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Ingredient

Magnesium

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.

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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.
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 gut supplement designed to support stomach and hindgut health in horses. It helps maintain normal digestive function, supports gastric comfort, and helps maintain the immune system.
Natural Balance (Havens Horsefeed)
Caloric EnergyCaloric Energy
FiberFiber
NutritionNutrition
Omega 3-6-9Omega 3-6-9
Natural Balance by Havens Horsefeed is an oat- and molasses-free textured feed. It contains wheat, puffed corn, alfalfa meal, and added vitamins and minerals. This feed is intended for nervous horses and those prone to laminitis, summer itch, and insulin resistance.
Natural Blend Performance (Bluebonnet Feeds)
GrainsGrains
NutrientsNutrients
PerformancePerformance
ProbioticProbiotic
Natural Blend Performance from Bluebonnet Feeds is intended for horses at all life stages with added soybean as a source of fat. It contains 12% protein, 10% fat, and 15% fibre, with added probiotics and organic trace minerals.
Natural Digestive Support – BioEquine Supplement
DigestionDigestion
Mineral BalanceMineral Balance
ProbioticProbiotic
Toxin BinderToxin Binder
BioEquine Natural Digestive Support is an equine gut health supplement containing probiotics, toxin binders, Diatomaceous Earth, minerals, vitamins and amino acids.
Naturals Pelleted Horse Feed (Triple Crown)
Complete FeedComplete Feed
EnergyEnergy
NutritionNutrition
ProteinProtein
Triple Crown Naturals is a pelleted horse feed made with GMO-free ingredients and without corn, soybean, or molasses. Energy sources include alfalfa meal, ground oats, wheat middlings, and flaxseed.
Naturals Timothy Balance Cubes (Triple Crown)
FiberFiber
ForageForage
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Triple Crown Naturals Timothy Balance® Cubes are a forage replacement composed of timothy hay, beet pulp, and added minerals. Forage cubes are a high-fibre, low-protein, and low-NSC feed option for horses with metabolic concerns.
NaviculaSaver (Bursitex)
HealthHealth
HerbHerb
JointsJoints
Mineral BalanceMineral Balance
NaviculaSaver from Bursitex is an all-natural nutraceutical intended to support navicular health. This supplement contains glucosamine, MSM, and hyaluronic acid intended to promote joint health in horses.
NaviculaSaver (Figuerola Laboratories)
AntioxidantAntioxidant
Bone HealthBone Health
HealthHealth
Hoof HealthHoof Health
NaviculaSaver by Figuerola Laboratories is a bone supplement. It is formulated with glucosamine, chondroitin, MSM, and hyaluronic acid.
Next Level Joint (pellet) (Farnam)
ExerciseExercise
GrowthGrowth
JointsJoints
SeniorSenior
Next Level Joint by Farnam is pelleted supplement that contains glucosamine, chondroitin, perna mussel and MSM. The recommended feeding rate is 1 oz (30 grams) per day.
Nice -N- Eze (Cox Vet Lab)
Amino AcidAmino Acid
MetabolismMetabolism
Metabolic SyndromeMetabolic Syndrome
MuscleMuscle
Nice-N-Eze is a calming supplement intended to help horses during stressful situations such as competition and travelling.
Nicker Makers (Purina)
FlavorFlavor
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Nicker Makers by Purina is a highly palatable horse treat intended for adult horses.
No.10 Racehorse Mix (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
GrainsGrains
PerformancePerformance
No.10 Racehorse Mix by Baileys Horse Feeds is intended for racehorses in moderate to heavy work. This feed contains readily available energy from ingredients such as micronized peas, micronized maize, micronized soya beans, and bruised oats.
No.11 Racehorse Cubes (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
GrainsGrains
NutritionNutrition
PerformancePerformance
Baileys Horse Feeds No. 11 Racehorse Cubes are intended for racehorses in moderate to heavy work that selectively feed. This pelleted feed contains 26% starch and 13% protein.
