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Feed Ingredients for Horses

Explore feed ingredients used in horse feeds, forages, and supplements in the Mad Barn Equine Feed Bank. This category includes individual ingredients commonly found on equine product labels, such as grains, forage ingredients, protein sources, fat sources, minerals, vitamins, amino acids, yeasts, herbs, binders, and feed additives.

Review detailed nutritional profiles, ingredient functions, and common uses to better understand what is included in commercial horse feeds and supplements. Compare ingredients by nutrient content, calorie source, protein quality, mineral contribution, fiber level, fat content, and intended role in the diet to make more informed feeding decisions for your horse.

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Feed Ingredients
3:1 Zinc Copper (Mad Barn)
HealthHealth
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Skin + HairSkin + Hair
Mad Barn’s 3:1 Zinc Copper Powder is an organic trace mineral supplement for horses, providing zinc and copper proteinates in a 3:1 ratio. These chelated trace minerals are formulated for improved absorption and help support hoof health, connective tissue integrity, skin condition and coat quality.
Monosodium Phosphate (Mad Barn)
Bone HealthBone Health
GrowthGrowth
IngredientIngredient
Mineral BalanceMineral Balance
Monosodium Phosphate is a highly bioavailable source of phosphorus commonly used as an equine supplement. Phosphorus is considered an important component for metabolic function. Adult horses require 17 grams of phsophours a day.
MSM – Methylsulfonylmethane (Mad Barn)
Hoof HealthHoof Health
JointsJoints
RecoveryRecovery
Skin + HairSkin + Hair
MSM is a readily available form of the mineral sulfur. It is beneficial for supporting healthy connective tissue, recovery, and hoof and joint health. MSM from Mad Barn also helps to relieve arthritic pain and sore muscles. It is considered very safe as a supplement for horses.
Natural E/Organic Se (Mad Barn)
AntioxidantAntioxidant
Organic Trace MineralsOrganic Trace Minerals
RecoveryRecovery
VitaminsVitamins
Natural E/Organic Se is a pelleted supplement providing organic Selenium yeast and natural Vitamin E. These two nutrients are important antioxidants that support muscle function and anti-inflammatory pathways.
Omneity P – Pellets – Vitamin & Mineral Supplement (Mad Barn)
Gut HealthGut Health
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
Ration BalancerRation Balancer
Omneity Pellets is a balanced mineral and vitamin supplement for horses in a palatable pellet form. It provides 100% organic trace minerals, complete B-vitamin fortification, added Vitamin E, yeast and digestive enzymes.
Performance XL: Electrolytes (Mad Barn)
Competition HorsesCompetition Horses
ElectrolyteElectrolyte
PerformancePerformance
StaminaStamina
Performance XL: Electrolytes by Mad Barn is a scientifically formulated equine electrolyte supplement designed to support athletic performance and workout recovery. It contains an ideal blend of natural minerals and vitamins to promote hydration status and muscle function.
Psyllium (Mad Barn)
FiberFiber
Gut HealthGut Health
HindgutHindgut
StressStress
Psyllium 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.
Trace Mineral Pak (Mad Barn)
Coat QualityCoat Quality
ExerciseExercise
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
Trace Mineral Pak from Mad Barn is a balanced equine supplement providing 100% organic (chelated) trace minerals. Ingredients include selenium, zinc, copper, and manganese.
w-3 Oil (Mad Barn)
Coat QualityCoat Quality
FatFat
JointsJoints
Omega 3-6-9Omega 3-6-9
w-3 Oil by Mad Barn is an essential fatty acid supplement fortified with the omega-3 DHA and natural Vitamin E. W-3 Oil helps to support joint health, coat quality, cardiovascular health and weight maintenance.
Zinc (Mad Barn)
HealthHealth
ImmunityImmunity
IngredientIngredient
Mineral BalanceMineral Balance
Mad Barn Zinc Proteinate provides an organic source of zinc to support normal growth, tissue health, and the maintenance of healthy skin, hair, and hooves. Zinc is also a structural component of many enzymes involved in immune function, nervous system function, and protein synthesis.
KeyShure Cobalt Proteinate 10% (Balchem)
Blood CellsBlood Cells
IngredientIngredient
MetabolismMetabolism
Organic Trace MineralsOrganic Trace Minerals
Cobalt proteinate is an organic form of the trace mineral cobalt, which is used by microbes in the equine hindgut to make vitamin B12.
KeyShure Copper Proteinate 15% (Balchem)
Hoof HealthHoof Health
IngredientIngredient
JointsJoints
Organic Trace MineralsOrganic Trace Minerals
KeyShure copper proteinate is an organic form of the trace mineral copper. This micromineral is an important antioxidant and supports healthy hooves and skin condition.
