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Magnesium - Feed Ingredient

Magnesium is an essential mineral required for numerous physiological functions in horses. It plays a critical role in muscle contraction, nerve transmission, enzyme activity, and energy metabolism. As a macromineral, magnesium is necessary for maintaining normal neuromuscular function and supporting overall metabolic processes.

In equine nutrition, magnesium is commonly included in feed formulations and supplements to ensure adequate dietary intake. Deficiency in magnesium can lead to symptoms such as nervousness, muscle tremors, and poor coordination. While magnesium is naturally present in forages, supplementation may be necessary for horses with increased needs. Common supplemental sources include magnesium oxide, magnesium sulfate, and magnesium carbonate, each varying in bioavailability and digestibility

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

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
HealthHealth
HerbHerb
Metabolic SyndromeMetabolic Syndrome
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 anti-inflammatory support which is critical for horses with metabolic conditions such as insulin resistance, laminitis and Cushing’s Syndrome
Magnesium Oxide (Mad Barn)
CalmingCalming
HealthHealth
IngredientIngredient
MuscleMuscle
Magnesium Oxide is a concentrated source of mineral magnesium that can be added to equine diets. Magnesium supplementation has been shown to have a calming effect in nervous horses, as well as support proper muscle function.
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.
Omneity Premix – Vitamin & Mineral Supplement (Mad Barn)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Omneity Premix is a balanced mineral and vitamin supplement for horses providing 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.
Visceral+ (Mad Barn)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
UlcersUlcers
YeastYeast
Visceral+ by Mad Barn is a pelleted supplement to be used for horses with gastric health concerns. It is designed to maintain stomach and hindgut health and to support the immune system.
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.
B.C.A.A Complex Powder (Peak Performance Nutrients)
Amino AcidAmino Acid
MuscleMuscle
PerformancePerformance
RecoveryRecovery
B.C.A.A Complex Powder is a branched-chain amino acid supplement for horses containing L-Valine, L-Leucine, and L-Isoleucine. This product supports muscle metabolism and is intended for performance horses.
Back in Balance Equine Mineral – [Discontinued]
HealthHealth
Organic Trace MineralsOrganic Trace Minerals
Ration BalancerRation Balancer
VitaminsVitamins
Back in Balance Equine Mineral is a now-discontinued mineral premix for horses and other species. It used kelp as the ingredient carrier and provided organic trace minerals.
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 feed that intends to be fed as a ration balancer, providing a protein level of 25%, minerals, and vitamins for horses that are easy keepers or 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.
Balancer Gold (Triple Crown)
Easy KeeperEasy Keeper
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
Balancer Gold is a soy-free ration balancer with 13.5% protein, 4.5% fat and 14.2% NSC. It has a lower feeding rate and can be used alone or in combination with other complete feeds or feed ingredients.
BalancI.R. Ration (Hoffman’s Horse Products)
Complete FeedComplete Feed
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
Hoffman's BALANCI.R. Horse Ration is an 11% NSC pelleted feed for horses that require a low-starch diet. Energy sources include soybean hulls, stabilized rice bran, malt sprouts, and oat hulls.
Barn Bag (Life Data Labs Inc)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Barn Bag by Life Data Labs Inc is a pelleted supplement that is intended as a ration balancer for the easy keepers and horses on pasture. It is a low-calorie and low-starch feed that provides vitamins, minerals, amino acids, and fatty acids.
Base Mix P55 (Uckele)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Base Mix P55 is a powdered vitamin and mineral supplement intended for pregnant or lactating mares, growing foals, and performance horses. This supplement contains balanced calcium to potassium ratio.
Be Calm Balancer (Dodson & Horrell)
AntioxidantAntioxidant
CalmingCalming
HerbHerb
Ration BalancerRation Balancer
Be Calm Balancer is a feed designed for anxious and sensitive horses. This feed is lower in starch and provides a blend of calming herbs. It also contains a high level of biotin for hoof support.
BeCalm (Enviro Equine)
CalmingCalming
DigestionDigestion
Gut HealthGut Health
PerformancePerformance
