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Ingredient

Magnesium Oxide

Magnesium Oxide is an inorganic compound composed of magnesium and oxygen. It is typically produced through the calcination of magnesite (magnesium carbonate) or by processing magnesium hydroxide derived from seawater. As a fine, white powder, Magnesium Oxide is valued for its high concentration of magnesium and stability under a range of conditions.

In equine diets, Magnesium Oxide serves as a supplemental source of magnesium, an essential mineral that supports muscle function, nerve conduction, and bone integrity. It is commonly included in feed formulations or supplements to help horses meet their daily magnesium requirements, especially when forages or other dietary components do not supply adequate levels. The bioavailability of Magnesium Oxide can vary depending on factors such as particle size and overall diet composition.

The following equine feeds, supplements and products contain Magnesium Oxide as an ingredient.

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Feeds, Supplements & Products
AminoTrace+ Vitamin and Mineral Supplement (Mad Barn)
Hoof HealthHoof Health
Metabolic SyndromeMetabolic Syndrome
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
AminoTrace+ by Mad Barn is a complete, balanced equine mineral and vitamin supplement designed for horses with metabolic concerns. It is ideal for horses with IR, PPID, or high iron in the diet.
MagneChrome+ (Mad Barn)
AntioxidantAntioxidant
EnergyEnergy
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
MagneChrome+ from Mad Barn (formerly sold under the name IR Supplement) is a magnesium and chromium supplement for IR Horses. This supplement provides antioxidant and support of normal insulin sensitivity which is critical for horses with metabolic conditions such as insulin resistance, laminitis and PPID.
Magnesium Oxide (Mad Barn)
CalmingCalming
HealthHealth
IngredientIngredient
MuscleMuscle
Magnesium Oxide is a concentrated source of magnesium that can be added to equine diets to help maintain adequate magnesium intake. Magnesium supports normal muscle and nerve function and plays a role in electrolyte balance, energy metabolism, and overall neuromuscular health.
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.
Alfa Pro (Hi-Pro Feeds)
FiberFiber
ForageForage
HealthHealth
NutrientsNutrients
Alfa Pro by Hi-Pro Feeds is a fortified, ground alfalfa cube formulated to support forage-based diets of adult horses. It contains corn, molasses, and vegetable oil.
Alfa-Pro Elite (Hi-Pro Feeds)
ForageForage
Grain FreeGrain Free
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Alfa-Pro Elite by Hi-Pro Feeds is a fortified, ground alfalfa cube. It is grain-free feed intended for horses with metabolic conditions.
Alfalfa Advantage (ProElite)
Mineral BalanceMineral Balance
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
ProElite Alfalfa Advantage is a low-feeding rate pelleted ration balancer intended to balance diets composed of alfalfa forages. It can be fed to all classes of horses.
Alfalfa Bermuda Blend Pellets (Ametza)
FiberFiber
ForageForage
Mineral BalanceMineral Balance
VitaminsVitamins
Alfalfa Bermuda Blend Pellets by Ametza is a pelleted feed that is meant to provide energy from sources such as alfalfa and Bermuda hay. It is intended for horses in light to moderate work.
Alfalfa Bermuda Hay Pellets (Ace Hi Feeds)
FiberFiber
ForageForage
Gut HealthGut Health
NutritionNutrition
Alfalfa Bermuda Hay Pellets can be used as a forage replacement for horses. This product also contains added vitamins and minerals. This feed is beneficial for older horses who have difficulty chewing.
Alfalfa Hay & Grain Pellets (Ace Hi Feeds)
FiberFiber
ForageForage
GrainsGrains
NutritionNutrition
Alfalfa Hay & Grain Pellets contain a blend of alfalfa forage and ground grain (barley or corn). This product contains a minimum of 12.5% protein, as well as added vitamins and minerals.
Alfalfa Hay Pellets (Ace Hi Feeds)
FiberFiber
ForageForage
Gut HealthGut Health
NutritionNutrition
Alfalfa Hay Pellets are a high protein forage source for horses. It contains a minimum of 14% protein and has added vitamins and minerals. This feed is beneficial for older horses, horses with bad teeth, or horses who are sensitive to breathing in dust from long-stem hay.