KeyShure Iron Proteinate 15% (Balchem)
Blood CellsBlood Cells
IngredientIngredient
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
Iron proteinate 15% is an organic form of the micromineral iron, which helps transport oxygen in the blood and supports to red blood cell production. Supplemental iron is typically not required in equine diets.
KeyShure Magnesium Proteinate 10% (Balchem)
CalmingCalming
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
KeyShure Magnesium proteinate is an organic form of the macromineral magnesium. This mineral is important for nerve and muscle function.
KeyShure Manganese Proteinate 15% (Balchem)
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
Organic Trace MineralsOrganic Trace Minerals
KeyShure Manganese proteinate is an organic form of the trace mineral manganese. This micromineral is an important antioxidant and supports bone and joint formation in young animals.
KeyShure Zinc Proteinate 15% (Balchem)
HealthHealth
Hoof HealthHoof Health
IngredientIngredient
Organic Trace MineralsOrganic Trace Minerals
KeyShure provides chelated microminerals for all livestock species and horses. Zinc is a trace mineral that acts as an antioxidant and supports hoof and coat quality.
Lecithin
DigestionDigestion
Feed EfficiencyFeed Efficiency
IngredientIngredient
NutritionNutrition
Lecithin is a fat-derived emulsifier commonly sourced from soybeans or sunflower seeds.
Lemon Grass (Cymbopogon Citratus)
FiberFiber
ForageForage
Gut HealthGut Health
NutritionNutrition
Lemongrass is a perennial grass with fragrant leaves and stalks. It is purported to act as an insect repellant and exert a calming action when ingested by 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.
Limestone Dolomite Magnesium
Bone HealthBone Health
GrowthGrowth
IngredientIngredient
MuscleMuscle
Dolomite is a type of limestone that contains equal parts magnesium carbonate and calcium carbonate. Dolomite is added to equine diets to support bone health, muscle function and metabolism.
Limestone Flour
Bone HealthBone Health
GrowthGrowth
Mineral BalanceMineral Balance
NutrientsNutrients
Limestone Flour provides a source of calcium in horse feeds. This mineral can support milk production in lactating mares, bone and tissue growth, muscle contractions and nerve impulse transmission. Calcium must be fed in a balanced ratio to phosphorus.
Limestone Ground
Bone HealthBone Health
GrowthGrowth
IngredientIngredient
MuscleMuscle
Limestone is an excellent source of calcium commonly used in livestock supplements and feeds. It may be beneficial if your horse has a suboptimal calcium-phosphorous ratio or if the diet is not supplying enough calcium.
Linseed Meal – Expelled
Coat QualityCoat Quality
FatFat
FiberFiber
Omega 3-6-9Omega 3-6-9
Expelled linseed (flaxseed) meal is a byproduct of linseed oil production. After the fat has been expelled, the remaining dry matter is rich in fiber and protein.
Linseed Meal – Solvent Extracted
Coat QualityCoat Quality
FatFat
ProteinProtein
ToplineTopline
Linseed meal is a byproduct of linseed oil (flax oil) production, which remains following extraction of the oil. Linseed meal is a good source of protein, but is low in lysine content.
Linseed Meal Heat Treated
Amino AcidAmino Acid
Coat QualityCoat Quality
FatFat
Omega 3-6-9Omega 3-6-9
Linseed Meal (also called flaxseed meal) is a good source of digestible fiber and fat. Heat-treating linseed meal can reduce cyanogenic compounds produced after the seed is ground.
Linseed Oil
EnergyEnergy
FatFat
Omega 3-6-9Omega 3-6-9
Weight IssuesWeight Issues
Linseed oil (Flaxseed oil) is a plant-based essential fatty acid supplement rich in the omega-3, alpha linolenic acid (ALA). It is often fed to horses that need to gain weight and to improve coat quality.
Lupin Hulls
FatFat
FiberFiber
Gut HealthGut Health
ProteinProtein
Lupin Hulls are the fibrous coating of lupin seeds removed during processing. They provide a highly digestible source of fiber with moderate levels of protein and are low in sugar and starch.
Lupin Meal
EnergyEnergy
FiberFiber
NutrientsNutrients
ProteinProtein
Lupin meal is made from ground lupin seeds after processing. It is a protein-rich ingredient that also provides fiber and energy.
Lupins
FatFat
FiberFiber
HindgutHindgut
ProteinProtein
Lupin beans are a legume sometimes used in horse feeds, providing high levels of protein and moderate levels of fat. Lupins supply high fibre content but have low levels of starch.
Lupins Sweet
FiberFiber
MuscleMuscle
ProteinProtein
Weight IssuesWeight Issues
Sweet Lupins (also called lupini beans) are a yellow legume seed that are a low-starch source of protein (28-34%) and digestible fiber. Compared to soybean meal, sweet lupins are lower in lysine and methionine but tend to be more palatable.
