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Feed Additives for Horses

Explore feed additives used in horse feeds and supplements in the Mad Barn Equine Feed Database. This category includes non-nutritive and functional ingredients commonly found on equine product labels, such as binding agents, preservatives, anti-caking agents, flow agents, carriers, emulsifiers, stabilizers, processing aids, flavoring agents, antioxidants, pellet binders, and coating agents.

Review detailed ingredient profiles, functions, and common uses to understand how these additives support product stability, shelf life, texture, flowability, palatability, nutrient delivery, and manufacturing consistency. Compare additives by source, inclusion purpose, functional role, and use in commercial horse feeds, ration balancers, supplements, and treats.

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Feed Additives 61 entries
AgriMune DP (Dispersible Powder) (Agri Feed International)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
YeastYeast
AgriMune DP is a gut health supplement for agriculture species that provides prebiotics and probiotics. It contains mannanoligosaccharides, beta glucans, and yeast culture.
Allzyme SSF (Alltech)
DigestionDigestion
Feed EfficiencyFeed Efficiency
HealthHealth
HindgutHindgut
Allzyme SSF from Alltech is a feed enzyme used as an ingredient in equine supplements to support feed digestibility, nutrient absorption and a healthy digestive system.
Amaferm (BioZyme)
DigestionDigestion
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
PrebioticPrebiotic
Amaferm by Biozyme is a prebiotic derived from the fungus Aspergillus oryzae. It can support feed digestibility and nutrient absorption in the gut.
Apple Cider Vinegar
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
Metabolic SyndromeMetabolic Syndrome
Apple cider vinegar is sometimes added to equine diets to promote palatability and support health. In high amounts, it can disrupt gut function and contribute to gut health issues.
Bentonite Poudre (Nature Belisle)
Gut HealthGut Health
ImmunityImmunity
IngredientIngredient
Toxin BinderToxin Binder
Bentonite Poudre by Nature Belisle is a sodium bentonite clay feed presented in a powder form. Bentonite clay can be beneficial for absorbing unwanted toxics within the gut.
Bio-Mos (Alltech)
Gut HealthGut Health
ImmunityImmunity
IngredientIngredient
Toxin BinderToxin Binder
Bio-Mos® is a feed additive from Alltech that is made from a specific strain of Saccharomyces cerevisiae yeast. It supports gut health, feed efficiency, and immune defenses.
Brewer’s Yeast
DigestionDigestion
Mineral BalanceMineral Balance
VitaminsVitamins
YeastYeast
Brewer's yeast is a strain of Saccharomyces cerevisiae yeast that is a byproduct of the beer brewing industry. It is heat-treated to make the yeast cultures inactive and is a source of B vitamins, minerals and amino acids.
Calcium Propionate
HealthHealth
IngredientIngredient
NutrientsNutrients
Toxin BinderToxin Binder
Calcium propionate is a feed additive used primarily as a preservative in horse feeds and supplements. It inhibits the growth of molds and some bacteria, helping maintain feed quality and extend shelf life during storage. Although it also supplies calcium, it is included primarily for its preservative properties rather than as a nutritional source of this mineral.
Chaste Berry
CalmingCalming
Coat QualityCoat Quality
HerbHerb
MareMare
Chaste Berry (Vitex agnus-castus) is the fruit of the chaste tree, used as an equine supplement to support mood and hormone balance. It is purported to support horses with Cushing’s disease / PPID.
Citric Acid
AntioxidantAntioxidant
FlavorFlavor
IngredientIngredient
NutrientsNutrients
Citric acid is a weak acid found in citrus fruits. It is used in horse feeds and supplements as a natural preservative ingredient and flavouring additive.
Diatomaceous Earth (Modesto Milling)
HealthHealth
IngredientIngredient
Mineral BalanceMineral Balance
NutritionNutrition
Diatomaceous Earth is a horse feed additive that is used as a natural preservative. It contains high levels of the mineral silica. Diatomaceous Earth is sometimes used as a de-wormer for horses, however there is no scientific evidence to support this use.
EmproveMx (Emmert)
Gut HealthGut Health
HealthHealth
Organic Trace MineralsOrganic Trace Minerals
YeastYeast
EmproveMx by Emmert is a functional yeast supplement derived from brewing processes. It acts as a prebiotic and contains yeast metabolites, vitamins, and minerals.
Fermenten (Arm & Hammer Animal Nutrition)
Amino AcidAmino Acid
Feed EfficiencyFeed Efficiency
GrowthGrowth
ProteinProtein
Fermenten is a rumen fermentation enhancer feed additive that is primarily used in lactating cows, growing heifers and other ruminants to promote microbial growth and enhance feed efficiency.
Flax Seed – Fresh Ground
Coat QualityCoat Quality
FatFat
Omega 3-6-9Omega 3-6-9
Weight IssuesWeight Issues
Fresh ground flaxseed is a source of the omega-3 fatty acid, Alpha Linoleic Acid (ALA). Flaxseed is low in sugars and starches and provides cool energy. To prevent rancidity, fresh ground flaxseed should be fed immediately after grinding.