Alfalfa Hay Pellets (Kelley’s Feed)
FiberFiber
ForageForage
NutritionNutrition
ProteinProtein
Kelley's Feed Alfalfa Hay Pellets by is an alfalfa-based feed in a pelleted form with molasses for palatability. Hay pellets are recommended for horses with dental or respiratory issues. This forage replacement contains added vitamins and inorganic minerals.
Alfalfa Pellets (Ametza)
FiberFiber
ForageForage
Mineral BalanceMineral Balance
VitaminsVitamins
Alfalfa Pellets by Ametza is a pelleted feed that is intended to supply horses of all life stages with adequate energy. This feed contains alfalfa and is designed for maintenance or moderate to heavy working animals.
Alfalfa Support (Pureform)
AntioxidantAntioxidant
JointsJoints
Mineral BalanceMineral Balance
VitaminsVitamins
Pureform Alfalfa Support is a vitamin/mineral supplement designed for horses on diets containing high levels of alfalfa hay. It is suitable for all life stages and includes ingredients for joint health, such as glucosamine and MSM.
Alfalfa-Oat Hay Pellets (Ace Hi Feeds)
FiberFiber
ForageForage
NutritionNutrition
ProteinProtein
Alfalfa-Oat Hay Pellets by Ace Hi Feeds can be used as a forage replacement for horses. This product contains at least 12% protein, added molasses, and added vitamins and minerals.
Alfalfa-Pro Fibre (Spillers Feeds)
Caloric EnergyCaloric Energy
FatFat
FiberFiber
Gut HealthGut Health
Alfalfa-Pro Fibre from Spillers Feed is an alfalfa blend that provides 12% protein, 10% fat, and 25% fiber. This feed is intended to improve coat quality, support gut health, and reduce excitability.
Alfalfa/Bermuda Hay Pellets (Star Milling Co)
DentalDental
FiberFiber
ForageForage
NutritionNutrition
Alfalfa/Bermuda Hay Pellets by Star Milling Co are a blend of alfalfa and Bermuda hay designed as a forage replacement for horses. It contains 32% fiber and 11% protein in a 3/8 inch pellet with added molasses, vitamins, and minerals.
Alfalfa/Oat Hay Pellets (Kelley’s Feed)
FiberFiber
ForageForage
GrainsGrains
NutritionNutrition
Alfalfa/Oat Hay Pellets by Kelley's Feed is a pelleted forage replacement containing alfalfa and oat hay with added vitamins and minerals. Molasses is used for palatability and as an energy source.
Align (OE Nutraceuticals)
Gut HealthGut Health
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Align is a vitamin and mineral supplement intended for performance horses. It contains prebiotics and probiotics which are meant to support gut health.
All In (Woody’s Horse Nutrition)
HealthHealth
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
All In by Woody’s Horse Nutrition is a pelleted vitamin and mineral supplement intended for horses on a forage-based or unfortified grain diet. It contains the limiting amino acids lysine, methionine, and threonine.
All Phase (Lifeline)
FiberFiber
Grain FreeGrain Free
Mineral BalanceMineral Balance
VitaminsVitamins
All Phase from Lifeline is a pelleted ration balancer intended for all horse types. This ration balancer contains 20% protein.
All Phase 20 – Pelleted (Brooks)
HealthHealth
Organic Trace MineralsOrganic Trace Minerals
Ration BalancerRation Balancer
VitaminsVitamins
All Phase 20 is a pelleted ration balancer designed to supply protein, vitamins, and minerals to diets not containing the recommended daily serving of complete feed. This pelleted feed also contains biotin and yeast culture to support digestive and hoof health.
All Stock Block (Sweet Country Feeds)
Mineral BalanceMineral Balance
NutritionNutrition
ProteinProtein
VitaminsVitamins
All Stock Block by Sweet Country Feeds is a protein supplement intended for free-choice consumption by multiple livestock species including horses. It contains 20% protein and 4.5% fat.
All-4-Feet (Dunstan)
FiberFiber
Hoof HealthHoof Health
Low NSC FeedsLow NSC Feeds
Organic Trace MineralsOrganic Trace Minerals
All-4-feet Dunstan is a low-starch, protein, high fibre formulation, designed to meet the nutrition requirements of horses that benefit from a low starch/low sugar diet due to various health conditions.
Alpaca Concentrate Pellet (Bar Ale)
HealthHealth
NutrientsNutrients
NutritionNutrition
VitaminsVitamins
Alpaca Concentrate Pellet is a concentrated pelleted feed intended to be fed to alpacas. It contains 18% protein, 2.9% fat, and 18.5% fiber.