No.14 Lo-Cal Balancer (Baileys Horse Feeds)
Easy KeeperEasy Keeper
Hoof HealthHoof Health
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
No.14 Lo-Cal Balancer from Baileys Horse Feeds is intended for horses and ponies at rest or in light work or those who are laminitis prone. This feed contains 30mg/kg of Biotin, which is proven to support hoof health.
No.15 Senior Mix (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
GrainsGrains
NutritionNutrition
SeniorSenior
No.15 Senior Mix from Baileys Horse Feeds is a feed mix intended for senior horses and ponies. This feed mix contains 27% starch, 14% fiber, and 12.5% protein.
No.16 Racing Light Mix (Baileys Horse Feeds)
Complete FeedComplete Feed
ExerciseExercise
NutritionNutrition
PerformancePerformance
No.16 Racing Light Mix from Baileys Horse Feeds is intended for racehorses with low energy requirements, including those on stall rest or recovery. This textured feed contains 12% protein which aids in muscle and tissue development and repair.
No.17 Top Line Conditioning Mix (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
GrainsGrains
ToplineTopline
Weight IssuesWeight Issues
No.17 Top Line Conditioning Mix from Baileys Horse Feeds is intended for underweight, competing, and young or weak horses and ponies needing to build a topline. This feed contains highly digestible starch as it is free from whole oats with cereals that have been micronized.
No.2 Working Cubes (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ExerciseExercise
GrainsGrains
No.2 Working Cubes from Baileys Horse Feeds is intended for horses and ponies in competition, heavy work, and young horses beginning training. This feed is high in fiber and low in starch, ideal for the horses and ponies mentioned above.
No.20 Slow Release Condition & Competition Mix (Baileys Horse Feeds)
Competition HorsesCompetition Horses
GrainsGrains
NutritionNutrition
Weight IssuesWeight Issues
No.20 Slow Release Condition & Competition Mix from Baileys Horse Feeds is intended for horses and ponies in heavy work to help them improve topline and condition. This feed contains 12% fiber and 10% fat which contributes to the slow release of calories.
No.21 Ease & Excel (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
FiberFiber
Gut HealthGut Health
UlcersUlcers
No.21 Ease & Excel from Baileys Horse Feeds is intended for excitable horses that need calories for condition and performance and those prone to gastric ulcers. This feed contains 18% fiber high in pectins and helps protect the stomach lining.
No.22 Prep-Ease (Baileys Horse Feeds)
CalmingCalming
Complete FeedComplete Feed
NutritionNutrition
ToplineTopline
No.22 Prep-Ease from Baileys Horse Feeds is targeted at young horses and ponies needing to gain topline/condition and those in early training. This feed has an NSC value of 25%.
No.23 Racing Light Cubes (Baileys Horse Feeds)
ExerciseExercise
NutritionNutrition
PerformancePerformance
RecoveryRecovery
No.23 Racing Light Cubes by Baileys Horse Feeds is intended for racehorses needing a low-calorie diet but still bale to provide adequate nutrients for growth, tissue repair, or recovery. The feed's primary energy source is the 20% fiber content.
No.24 Ease & Excel Cubes (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
PerformancePerformance
ProteinProtein
Weight IssuesWeight Issues
No.24 Ease & Excel Cubes from Baileys Horse Feeds is intended for performance horses and ponies with increased caloric intake requirements. This feed contains no whole cereal grains, which would slow the passage of the feed.
No.3 Stud & Youngstock Cubes (Baileys Horse Feeds)
BroodmareBroodmare
LactationLactation
NutrientsNutrients
StallionStallion
No.3 Stud & Youngstock Cubes from Baileys Horse Feeds is intended for pregnant and lactating horses, growing youngstock, and covering stallions.