BeCalm by Enviro Equine is a supplement intended to promote calmness and focus by supporting the gut. It is designed to support horses during travel, training, and competition.
Bermuda Pellets (Ametza)
FiberFiber
ForageForage
Mineral BalanceMineral Balance
VitaminsVitamins
Bermuda Pellets by Ametza is a pelleted feed that contains Bermuda hay. This feed is intended for animals with allergies to alfalfa or those that need a low protein feed due to metabolic issues.
BetaCALM Powder (Kelato)
CalmingCalming
Mineral BalanceMineral Balance
StressStress
VitaminsVitamins
BetaCALM Powder from Kelato is a supplement that is meant to calm anxiety and stress. It is a source of thiamine, magnesium, tryptophan, and vitamin E.
Big 6 Mineral Salt (American Stockman)
HealthHealth
Mineral BalanceMineral Balance
PerformancePerformance
Weight IssuesWeight Issues
Big 6 Mineral Salt from American Stockman is a mineral supplement in block or bag form. It is intended to support weight gain, performance and health.
Bio-Balance – CBD + Magnesium Pellets (MVP)
CalmingCalming
HerbHerb
JointsJoints
StressStress
Bio-Balance Pellets is a CBD supplement for horses that intends to support balanced behaviour. It also contains magnesium which may help with relaxation.
BioMane Equine Pellets (BioMane)
Amino AcidAmino Acid
Coat QualityCoat Quality
Mineral BalanceMineral Balance
VitaminsVitamins
BioMane Equine Pellets is a horse supplement containing amino acids, vitamins and minerals designed to support hair health. The pellets are composed of organic and inorganic minerals, and contain 14% crude protein, 5% fat and 6% fiber.
BioMare Cubes (Pryde’s EasiFeed)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
BioMare Cubes by Pryde's EasiFeed is an extruded feed intended to support fertility and milk production in broodmares, and growth in weanlings, yearlings, and 2 year olds.
BioMAX Plus (Sierra Gold)
Amino AcidAmino Acid
JointsJoints
Mineral BalanceMineral Balance
RecoveryRecovery
BioMAX Plus from Sierra Gold is a supplement that contains glucosamine and chondroitin. It is intended to support joint health, and recovery from injuries or competition.
Bioplex Magnesium (Uckele)
MetabolismMetabolism
Mineral BalanceMineral Balance
MuscleMuscle
NutrientsNutrients
Uckele Bioplex Magnesium is an organic source of the macromineral magnesium in an amino acid complex (proteinate). It provides 1690mg of elemental magnesium per scoop which helps to naturally balance the actions of Calcium.
Blitz! Pak (Peak Performance Nutrients)
ElectrolyteElectrolyte
HerbHerb
Mineral BalanceMineral Balance
VitaminsVitamins
Blitz! Pak by Peak Performance Nutrients is a vitamin and mineral supplement which is intended to be provided before a horse event. It contains electrolytes, amino acids, and a blend of herbs.
Blitz! Paste Comfort Blend (Peak Performance Nutrients)
ExerciseExercise
HerbHerb
RecoveryRecovery
StaminaStamina
Blitz! Paste Comfort Blend by Peak Performance Nutrients is a vitamin and mineral supplement intended to be provided before a horse event. It contains electrolytes and amino acids intended to aid performance and recovery.
Blitz! Paste Original Formula (Peak Performance Nutrients)
ElectrolyteElectrolyte
PerformancePerformance
RecoveryRecovery
StaminaStamina
Blitz! Paste Original Formula is a vitamin and mineral supplement meant to be provided before a horse event. It contains electrolytes, amino acids, and a blend of herbs intended to aid performance during the event and recovery.
BLK (NAF Equine)
Blood CellsBlood Cells
HealthHealth
ImmunityImmunity
YeastYeast
BLK from NAF Equine is intended for all horses and ponies. This supplement is meant to support the liver and kidneys to help detoxify the horse's body.
Blue Label 2X (Pennwoods)
HealthHealth
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Blue Label 2X by Pennwoods is a complete vitamin and mineral supplement designed for horses that contains added amino acids and yeast.
Blueprint Equine Premix GFC (Masterfeeds)
HealthHealth
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Blueprint Equine Premix GFC is a powdered vitamin and mineral supplement to balance forage-based diets. It contains organic trace minerals, yeast meant to support the digestive system and garlic to repel flies and insects.
Bonanza Tuff Horse (Mid-America Feeds)
EnergyEnergy
NutrientsNutrients
NutritionNutrition
VitaminsVitamins
Bonanza Tuff Horse by Mid-America Feeds is a pelleted complete feed intended for all types of horses.
Bone Builder (AniMed)
Bone HealthBone Health
GrowthGrowth
NutrientsNutrients
PerformancePerformance
AniMed's Bone Builder is a supplement that provides nutrients in balanced and sufficient amounts. It is meant to help achieve strong bones in young and growing horses and also for equine athletes.
Bonza Horse (Bonza)
Mineral BalanceMineral Balance
MuscleMuscle
Skin + HairSkin + Hair