Amber Grains Classic 12-4 Fiberwise (Coker Feed Mill)
DigestionDigestion
Easy KeeperEasy Keeper
FiberFiber
RecoveryRecovery
Amber Grains Classic 12-4 Fiberwise by Coker Feed Mill is a high-fiber (20%) textured feed intended for easy keepers and horses in recovery.
Amber Grains Classic 12-5 Pellet (Coker Feed Mill)
DigestionDigestion
HealthHealth
NutrientsNutrients
NutritionNutrition
Amber Grains Classic 12-5 Pellet by Coker Feed Mill is a pelleted feed intended for active horses not in heavy work.
Amber Grains Classic 12-6 Textured (Coker Feed Mill)
NutrientsNutrients
NutritionNutrition
PrebioticPrebiotic
ProbioticProbiotic
Amber Grains Classic 12-6 Textured by Coker Feed Mill is a textured feed intended to supplement hay. It is designed for active horses not in heavy work.
Amber Grains Classic 14-8 Pellet (Coker Feed Mill)
DigestionDigestion
Gut HealthGut Health
HealthHealth
ProbioticProbiotic
Amber Grains Classic 14-8 Pellet by Coker Feed Mill is a corn-free pelleted feed intended to support overall health in horses in moderate work and older horses with sensitive digestive systems.
Amber Grains Classic Senior Textured (Coker Feed Mill)
DigestionDigestion
FiberFiber
Gut HealthGut Health
SeniorSenior
Amber Grains Classic Senior Textured by Coker Feed Mill is a textured feed intended to support digestion and body condition in senior horses.
Amber Grains Elite 10-10 Performance (Coker Feed Mill)
DigestionDigestion
EnergyEnergy
MuscleMuscle
PerformancePerformance
Amber Grains Elite 10-10 Performance by Coker Feed Mill is a high calorie textured feed intended to support digestion, muscle gain and endurance in performance horses.
Amber Grains Elite 12-12 Performance (Coker Feed Mill)
DigestionDigestion
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Amber Grains Elite 12-12 Performance by Coker Feed Mill is a textured feed intended to provide cool energy for performance horses.
Amber Grains Elite Front Runner (Coker Feed Mill)
Caloric EnergyCaloric Energy
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Amber Grains Elite Front Runner by Coker Feed Mill is a high-energy feed intended for performance. It is formulated to support strength, stamina and endurance in horses.
Amber Grains Elite Mare and Foal (Coker Feed Mill)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Amber Grains Elite Mare and Foal by Coker Feed Mill is a textured feed intended to support overall health in pregnant mares, lactating mares and growing foals.
Amber Grains Elite Serenity Ultra LS (Coker Feed Mill)
HealthHealth
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
SeniorSenior
Amber Grains Elite Serenity Ultra LS by Coker Feed Mill is a low NSC (8.94%) pelleted feed intended for horses with sensitive digestive systems.
Amber Grains Elite Super Senior (Coker Feed Mill)
DigestionDigestion
FiberFiber
ProbioticProbiotic
SeniorSenior
Amber Grains Elite Super Senior by Coker Feed Mill is a textured feed intended to support overall health and digestion in senior horses.
Amino+ (Advanced Equine Nutrition)
Amino AcidAmino Acid
CirculationCirculation
PerformancePerformance
RecoveryRecovery
Amino+ by Advanced Equine Nutrition is a supplement intended to support performance and recovery.
Aminolyte (Banks Mill Feeds)
Amino AcidAmino Acid
ElectrolyteElectrolyte
MuscleMuscle
PerformancePerformance
Equine First Aminolyte is an electrolyte and branched-chain amino acid supplement intended to support exercise and recovery in performance horses.
Amplify High Fat Supplement (Purina Mills)
Coat QualityCoat Quality
Competition HorsesCompetition Horses
FatFat
Weight IssuesWeight Issues
Amplify High Fat Supplement is an extruded fat supplement that includes rice bran, flax seed and vegetable oil. It provides added calories for horses that have higher energy needs.
Anti-Carb (Pellets) (MVP)
HealthHealth
MetabolismMetabolism
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
Anti-Carb by MVP is a pelleted supplement that intends to provide support to maintain blood sugar levels. It contains magnesium oxide and magnesium proteinate ingredients.