No.4 Top Line Conditioning Cubes (Baileys Horse Feeds)
Competition HorsesCompetition Horses
ExerciseExercise
ToplineTopline
Weight IssuesWeight Issues
No.4 Top Line Conditioning Cubes from Baileys Horse Feeds is intended for underweight, performance, young, under muscled, and older (with poor dental health) horses and ponies. This feed contains 12.5% protein and 26% starch making it a very high-energy feed.
No.5 Yearling Cubes (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
FoalFoal
GrowthGrowth
MuscleMuscle
No.5 Yearling Cubes from Baileys Horse Feeds is intended for yearlings to three-year-olds. This pelleted feed mix is highly energy-dense, containing 32% starch and 15% protein.
No.6 All-Round Endurance Mix (Baileys Horse Feeds)
Competition HorsesCompetition Horses
FatFat
GrainsGrains
StaminaStamina
No.6 All-Round Endurance Mix from Baileys Horse Feeds is intended for performance horses needing a slow release of energy. The 10% fat content of this feed is what provides the slow release of energy.
No.7 Stud & Youngstock Mix (Baileys Horse Feeds)
FoalFoal
GrowthGrowth
NutritionNutrition
StallionStallion
No.7 Stud & Youngstock Mix from Baileys Horse Feeds is intended for growing youngstock, covering stallions, and pregnant and lactating mares. This feed contains 32% of starch, such as micronized peas, micronized maize, and oats.
No.8 Meadow Sweet With Turmeric (Baileys Horse Feeds)
FiberFiber
GrainsGrains
Gut HealthGut Health
NutritionNutrition
No.8 Meadow Sweet with Turmeric from Baileys Horse Feeds is high in fiber and low in starches and sugars. This feed is ideal for horses and ponies prone to laminitis and in moderate work and older horses.
No.9 All-Round Competition Mix (Baileys Horse Feeds)
Coat QualityCoat Quality
EnergyEnergy
ExerciseExercise
PerformancePerformance
No.9 All-Round Competition Mix from Baileys Horse Feeds is intended for performance horses and ponies. This feed contains 32% starch which comes from micronized cereals.
Nordic Vitamin Complete (Nordic Horse)
Low NSC FeedsLow NSC Feeds
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Nordic Vitamin Complete by Nordic Horse is a pelleted vitamin and mineral supplement intended for horses with intolerances or sensitive digestive systems.
Northwest Horse Supplement (NW)
AntioxidantAntioxidant
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Northwest Horse Supplement is a supplement containing trace minerals, yeast, antioxidants and vitamins. It is intended for stallions and performance, maintenance, and halter horses.
Nupafeed® Magnesium (Nupafeed)
CalmingCalming
HealthHealth
RecoveryRecovery
StressStress
Nupafeed® Magnesium is a daily liquid supplement for horses, containing magnesium aspartate hydrochloride. It is formulated to help reduce stress and relieve muscle tension
Nutrequin Classic Formula Supplement (Equistro)
HealthHealth
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
EQUISTRO's Nutrequin Classic is a vitamin and mineral supplement targeted to performance horses, pregnant mares and growing foals and weanlings. It contains inorganic minerals, wheat germ meal, alfalfa meal and mineral oil.
Nutrequin Elite (Equistro)
Mineral BalanceMineral Balance
NutritionNutrition
PerformancePerformance
VitaminsVitamins
Nutrequin Elite is a vitamin, mineral, and amino acid supplement formulated for performance horses as well as lactating and pregnant mares.
Nutri-Calm Gel (Foran Equine)
CalmingCalming
Competition HorsesCompetition Horses
PerformancePerformance
StressStress
Nutri-Calm Gel from Foran Equine is intended for nervous horses, traveling, and competition. This supplement is meant to support calming behavior in horses and ponies.
Nutri-Calm Syrup (Foran Equine)
CalmingCalming
Competition HorsesCompetition Horses
PerformancePerformance
StressStress
Nutri-Calm Syrup from Foran Equine is intended for nervous horses. This supplement contains magnesium, B vitamins, and Tryptophan which are meant to promote calming behavior.
