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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.
Original® 12 Pelleted (McCauley’s Equine Formulas)
BroodmareBroodmare
Feed EfficiencyFeed Efficiency
Ration BalancerRation Balancer
StallionStallion
McCauley's Original® 12 Pelleted is a palatable and digestible oat-based feed for broodmares and stallions. It provides 12% protein, 12% fiber, 3.5% fat, and contains organic minerals.
Original® 16 Pelleted (McCauley’s Equine Formulas)
Feed EfficiencyFeed Efficiency
FoalFoal
GrowthGrowth
LactationLactation
Original® 16 Pelleted is an oat-based feed targeted to breeding horses and yearlings. It provides 16% crude protein and is formulated for growing horses.
Orphan Foal Supplement (Dunstan)
FoalFoal
GrowthGrowth
NutrientsNutrients
ProteinProtein
Orphan Foal by Dunstan is a palatable, digestible feed intended for introducing foals to solid feed. It is a blend of milk powder, vegetable proteins, cereals, vitamins and minerals. It is intended to encourage the transition from milk to solid diet.
Osteo-Gen (Equi-Force)
Bone HealthBone Health
ExerciseExercise
GrowthGrowth
JointsJoints
Osteo-Gen is a supplement that is intended to promote bone health and cartilage repair. It is suitable for horses of all ages and work levels.
Outlast Gastric Support Supplement (Purina)
ColicColic
DigestionDigestion
Gut HealthGut Health
UlcersUlcers
Purina® Outlast® Gastric Support Supplement is an equine gut product designed to support gastric health and pH balance. The primary active ingredients include alfalfa and seaweed-derived calcium.
Parkmore Special Vitamin/Mineral Pelleted Supplement (Parkmore Supplements)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Parkmore Special Vitamin/Mineral Pelleted Supplement is a trace mineral and vitamin supplement designed for all ages and working classes of horses. It can be fed in addition to grain or on its own.
Pastime (McCauley’s Equine Formulas)
Feed EfficiencyFeed Efficiency
HealthHealth
NutritionNutrition
Ration BalancerRation Balancer
Pastime is an oat-based pelleted feed for adult horses at maintenance or in light work. It targets pleasure horses with lower energy density and fat content.
Pasture Cubes (Dodson & Horrell)
Complete FeedComplete Feed
GrainsGrains
HerbHerb
NutritionNutrition
Pasture Cubes by Dodson & Horrell is a feed that is lower in protein and has an elevated fibre level. This feed is for horses and ponies that need some additional fibre and vitamins, and minerals in their diet.
Pasture Lick (DAC)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Pasture Lick by DAC is a vitamin and mineral supplement lick for mature horses. It is formulated with Vitamin E, biotin, and yeast.
Pasture Lick (Saracen Horse Feeds)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Pasture Lick is a vitamin and mineral lick intended to be supplied to horses on pasture or on a forage-based diet.
Pasture Mix (Dodson & Horrell)
Complete FeedComplete Feed
FlavorFlavor
GrainsGrains
NutritionNutrition
Pasture Mix by Dodson & Horrell is a textured feed that is lower in protein and has an elevated fibre level. This feed is for horses and ponies that need some additional fibre and vitamins, and minerals in their diet.
Pasture Plus (Dunstan)
BroodmareBroodmare
MareMare
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
Pasture Plus by Dunstan is an extruded mineralized nugget intended to supply the mineral requirements of pregnant mares that live on pasture. It is formulated for New Zealand Horses living under the environmental conditions found in New Zealand.
Patriot 36 Ration Balancer (ADM Animal Nutrition)
Mineral BalanceMineral Balance
NutrientsNutrients
ProteinProtein
VitaminsVitamins
Patriot 36 Ration Balancer by ADM Animal Nutrition is a pelleted supplement that provides protein, vitamins, and minerals for all types of horses. It should be fed along with hay or pasture (forage) and any grain or concentrate feeds.
