cannot be synthesized endogenously. Threonine supplementation may improve nutrient absorption.
Visceral+ (Mad Barn)
DigestionGut HealthImmunityProbiotic
Ulcers
YeastVisceral+ by Mad Barn is a pelleted gut supplement designed to support stomach and hindgut health in horses. It helps maintain normal digestive function, supports gastric comfort, and helps maintain the immune system.
Triple Play (Equi-lete)
Gut Health
Health
Performance
Weight IssuesTriple Play by Equi-lete is a vitamin and mineral supplement intended to support gastric health, performance and body condition in hard keepers, performance horses and breeding stock.
Tuffoal (TRM)
Digestion
Foal
GrowthGut HealthTuffoal from TRM is a liquid supplement which supports normal gut motility in growing and adult horses. Tuffoal contains kaolinitic clay and pectin for gut motility, as well as fructo - oligosaccharides to stimulate the gastrointestinal tract.
Turmeric (Dodson & Horrell)
Coat QualityDigestion
Joints
Skin + HairTurmeric from Dodson & Horrell is a powdered supplement that is intended to support healthy skin, coat, digestion, and joints. This product contains turmeric which has antioxidant properties and black pepper.
U-7 Gastric Aid (Finish Line Horse Products)
DigestionGut HealthHindgut
NutrientsThis equine supplement from Finish Line Horse Products is meant to support digestive health and the health of the foregut and hindgut.
U-Gard Pellets (MannaPro)
DigestionGut Health
HerbUlcersU-Gard® Pellets is a gut health supplement for performance horses with gastric ulcers. It contains calcium and magnesium which can buffer stomach acid to increase gastric pH.
Ulc-R-Aid (AniMed)
Gut HealthImmunity
Mineral BalanceUlcersUlc-R-Aid from AniMed is a powdered supplement that is supposed to support horses prone to gastric ulcers. It aids in immune function and contains Colostrashield.
Ulcer Armour+ (High Horse)
Gut HealthHealthHerbPerformanceUlcer Armour by High Horse is a supplement intended to support gastric health. It contains herbal ingredients such as aloe vera and slippery elm bark.
Ulcer Mix (Herbs for Horses)
HealthHerbHindgutImmunityUlcer Mix from Herbs for Horses is intended to assist in the healing of gastric ulcers. This supplement is intended to calm the horses' stomach in times of stress.
Ulcer Protect (CEN)
DigestionGut HealthHealthUlcersUlcer Protect from CEN is a stomach supplement that can help protect the gut from ulcers, and aims to reduce the severity of present ones. It is meant to support a healthy gut lining and increase absorption.
Ulceraser (Equine Elixirs)
FlavorGut HealthImmunityUlcersUlceraser from Equine Elixirs is a palatable supplement that is meant to support the entire digestive tract of horses. Mainly, it is used for horses prone to digestive upset or ulcers from training, traveling, stress, or diet related issues. It can also support immunity.
UlcerGard (Merial)
DigestionGut HealthHealthUlcersUlcerGard from Merial is a non-prescription, FDA-approved omeprazole paste for treating and preventing gastric ulcers. It comes in a cinnamon-flavored paste. It is designed to be fed once daily as needed, and each syringe contains four doses.
UlcerPLUS (Enviro Equine)
AntioxidantGut HealthPerformanceUlcersUlcerPLUS by Enviro Equine is a liquid supplement containing Sea Buckthorn berry pulp and pure Aloe Vera leaf juice. It is intended to support digestive and immune health in horses.
ULS-Gard Pellets (Equine America)
DigestionGut HealthNutrientsProbioticULS-Gard Pellets from Equine America is a stomach and gastrointestinal tract supplement. It is meant to support normal pH, proper function and contains pro- and prebiotics.
Ulsus (Peak Performance Nutrients)
DigestionGut HealthNutrientsUlcersUlsus by Peak Performance Nutrients is a powdered gut supplement designed for horses with low hay intake, stall bound and fed processed feeds. It intends to support normal acid production and mucus production.
Ultium Gastric Care (Purina)
Competition HorsesGut HealthStressUlcersPurina® Ultium® Gastric Care is a concentrate feed intended for performance horses to support gastric and hindgut health. It provides digestible fibres from beet pulp, alfalfa and soy hulls.
UltraCruz Equine Advanced Gastric Support (Santa Cruz Animal Health)
DigestionGut HealthHealthUlcersUltraCruz Equine Advanced Gastric Support supplement is an acid buffer for horses that comes in a pelleted or a powdered form. It contains aluminum phosphate, dihydroxy aluminum sodium carbonate, and calcium carbonate, which can increase the pH of the stomach.
UltraCruz Equine Aloe Vera (Santa Cruz Animal Health)
DigestionGut HealthHealthUlcersUltraCruz Equine Aloe Vera Supplement is a digestive support supplement for horses. This feed is intended for performance and environmentally-stressed horses. It contains 10 g of aloe vera gel powder per 1 scoop (28 g) serving.
UltraCruz Equine Appetite Support (Santa Cruz Animal Health)
Gut HealthProbioticWeight IssuesYeastUltraCruz Equine Appetite Support Supplement is a pelleted supplement intended to increase appetite and support digestive health. It provides 30 billion CFU of probiotics and prebiotics, as well as 2 grams of L-glutamine per serving (56 grams). It can be fed to stressed horses and weanlings.