Gelatin
Amino AcidAmino Acid
Coat QualityCoat Quality
Hoof HealthHoof Health
SeniorSenior
Gelatin is derived from animal collagen and is used to congeal foods. Gelatin improves the binding and the shelf life of animal feeds. Almost no industrial gelatin production is made from horse collagen.
Glucosamine
ExerciseExercise
JointsJoints
RecoveryRecovery
SeniorSenior
Glucosamine is a natural component of cartilage, commonly used in joint supplements for horses. Glucosamine sulfate has mixed efficacy for supporting joint health in equine studies.
Hilyses – Yeast-Based Additive
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
YeastYeast
Hilyses by Yorkag is a yeast-based feed additive that provides prebiotics, B-vitamins, and amino acids. It can be used as a protein supplement for horses.
Integral A+ (Alltech)
Gut HealthGut Health
ImmunityImmunity
IngredientIngredient
Toxin BinderToxin Binder
Integral A+ is a hydrolyzed dried yeast ingredient with prebiotic effects used in horse feeds and supplements. It contains glucomannan (mannanoligosaccharide and beta-glucans) and dried seaweed meal (green algae).
ISF Herbageum Condiment (ISF)
FlavorFlavor
HerbHerb
IngredientIngredient
NutrientsNutrients
ISF Herbageum Condiment is a flavoring agent that contains herbs. ISF Herbageum Condiment is intended to be added to grain and protein mixed rations for all types of livestock.
Kelp Meal
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
StaminaStamina
Kelp meal (brown algae) is derived from dried marine seaweed. It is rich in chelated trace minerals and is commonly used as an iodine supplement to support thyroid function in horses.
Leucine
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
RecoveryRecovery
L-Leucine is an amino acid that plays a role in muscle growth and protein synthesis for horses. Like other BCAAs, it is sometimes supplemented for performance horses.
Lignin Sulfonate
Feed EfficiencyFeed Efficiency
FiberFiber
IngredientIngredient
NutritionNutrition
Lignin sulfonate is a plant-derived binder made from processed wood lignin. It is used to help pellets hold their shape and reduce fines.
Micro Aid Feed Grade Concentrate (DPI Global)
HealthHealth
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
Micro Aid Feed Grade Concentrate is an agriculture feed additive used to reduce ammonia and other gases. It is intended for cattle, horses and poultry.
Mold-Zap Liquid (Alltech)
DigestionDigestion
Gut HealthGut Health
HealthHealth
ImmunityImmunity
Mold-Zap® is a feed additive that inhibits mold growth to reduce spoilage and dry matter deterioration while retaining nutrient levels. This product is intended for use in stored raw materials, forages, and animal feed.
Optimum (NAF Equine)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
VitaminsVitamins
Optimum by NAF Equine is a pelleted ration balancer that is formulated to provide the vitamins and minerals for a high-fiber and low concentrate diet or a performance diet.
Original Yeast YC (Diamond V)
HindgutHindgut
ProbioticProbiotic
Toxin BinderToxin Binder
YeastYeast
Diamond V Yeast Culture™ (Original YC™) is a feed ingredient made by fermenting bakers yeast (Saccharomyces cerevisiae) on a cereal grain culture-media. It can be added to equine diets to support hindgut health.
Pea Protein Isolate
GrowthGrowth
PerformancePerformance
ProteinProtein
ToplineTopline
Pea Protein Isolate is a powdered protein source for horses that is made from split peas. The extracted protein source contains all nine essential amino acids and it is particularly high in branched-chain amino acids (BCAAs).
Peloton® Yeast Feed Additive (PMI)
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
ImmunityImmunity
YeastYeast
Peloton is a live yeast additive for livestock diets. It is used to support gut health in ruminants, horses, swine and poultry.
Potassium Sorbate
ElectrolyteElectrolyte
IngredientIngredient
MuscleMuscle
StaminaStamina
Potassium sorbate is a preservative added to feeds to prevent mold growth. It is a naturally occurring unsaturated fatty acid.
Potato Pulp
EnergyEnergy
NutritionNutrition
ProteinProtein
Weight IssuesWeight Issues
Potato pulp refers to the dry matter residue that remains after potatoes are processed to extract starch. The pulp is high in protein, starch and fiber.
Procreatin 7 Active Dried Yeast (Phileo by Lesaffre)
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
Toxin BinderToxin Binder
YeastYeast
Procreatin 7 is a proprietary strain of Saccharomyces cerevisiae yeast used as a probiotic supplement in livestock feeds. It supports fiber, starch, and protein digestion.
Redmond Conditioner
HealthHealth
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
Redmond Conditioner is a montmorillonite (hydrated sodium calcium aluminosilicate) livestock feed additive that contains a broad array of macro and trace minerals.
Rhodimet AT88
Amino AcidAmino Acid
GrowthGrowth
IngredientIngredient
MuscleMuscle
Phodimet AT88 is a feed additive that provides the amino acid methionine. It is primarily used in poultry and swine feeds.
Saport (PMI Nutrition)
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
HerbHerb
IngredientIngredient
Saport is a feed additive primarily used for agricultural animal species. It contains saponins from the Yucca Schidigera plant to reduce ammonia emissions from manure.