Nutrimix Plus (Stride Animal Health) – [Discontinued]
Coat QualityCoat Quality
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Nutrimix Plus from Stride Animal Health is a vitamin and mineral supplement that can support healthy hooves. It can also contribute to hair and coat quality.
Oat Balancer (Dodson & Horrell)
Amino AcidAmino Acid
MareMare
Ration BalancerRation Balancer
StallionStallion
Oat Balancer by Dodson & Horrell is a ration balancer meant to be fed supplementally with oats. It provides a higher level of vitamin E to support milk quality and fertility.
Oat Balancer Cooked Mix (Red Mills)
BroodmareBroodmare
Competition HorsesCompetition Horses
PerformancePerformance
StallionStallion
Oat Balancer Cooked Mix from Red Mills is a feed intended for youngstock, racehorses, and breeding stock. This feed is designed to support performance, recovery, growth, bone integrity, and coat condition.
Oat Balancer Mix (Baileys Horse Feeds)
Caloric EnergyCaloric Energy
GrainsGrains
Ration BalancerRation Balancer
VitaminsVitamins
Oat Balancer Mix from Baileys Horse Feeds is intended for racehorses being fed a high oat diet in heavy work. This textured, high-energy feed is formulated to be fed alongside oats to counteract nutrient deficiencies that may come as a cause of feeding only oats.
Oestress (NAF Equine)
AntioxidantAntioxidant
CalmingCalming
HerbHerb
MareMare
Oestress from NAF Equine is intended to support hormonal balance in mares. This supplement contains herbs such as chastetree berries, cramp bark, and black cohosh.
Oestress Liquid (NAF Equine)
CalmingCalming
HerbHerb
MareMare
StressStress
Oestress Liquid from NAF Equine is a horse supplement that is intended to balance hormones in mares. This liquid supplement contains magnesium, chaste tree berries, and cramp bark.
Oilovite (NAF Equine)
Coat QualityCoat Quality
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Oilovite from NAF Equine is intended for all horses and ponies. This supplement is meant to provide vitamins and minerals to support overall health. Oilovite also contains soya, linseed, and hemp oil.
Old Horse (Dunstan)
FiberFiber
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
Old Horse by Dunstan is a high fibre feed intended for older horses at increased risk of metabolic disorders.
Oligovit Mineral (Reverdy)
HealthHealth
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Oligovit Mineral by Reverdy is a pelleted vitamin and mineral supplement intended for all types of horses and ponies with diets sufficient in calcium, but lacking in trace minerals and vitamins.
Omega Advantage (ProElite)
FatFat
GrowthGrowth
Omega 3-6-9Omega 3-6-9
PerformancePerformance
ProElite Omega Advantage is an extruded horse supplement providing 24% fat with added flax. It is intended to provide extra calories and aid in weight gain.
Omega Bran (McCauley’s)
FatFat
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Omega Bran by McCauley's is a high fat (27.8%) supplement containing vitamins and minerals, it is intended for all horses.
Omega Match Ration Balancing Horse Feed (Purina)
EnergyEnergy
FatFat
FiberFiber
ProteinProtein
Purina Omega Match Ration Balancer is a pelleted feed intended for horses at any activity level and life stage. It is designed to fill nutrient gaps from forage or unfortified grains.
Omolene #300® Growth Concentrate (Purina Mills)
BroodmareBroodmare
Complete FeedComplete Feed
FoalFoal
LactationLactation
Omolene 300 Growth is a textured feed designed for foals, weanlings, yearlings and mares in gestation or lactation. It contains 16% crude protein, 6% crude fat and 7% fibre.
Omolene 200 Performance RT (Purina)
BroodmareBroodmare
Complete FeedComplete Feed
Competition HorsesCompetition Horses
GrowthGrowth
Purina® Omolene® #200 RT is a textured feed intended for performance horses, providing 6% fat and 14% fibre. Energy sources include whole grains and a soy oil-molasses blend.

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