StaminaStamina
Bonza Horse by Bonza is a powdered mineral equine supplement that can be mixed with feed or dissolved in water. It is intended to support overall health in horses.
Boost ‘Em (Bluebonnet Feeds)
HealthHealth
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
Boost 'Em is a pelleted diet balancer from Bluebonnet Feeds that contains protein, fat, vitamins and minerals to contribute to the general health of horses and livestock.
Boredom Buster (Equi-lete)
Mineral BalanceMineral Balance
NutrientsNutrients
NutritionNutrition
VitaminsVitamins
Boredom Buster by Equi-lete is a hanging treat containing vitamins and minerals. It is intended for stalled horses experiencing boredom.
BOS Equus (The Horse Food)
Grain FreeGrain Free
NutrientsNutrients
Omega 3-6-9Omega 3-6-9
ProteinProtein
BOS Equus by The Horse Food is a seed-meal-based feed high in protein and fat. It is intended for any type of horse for any age.
Brandon Plus Respiraticum (St.Hippolyt)
HerbHerb
RecoveryRecovery
RespiratoryRespiratory
VitaminsVitamins
Brandon Plus Respiraticum by St.Hippolyt is a pelleted supplement intended to support respiratory function in horses.
Breeda (Mitavite)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
StallionStallion
Breeda by Mitavite is a complete feed intended to meet the nutritional needs of young stock, breeding and performance horses.
Breeder Tub (Agassiz Feeds)
BroodmareBroodmare
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Breeder Tub by Agassiz Feeds is a mineral and vitamin lick designed for breeding beef cattle. It is molasses-based with no added salt and designed for free-choice use.
Breeders Choice Plus (DAC)
BroodmareBroodmare
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Breeders Choice Plus by DAC is a powdered vitamin and mineral supplement designed for breeding horses. It contains trace minerals, selenium, and probiotics.
Broodmare & Growth (Lifeline)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Lifeline Broodmare & Growth Horse Feed is a textured feed intended for pregnant mares, foals, weanlings and yearlings.
Broodmare Yearling (Equine Advantage)
BroodmareBroodmare
GrainsGrains
PerformancePerformance
StallionStallion
Broodmare Yearling is formulated to help promote healthy growth and development in horses and ponies. This feed is ideal for broodmares, lactating mares, and breeding stallions to provide essential nutrients.
Build Up Conditioning Mix (Dodson & Horrell)
Caloric EnergyCaloric Energy
FatFat
NutritionNutrition
Weight IssuesWeight Issues
Build Up Conditioning Mix is a textured feed designed for horses that need to gain some weight or horses prone to weight loss. This feed includes vitamins and minerals, an elevated level of protein, and fibre to help with optimal digestion.
Builda (Mitavite)
Complete FeedComplete Feed
Coat QualityCoat Quality
Hoof HealthHoof Health
NutritionNutrition
Builda by Mitavite is a complete feed intended to maintain or build condition.
C-400 Hoof Activ Repair (Royal Horse)
HealthHealth
Hoof HealthHoof Health
ImmunityImmunity
NutritionNutrition
C-400 Hoof Activ Repair from Royal Horse is a pelleted hoof supplement. C-400 Hoof Activ Repair is intended to increase hoof growth and quality in horses who have hoof issues.
CADENCE Textured Feed (BUCKEYE Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Competition HorsesCompetition Horses
ToplineTopline
CADENCE™ Textured Feed is a palatable, calorie-dense feed formulated to meet the energy requirements of performance horses. It provides 10% fat with 25% NSC.
CADENCE™ Ultra Sweet Pelleted Feed (BUCKEYE Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
DigestionDigestion
FlavorFlavor
CADENCE™ Ultra Sweet Pelleted Feed is a 14% fat and 14% fibre feed designed to provide high-calorie density. It is a sweet feed that contains 22% NSC with added cane molasses.
Caliber Mare & Foal Ration (Co-op)
BroodmareBroodmare
GrowthGrowth
LactationLactation
NutritionNutrition
Caliber Mare & Foal Ration is a high protein feed intended for broodmares and growing foals. It is designed with higher nutrient density to meet the needs of gestating and lactating mares.
Caliber Performance Horse Mineral (Coop Agro)
Amino AcidAmino Acid
Organic Trace MineralsOrganic Trace Minerals
PrebioticPrebiotic
VitaminsVitamins
Caliber Performance Horse Mineral is a vitamin and mineral supplement for horses with added amino acids, prebiotics, molasses and vegetable fat. It also contains corn distillers’ grains and alfalfa.
Caliber Performance Horse Ration (Co-op)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
ProteinProtein
Caliber Performance is a high energy textured feed intended for mature performance horses. It provides high protein (15.5%) and moderate fat (5.5%) content.

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