Lysine Hydrochloride (HCl) – 98.5%
Amino AcidAmino Acid
Coat QualityCoat Quality
Hoof HealthHoof Health
MuscleMuscle
Lysine Hydrochloride is a form of lysine supplement that provides approximately 80% L-Lysine. This essential amino acid is considered the first limiting amino acid in the equine diet.
Magnesium Carbonate
CalmingCalming
ElectrolyteElectrolyte
IngredientIngredient
MuscleMuscle
Magnesium Carbonate is an inorganic salt often used as a horse supplement to buffer stomach acids. It is a low-iron form of magnesium that is relatively bioavailable. 38 grams of magnesium carbonate provides 10 grams of elemental magnesium.
Magnesium Chloride
CalmingCalming
ElectrolyteElectrolyte
IngredientIngredient
MuscleMuscle
Magnesium Chloride is a form of magnesium salt that has a similar bioavailability in horses as magnesium oxide. It is not widely used as an equine supplement because it is not palatable to horses. To feed 10 grams of elemental magnesium, you would need to provide 62 grams of magnesium chloride.
Magnesium Hydroxide
CalmingCalming
ElectrolyteElectrolyte
IngredientIngredient
MuscleMuscle
Magnesium hydroxide is an inorganic form of the macromineral magnesium. It can be used to buffer stomach acid and may provide temporary relief of gastric ulcers. Magnesium hydroxide is not recommended as a supplement if additional magnesium is required in the diet.
Magnesium Oxide (MagOx)
CalmingCalming
IngredientIngredient
Metabolic SyndromeMetabolic Syndrome
MuscleMuscle
Magnesium oxide is a concentrated and cost-effective source of the mineral magnesium to add to the equine diet. It provides 56% elemental magnesium with 70% absorption from the gut.
Magnesium Sulfate (Epsom Salts)
ElectrolyteElectrolyte
Gut HealthGut Health
IngredientIngredient
MuscleMuscle
Magnesium sulfate is an inorganic source of the mineral magnesium. Epsom Salts can be used under veterinary guidance to promote gut motility.
Magnesium Sulfate Anhydrous
CalmingCalming
ElectrolyteElectrolyte
IngredientIngredient
MuscleMuscle
Magnesium Sulfate (epsom salts) is a form of magnesium that is not readily absorbed by horses. The anhydrous form does not contain water. Magnesium sulfate is not very palatable to horses and, if too much is fed, it can have a laxative effect.
MagOx (HorseTech)
CalmingCalming
Hoof HealthHoof Health
MetabolismMetabolism
MuscleMuscle
MagOx from HorseTech is a powdered magnesium oxide supplement that provides 56% elemental magnesium (Mg). MagOx is used to support a healthy nervous system and proper muscle function in horses.
Mais Flocon (Nature Belisle)
Caloric EnergyCaloric Energy
EnergyEnergy
GrainsGrains
NutritionNutrition
Mais Flocon by Nature Belisle is a corn feed intended for horses and ponies of all ages and work levels. It contains 7.5% protein and 2.15% fibre.
Manganese Carbonate
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
JointsJoints
Manganese carbonate is a form of manganese that is sometimes added to animal feeds. This trace mineral is important for bone formation, metabolism, and antioxidant protection. Manganese oxide or organic manganese amino acid complexes are more commonly used in equine diets.
Manganese Chloride 4H2O
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
JointsJoints
Manganese Chloride Tetrahydrate can be added to equine feeds as an inorganic source of the trace mineral manganese. This mineral supports growth, metabolism, and antioxidant protection.
Manganese Chloride Anhydrous
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
JointsJoints
Manganese chloride (MnCl2) is a source of the essential trace mineral manganese, which is required for growth, metabolic processes, and antioxidant protection. MnCl2 exists in several forms: anhydrous, dihydrate, or tetrahydrate. The tetrahydrate form is more common and can be added to animal feeds.
Manganese Oxide
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
JointsJoints
Manganese oxide is a supplemental source of the trace mineral manganese for horses. Manganese is important for bone formation, healthy joints and acts as an antioxidant.
Manganese Sulfate
AntioxidantAntioxidant
Bone HealthBone Health
IngredientIngredient
JointsJoints
Manganese sulfate is an inorganic form of the trace mineral manganese. It is commonly supplemented in equine diets to support growth, immune function, antioxidant protection and metabolic health.
Manganese Sulfate 5H2O
AntioxidantAntioxidant
Bone HealthBone Health
GrowthGrowth
JointsJoints
Manganese sulfate 5H2O is a supplemental source of manganese that is added to equine diets. Manganese is an essential trace mineral involved in bone growth, antioxidant status, and metabolic processes.