Patriot Feed Easy Complete (ADM Animal Nutrition)
Feed EfficiencyFeed Efficiency
FiberFiber
Gut HealthGut Health
PerformancePerformance
Patriot Feed Easy is a pelleted complete forage/feed mix designed to meet the nutritional needs of mature horses when forage supplies are low. It provides less than 20% NSC.
Patriot Mare & Foal Horse Feed (ADM Animal Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Patriot Mare & Foal is a pelleted complete feed designed to meet the needs of gestating and lactating mares as well as foals from 0 to 18 months of age. Patriot Mare & Foal is palatable to encourage consumption.
Patriot Performance Horse Feed (ADM Animal Nutrition)
Complete FeedComplete Feed
EnergyEnergy
ExerciseExercise
PerformancePerformance
Patriot Performance is a pelleted complete feed that is formulated for mature performance horses and broodmares. It provides vegetable fat and digestible fibre sources and contains ~20% NSC.
Patriot Quick Performance (ADM Animal Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
ExerciseExercise
PerformancePerformance
Patriot Quick Performance is a pelleted feed formulated for use when forage supply is limited. It contains 20 - 30% NSC and is intended for mature athletic horses that require additional energy.
Patriot Senior Complete Horse Feed (ADM Animal Nutrition)
Complete FeedComplete Feed
FiberFiber
SeniorSenior
ToplineTopline
Patriot Senior is a pelleted complete forage-feed product for senior horses. It is designed to be easy to chew and to meet nutritional needs when forage availability is low.
Payback Rice Bran Pellets (CHS Nutrition)
Coat QualityCoat Quality
EnergyEnergy
FatFat
FiberFiber
Payback Rice Bran Pellets by CHS Nutrition is a pelleted feed intended to provide energy and support coat quality in all horse types.
Pectigus ADVANCED (Hestevard)
Competition HorsesCompetition Horses
DigestionDigestion
Gut HealthGut Health
RecoveryRecovery
Pectigus ADVANCED by Hestevard is a pelleted supplement intended to support gut function and health in horses requiring regular maintenance, and horses during intense training, competition, or recovery.
Pectigus Balancer Maintenace Diet (Hestevard)
Gut HealthGut Health
HealthHealth
Low NSC FeedsLow NSC Feeds
ProbioticProbiotic
Pectigus Balancer Maintenance Diet by Hestevard is a pelleted feed intended to support gut function and overall health in all horses and ponies.
PegaVite (Equestrizone)
IngredientIngredient
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
PegaVite from Equestrizone provides essential daily vitamins and minerals to balance equine diets. It provides ingredients such as calcium carbonate and monocalcium phosphate that forage and concentrate grains may be lacking.
Pennwoods 13 to 36 Advanced (Pennwoods Equine)
FatFat
FoalFoal
GrowthGrowth
ProteinProtein
Pennwods 13 to 36 Advanced is a growth and performance supplement targeted to yearling and two-year-old horses. It contains a blend of proteins, fats, vitamins, and minerals.
Perfect Balance Electrolite Paste (Peak Performance Nutrients)
ElectrolyteElectrolyte
HydrationHydration
PerformancePerformance
RecoveryRecovery
Perfect Balance Electrolite Paste is an equine supplement containing vitamins and minerals to replenish the nutrients lost during intense exercise. It contains sodium chloride, potassium chloride, and calcium carbonate to supply the electrolytes lost.
Perfect Balance Electrolite Powder (Peak Performance Nutrients)
ElectrolyteElectrolyte
ExerciseExercise
HydrationHydration
RecoveryRecovery
Perfect Balance Electrolite Powder is a powdered supplement containing vitamins and minerals to replenish the nutrients lost during intense exercise. It contains sodium chloride, potassium chloride, and calcium carbonate to supply the electrolytes lost.