Anti-Stress Herbal Pellets (St.Hippolyt)
CalmingCalming
HerbHerb
RecoveryRecovery
StressStress
Anti-Stress Herbal Pellets by St.Hippolyt is an herbal supplement containing valerian and magnesium, intended to help horses in stressful situations.
Apple Elite Electrolyte (Farnam)
ElectrolyteElectrolyte
ExerciseExercise
HydrationHydration
RecoveryRecovery
Farnam Apple Elite Electrolyte is a powdered supplement containing salt (sodium chloride), potassium, calcium, magnesium. Apple Elite Electrolytes can be used to replace electrolytes lost in sweat. It is a sugar-free formula that contains artificial apple flavouring.
Apple Elite Electrolyte Pellets (Farnam)
ElectrolyteElectrolyte
HealthHealth
HydrationHydration
Organic Trace MineralsOrganic Trace Minerals
pple Elite Electrolyte Pellets by Farnam are easy-to-feed, apple-flavoured pellets that help encourage healthy water consumption. They’re formulated with sodium chloride, potassium, magnesium, and calcium.
Apple-Lyte Electrolytes (Meal) (MVP)
ElectrolyteElectrolyte
ExerciseExercise
FlavorFlavor
StressStress
Apple-Lyte Electrolytes by MVP is a premixed supplement that is a palatable apple-flavoured source of electrolytes intended for horses during dehydration, heat, or stress. It contains ingredients such as dextrose, salt, and magnesium silicate.
Arizona Copper Complete (Horse Tech)
HealthHealth
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
VitaminsVitamins
Arizona Copper Complete is a vitamin and mineral supplement for horses containing copper and other trace minerals in an organic amino acid complex. The supplement also provides vitamins and amino acids in a milled flax base.
Artoa Pellets (Ametza)
FiberFiber
ForageForage
GrainsGrains
PerformancePerformance
Artoa Pellets by Ametza is a pelleted feed that provides energy through sources such as alfalfa hay and cracked corn. It contains a low grain level to minimize a variety of metabolic issues.
Athlete (Dunstan)
Competition HorsesCompetition Horses
ExerciseExercise
Mineral BalanceMineral Balance
VitaminsVitamins
Athlete by Dunstan is a semi-concentrate complete feed that is intended to meet the requirements of performance horses.
Athlete Plus (Mitavite)
Gut HealthGut Health
PerformancePerformance
ProteinProtein
RecoveryRecovery
Athlete Plus by Mitavite is a cool energy feed intended to support performance horses in competition and recovery.
Balance I (AniMed)
Amino AcidAmino Acid
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Balance I from AniMed is a supplement that states it aids in health and body condition of horses by containing amino acids, fatty acids, vitamins and minerals, and antioxidants. It claims to be formulated for horses fed alfalfa hay.
Balance II (AniMed)
Amino AcidAmino Acid
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Balance II from AniMed is a supplement that states it aids in health and body condition of horses by containing amino acids, fatty acids, vitamins and minerals, and antioxidants. It claims to be formulated for horses fed grass hay.
Balance Supplement (Peninsula Performance Feeds)
HealthHealth
ImmunityImmunity
Mineral BalanceMineral Balance
NutritionNutrition
Balance Supplement from Peninsula Performance Feeds is a pelleted ration balancing supplement for horses. Balance Supplement contains chelated trace minerals and is intended to be fed as the sole ration for easy keepers.
Balanced (Hygain)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
VitaminsVitamins
Balanced by Hygain is a feed intended to be fed as a ration balancer, providing a protein level of 25%, minerals, and vitamins for easy keepers or horses on a pasture-only diet.
Balanced Pelleted Horse Mineral (Equiline)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Balanced Pelleted Horse Mineral from Equiline is a pelleted supplement that is meant to provide vitamins and minerals to meet the needs of adult horses. It can be supplied to horses eating hay or grain and any activity level.
Balancer (Triple Crown)
Easy KeeperEasy Keeper
Metabolic SyndromeMetabolic Syndrome
NutritionNutrition
Ration BalancerRation Balancer
Triple Crown® Balancer is a pelleted mineral and vitamin supplement providing 30% protein, 3% fat and 5% fibre. This ration balancer contains essential amino acids, vitamins, macro minerals, trace minerals, bacteria and enzymes.

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