Sel-Plex 1000 (Alltech)
AntioxidantAntioxidant
ImmunityImmunity
IngredientIngredient
MetabolismMetabolism
Sel-Plex® 1000 from Alltech is a proprietary organic selenium supplement in the form of selenized yeast. It is safer and more bioavailable compared to inorganic forms of selenite.
Sel-Plex 600 (Alltech)
HealthHealth
ImmunityImmunity
Organic Trace MineralsOrganic Trace Minerals
YeastYeast
Sel-Plex 600 is a single-ingredient organic selenium yeast supplement that is used in horse feeds and products. Organic trace minerals are generally better absorbed than inorganic minerals.
Selenium Yeast 2000 (TransChem)
HealthHealth
ImmunityImmunity
Organic Trace MineralsOrganic Trace Minerals
YeastYeast
TransChem Selenium Yeast 2000 PPM is made from Saccharomyces cerevisiae yeast grown in a selenium-rich medium. This supplement provides selenium in the form of selenomethionine.
Selenium Yeast 600
HealthHealth
ImmunityImmunity
Organic Trace MineralsOrganic Trace Minerals
YeastYeast
Selenium Yeast 600 is an organic selenized yeast supplement providing 600 ppm (mcg/gram) of selenium. It is made from Saccharomyces cerevisiae yeast grown in a selenium-rich medium and supplies this mineral in the form of an amino acid complex.
SelenoSource AF 2000 (Diamond V)
AntioxidantAntioxidant
ImmunityImmunity
IngredientIngredient
MetabolismMetabolism
SelenoSource™ AF 2000 is an organic selenium supplement consisting of selenized Saccharomyces cerevisiae yeast. The primary active ingredient is selenomethionine.
Smartamine ML (Adisseo)
Amino AcidAmino Acid
GrowthGrowth
IngredientIngredient
ProteinProtein
Smartamine ML is a source of the amino acids methionine and lysine. Methionine and lysine are two of the limiting amino acid in equine diets. Supplementation may support topline and muscle growth.
Sodium Bentonite
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
Toxin BinderToxin Binder
Sodium bentonite is natural clay that is used as a binder in animal feeds. It is also purported to bind toxins and minerals in the digestive tract.
Sodium Bicarbonate
ElectrolyteElectrolyte
ExerciseExercise
Gut HealthGut Health
PerformancePerformance
Sodium bicarbonate (baking soda) is a chemical compound that is fed to horses as an antacid. It temporarily buffers stomach acid to increase gastric pH.
Sodium Bicarbonate (Natural Soda)
ElectrolyteElectrolyte
ExerciseExercise
Gut HealthGut Health
IngredientIngredient
Sodium bicarbonate is a feed additive for horses at risk of gastric ulcers. It is commonly used as an acid buffer to neutralize stomach acid. Sodium bicarbonate may be fed to adult horses and ponies at all work levels.
Soy 70
MuscleMuscle
NutritionNutrition
ProteinProtein
ToplineTopline
Soy protein concentrate 70 is an amino acid supplement made from purified soybean meal. It is refined to improve digestibility and to remove anti-nutritive factors.
SoyChlor (Landus Cooperative)
Bone HealthBone Health
ElectrolyteElectrolyte
IngredientIngredient
Mineral BalanceMineral Balance
SoyChlor is a feed additive primarily used in dairy cattle. It is a source of chloride ions, and is used to balance dietary cation-anion difference (DCAD). SoyChlor also contains calcium and magnesium.
Sucram (Pancosma)
DigestionDigestion
FlavorFlavor
IngredientIngredient
Weight IssuesWeight Issues
Sucram is a sweetener designed to improve feed intake when added to livestock feeds. It is marketed as a palatability enhancer that does not add excess calories to the diet. Sucram is beneficial for young livestock and during high-stress periods.
Water
Gut HealthGut Health
HealthHealth
HydrationHydration
StaminaStamina
Water is one of the most important nutrients in your horse's diet. A typical 500 KG horse at maintenance requires at least 25 litres (6.6 US gallons) of water per day. Horses require can require up to 55 L (15 US gallons) in hot weather and between 40L to 70L (10 to 18 US gallons) when exercising. Provide your horse with constant access to fresh clean water.
Wheat Distillers
EnergyEnergy
FiberFiber
GrainsGrains
NutritionNutrition
Wheat distillers grain is a byproduct of alcohol distillation from wheat to manufacture products such as vodka, gin and whisky. Distillers grain is commonly used as an energy and protein source in food animal rations.
Xanthan Gum
FiberFiber
FlavorFlavor
IngredientIngredient
MetabolismMetabolism
Xanthan gum is a feed additive used to thicken and stabilize livestock feeds. It is added to prevent ingredients from separating.
XPC Yeast Culture (Diamond V)
Feed EfficiencyFeed Efficiency
HindgutHindgut
ImmunityImmunity
YeastYeast
Diamond V® XPC is a feed additive and microbial fermentate product that supports the immune system and performance. It is based on a Saccharomyces cerevisiae yeast culture.
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