Perfect Gentleman (Dodson & Horrell)
CalmingCalming
HealthHealth
HerbHerb
StressStress
Perfect Gentleman by Dodson & Horrell is a textured herbal supplement that intends to promote an even temperament in geldings exhibiting inappropriate behaviour. It contains chamomile, lemon balm, and magnesium oxide.
Perfect-Performance Horse Ration (Pure Performance Feed / Farmstead Life)
Complete FeedComplete Feed
NutritionNutrition
PerformancePerformance
ProteinProtein
Perfect-Performance Horse Ration is a textured feed designed for performance horses with high protein levels, fibre, and added prebiotics and probiotics. This feed contains zero corn, soy, or beet pulp.
Perfectly Senior Horse Summer Pellet (Kruse’s Perfection Brand)
FiberFiber
GrainsGrains
JointsJoints
SeniorSenior
Perfectly Senior Horse Summer Pellet by Kruse's Perfection Brand is a pelleted feed that is intended to be fed to senior maintenance, performance, and breeding horses. This feed is meant to be fed as a complete feed or supplemented with hay or pasture equivalent.
Perfectly Senior Horse Winter Pellet (Kruse’s Perfection Brand)
BroodmareBroodmare
Complete FeedComplete Feed
PerformancePerformance
SeniorSenior
Perfectly Senior Horse Winter Pellet by Kruse's Perfection Brand is a feed that intends to be fed to senior maintenance, performance, and breeding horses either as a complete feed or supplemented with hay or pasture equivalent.
Perform ‘N Win Electrolyte (BUCKEYE Nutrition) – [Discontinued]
Competition HorsesCompetition Horses
ElectrolyteElectrolyte
PerformancePerformance
StaminaStamina
Perform 'N Win is a now-discontinued electrolyte formula sold by Buckeye Nutrition. Perform 'N Win was formulated to meet the needs of competitive endurance horses and to promote increased stamina.
Perform Gold (Triple Crown)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
FatFat
FiberFiber
Perform Gold is a high energy density pelleted feed designed for performance horses. It provides 12.5% protein, 12% fat and 15.3% NSC, and contains a mixture of organic and inorganic minerals.
Perform Safe (Seminole)
Complete FeedComplete Feed
EnergyEnergy
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Perform Safe™ is a low-starch, high-fat pelleted feed targeted to growing, breeding and mature performance horses. It contains 12% protein and 8% fat with energy sources such as soybean hulls, beet pulp and rice bran.
Perform Time (Capstone Horse Feed)
DigestionDigestion
HealthHealth
NutrientsNutrients
PerformancePerformance
Perform Time by Capstone Horse Feed is an oat-free pelleted feed intended for high performance horses.
Performa Care Balancer (Red Mills)
Competition HorsesCompetition Horses
ImmunityImmunity
MuscleMuscle
NutritionNutrition
Performa Care Balancer from Red Mills is intended for performance horses or used as a topper for a low-concentrate feed. This feed contains 43% starch, 30% protein, and 9% fiber.
Performance 12 (Excel Equine Feeds)
ExerciseExercise
HealthHealth
NutritionNutrition
PerformancePerformance
Performance 12 is a textured feed from Excel Equine Feeds. This feed contains fat sources and digestible fibre intended to support the needs of performance horses.
Performance 14 (Havens Horsefeed)
Caloric EnergyCaloric Energy
ExerciseExercise
MuscleMuscle
PerformancePerformance
Havens Performance 14 is a high-energy feed for equine athletes. This feed contains banana flakes and extra electrolytes to maintain fluid balance, muscle contraction, and neural activity. It has 14% crude protein and 31% NSC with ingredients such as wheat, alfalfa meal, and oats.
Performance Advantage (Tribute Equine)
EnergyEnergy
FatFat
FoalFoal
PerformancePerformance
Tribute Performance Advantage® is a grain-based, textured feed formulated to meet the higher energy requirements of performance horses. It provides 8% fat and 31% NSC.