Manganese Sulfate H2O
AntioxidantAntioxidant
GrowthGrowth
IngredientIngredient
JointsJoints
Manganese sulfate is an inorganic form of the trace mineral manganese. It is commonly added to equine diets to support growth, immune function, antioxidant protection and metabolic health.
Manpro 160 (Zinpro)
Amino AcidAmino Acid
ImmunityImmunity
MetabolismMetabolism
Organic Trace MineralsOrganic Trace Minerals
Zinpro Manpro 160 is a manganese methionine complex providing an organic source of the essential trace mineral manganese. It is used in animal feeds to support bone health, immunity, reproduction and digestion.
Marine-Derived Calcium
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
NutritionNutrition
Marine-derived calcium is a natural source of calcium taken from marine materials, such as algae or shells.
Methionine
Amino AcidAmino Acid
ExerciseExercise
Hoof HealthHoof Health
JointsJoints
Methionine is an essential amino acid that is considered the second or third limiting amino acid in the horse's diet. It is necessary for protein synthesis and has numerous bodily roles, including antioxidant production, hoof growth, coat quality, and protein synthesis.
Micro 5 Cr (Micronutrients by Nutreco)
HealthHealth
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
Micro 5 Cr by Micronutrients is a blend of trace minerals that contains zinc, manganese, copper, cobalt, calcium, and chromium. This mineral supplement is designed for ruminants (cattle, goats and sheep) to improve fibre digestibility and provide bio-available sources of copper and zinc.
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.
Micronutrients Micro 4 (Nutreco) – [Discontinued]
HealthHealth
IngredientIngredient
Mineral BalanceMineral Balance
NutrientsNutrients
Micro 4 by Micronutrients is a now-discontinued mineral supplement intended for dairy cattle, now rebranded as IntelliBond® Vital 4. It contains zinc hydroxychloride, manganese hydroxychloride, copper chloride and cobalt carbonate.
Microvit A DLC 300 (Adisseo)
HealthHealth
IngredientIngredient
NutrientsNutrients
VitaminsVitamins
Microvit A DLC (dispensable liquid concentrate) 300 by Adisseo is a liquid vitamin additive that contains 300,000 IU of Vitamin A per gram. Vitamin A is best known for its role in night vision and eye health. It is also important for reproductive health in mares and for maintaining immune function.
Microvit A Supra 1000 (Adisseo)
HealthHealth
IngredientIngredient
NutrientsNutrients
VitaminsVitamins
Microvit A Supra 1000 by Adisseo is a vitamin additive that contains 1,000,000 IU of Vitamin A per gram. Vitamin A is important for vision, reproductive health and immune function.
Microvit D3 500 DLC (Adisseo)
HealthHealth
IngredientIngredient
NutrientsNutrients
VitaminsVitamins
Microvit D3 500 DLC (dispensable liquid concentrate) by Adisseo is a concentrated liquid form of Vitamin D providing 500,000 IU/gram. Vitamin D is important for maintaining calcium and phosphorus balance in the body.
Microvit D3 Promix 500 (Adisseo)
HealthHealth
IngredientIngredient
NutrientsNutrients
VitaminsVitamins
Microvit D3 Promix 500 by Adisseo is a feed additive that contains 500,000 IU of Vitamin D3 per gram. Vitamin D is involved in immune function, bone health, and calcium and phosphorus balance in the body.
Microvit E DLC 60 (Adisseo)
HealthHealth
ImmunityImmunity
NutritionNutrition
VitaminsVitamins
Microvit E DLC (dispensable liquid concentrate) 60 is a consistent, flowable liquid that contains 600 IU/g of vitamin E. Vitamin E is a fat-soluble vitamin that acts as an important antioxidant for horses, helping to maintain a healthy immune system and supporting normal nerve and muscle function.
Microvit E Promix 50 (Adisseo)
AntioxidantAntioxidant
ImmunityImmunity
IngredientIngredient
VitaminsVitamins
Microvit E Promix 50 by Adisseo is a vitamin additive that contains 500 IU of Vitamin E per gram in an oil carrier. Vitamin E is a fat-soluble antioxidant for horses, involved in the immune system, exercise recovery, and supporting nerve and muscle function.
Microvit H Promix Biotin 2% (Adisseo)
Hoof HealthHoof Health
IngredientIngredient
NutrientsNutrients
VitaminsVitamins
Microvit H Promix Biotin 2% by Adisseo is a vitamin additive that contains 20,000 mg per kg of biotin. Biotin, also known as vitamin B7, is required in the horse’s diet for the production of keratin – the main protein that forms a strong, durable hoof structure.
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