UltraCruz Equine Bio-Absorb (Santa Cruz Animal Health)
ColicDigestionGut Health
IngredientUltraCruz Equine Bio-Absorb Supplement is a montmorillonite clay supplement for horses available as a powder or a paste. It is intended to support gut flora and bowel health.
UltraCruz Equine Probiotic (Santa Cruz Animal Health)
Gut HealthHindgutProbioticYeastUltraCruz Equine Probiotic by Santa Cruz is a probiotic and prebiotic supplement for horses intended to support a healthy digestive tract. The pelleted version supplies 30 billion CFU/serving (28 grams), and the powder version supplies 450 million CFU/serving (15 grams).
UltraCruz Equine Probiotic Paste (Santa Cruz Animal Health)
Hindgut
PrebioticProbioticYeastUltraCruz Equine Probiotic Paste Supplement provides 200 million CFU (per 15 mL serving) of probiotics and prebiotics meant to support healthy digestive function. It is intended for horses or foals experiencing stress from dietary changes, antibiotics, and/or exercise.
UltraCruz Equine Pure Psyllium (Santa Cruz Animal Health)
ColicGut HealthHindgutIngredientUltraCruz Equine Pure Psyllium provides 100 g of psyllium husk per recommended dose (100 g). Psyllium husk supports gut health in horses. It is often supplemented to horses on sandy pastures to reduce the risk of sand colic.
UltraCruz Foal Advanced Probiotic Paste (Santa Cruz Animal Health)
DigestionFoalGut HealthProbioticUltraCruz Foal Advanced Probiotic Paste is intended for use in newborn to weaned foals. It contains probiotics (Lactobacillus rhamnosus), yeast (Saccharomyces cerevisiae), L-glutamine, and digestive enzymes (lactase and amylase) blended in flaxseed oil.
UltraCruz Mineral Oil Light (Santa Cruz Animal Health)
ColicDigestionGut HealthHindgutUltraCruz Mineral Oil Light is a veterinary laxative for horses, sometimes used as a partial treatment of impaction colic. Mineral oil is indigestible by horses and reduces the re-absorption of water, creating a laxative effect. Mineral oil can decrease the digestion and absorption of fat-soluble vitamins and should not be used long-term.
UltraCruz Psyllium Fiber Supplement (Santa Cruz Animal Health)
ColicDigestionFiberGut HealthUltraCruz Psyllium Fiber® Supplement contains psyllium husk and is designed to promote a healthy digestive tract. It is formulated with molasses, contains no added minerals or vitamins and is designed to deliver 100 grams of psyllium husk per serving.
ULZERless Pellets (Formula 707)
DigestionGut HealthHealthUlcersULZERless Pellets from Formula 707 is a pelleted supplement intended to support stomach health and digestion. It is meant for horses prone to ulcers.
Veteran Supplement (NAF Equine)
Mineral Balance
Senior
VitaminsYeastVeteran Supplement from NAF Equine is intended for senior horses and ponies. This supplement is meant to support digestive health and provide micronutrient that are essential for overall health.
Vitalize Alimend (BioZyme)
DigestionGut HealthPerformanceStressVitalize Alimend by BioZyme is a liquid supplement intended to support overall gastric health in performance horses, and horses experiencing stress from training or traveling.
Vitalize Equine Digest More Plus (Biozyme)
DigestionGut HealthImmunityPrebioticVitalize Equine Digest More Plus is meant to be an equine gut health supplement made by BioZyme. It contains prebiotics, biotin, zinc, and Amaferm (Aspergillus oryzae fermentation product).
Vitalize Equine Free Choice (BioZyme)
HealthMineral Balance
NutritionVitaminsVitalize Equine Free Choice by BioZyme is a vitamin and mineral supplement that supports digestion, nutrient absorption, and hindgut support. This feed additive is for horses on pasture and includes a prebiotic that aids with digestion.
WaterWerks (HorseTech)
Gut HealthPrebioticProbioticYeastWaterWerks from HorseTech is a supplement that is meant to provide digestive support and is meant for horses with free fecal water syndrome or leaky gut syndrome. It contains live yeast and bacteria for gut health.
WES Sensitive Mash (St.Hippolyt)
Digestion
Grain FreeHealth
ProteinWES Sensitive Mash by St.Hippolyt is an alfalfa, soy and grain-free supplement, intended for horses with a sensitive gastrointestinal tract.
Xtrabalance Digestive Supplement (CEN)
DigestionHindgutProbiotic
Toxin BinderCEN's Xtrabalance Digestive Supplement is meant to support horses' digestive health. It contains toxin binders, prebiotics and probiotics, and contributes to hindgut health by buffering pH.
Yea-Sacc (AniMed)
ColicGut HealthIngredientYeastYea-Sacc from AniMed contains only Yea-Sacc, a form of yeast. It is meant to support hindgut health, to maintain gut pH, and potentially contribute to reducing the risk of colic in horses.
Yea-Sacc (Saracen Horse Feeds)
DigestionFeed EfficiencyHindgutYeastYea-Sacc is a yeast supplement intended to help with digestion and gut health.
Yeast Culture (St.Hippolyt)
DigestionGut HealthImmunityYeastYeast Culture by St.Hippolyt is a pelleted supplement containing live yeast cultures and natural B vitamins, it is intended for all horse types.
Yucc’ It Up! Original Formula (Yucc’ It Up!)
Gut HealthHealthHerbImmunityYucc' It Up! Original Formula from Yucc' It Up! is intended to provide whole-body support for horses. Yucc' It Up! Original Formula contains yucca schidegera herb which is intended to support intestinal health.