Performance Balancer (Dodson & Horrell)
Hoof HealthHoof Health
JointsJoints
PerformancePerformance
Ration BalancerRation Balancer
Performance Balancer is a performance feed meant to be fed as a low intake feed or alongside another feed. This feed provides the vitamins and minerals to support joint care, a higher level of biotin for hoof support, and yeast for a healthy hindgut.
Performance Concentrate Muesli (Dodson & Horrell)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
VitaminsVitamins
Performance Concentrate Muesli by Dodson & Horrell is a high protein feed with a concentrated amount of vitamins and minerals. This feed is to be fed with oats and offers additional antioxidants and hoof support.
Performance Equine Mineral and Vitamin Formulation (Wild Gold)
ElectrolyteElectrolyte
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Performance Equine Mineral and Vitamin Formulation by Wild Gold is a premixed supplement that is intended to provide vitamins, minerals, and probiotics to support optimal nutrient absorption.
Performance Horse (New Country Organics)
HindgutHindgut
NutritionNutrition
PerformancePerformance
YeastYeast
Performance Horse by New Country Organics is a textured supplement intended for maintenance diets for horses with moderate energy demands. It contains a mixture of oats, peas, barley, alfalfa pellets, kelp, and probiotics.
Performance Horse Mineral (Hoffman’s Horse Products)
Mineral BalanceMineral Balance
PerformancePerformance
RecoveryRecovery
VitaminsVitamins
Hoffman's Performance Horse Mineral is a pelleted mineral and vitamin supplement that provides a mix of organic and inorganic trace minerals. This supplement can be provided free-choice or as a top dressing with feed.
Performance Horsepower (ProHeritage Feeds)
FatFat
NutrientsNutrients
PerformancePerformance
YeastYeast
Performance Horsepower from ProHeritage Feeds is a feed that is high in fat and it is intended for working and performance horses. It also contains vitamins, minerals, and yeast.
Performance Liquid (Formula 707)
Mineral BalanceMineral Balance
NutrientsNutrients
PerformancePerformance
VitaminsVitamins
Performance Liquid from Formula 707 is a liquid supplement containing vitamins and minerals. It is intended to provide energy and nutrients for performance horses.
Performance Minerals (Platinum Performance)
Bone HealthBone Health
Mineral BalanceMineral Balance
NutritionNutrition
Organic Trace MineralsOrganic Trace Minerals
Performance Minerals by Platinum Performance is a trace mineral supplement formulated to support healthy growth and development.
Performance One (Pureform)
Competition HorsesCompetition Horses
ElectrolyteElectrolyte
ExerciseExercise
PerformancePerformance
Performance One is a concentrated supplement for performance horses providing glucosamine, MSM, creatine, amino acids, vitamins, trace minerals and electrolytes.
Performance Pelleted (Woody’s Horse Nutrition)
Competition HorsesCompetition Horses
FatFat
PerformancePerformance
ProteinProtein
Woody’s Performance Pelleted is a complete pelleted feed with higher energy density for working horses. It is formulated with beet pulp, alfalfa meal and oats, and contains 14% protein and 8% fat.
Performance Plus Complete (Bluebonnet Feeds)
FiberFiber
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Performance Plus Complete from Bluebonnet Feeds is an alfalfa-based pellet intended to replace some or all of the forage in a horse's diet. It contains 12% crude protein, 3.5% crude fat, and 29% crude fibre.
Performance Senior (Daily Dose Equine)
FatFat
FiberFiber
PerformancePerformance
SeniorSenior
Performance Senior by Daily Dose Equine is a textured feed that provides a high-calorie diet with 15% fat that is ideal for senior horses with dental issues or hard keepers.
Performance Textured (ProElite)
Complete FeedComplete Feed
Competition HorsesCompetition Horses
PerformancePerformance
StaminaStamina
ProElite Performance Horse Feed is a textured feed intended for mature show and performance horses. It provides 12% fat and 18.3% NSC with energy sources including beet pulp, whole oats, wheat middlings, soybean hulls, and cane molasses.

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