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Identify gaps in your horse's nutrition program to optimize their well-being.
Omneity® Pellets
All-In-One Vitamin & Mineral Pellet
FeedBank
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 Health
Metabolic Syndrome
Organic Trace Minerals
VitaminsAminoTrace+ 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.
Commercial Feeds & SupplementsRation BalancersVitamin & Mineral SupplementsSupplementsAmino Acid SupplementsBone SupplementsHoof SupplementsMetabolic SupplementsMineral SupplementsMuscle SupplementsReproductive SupplementsSenior Horse SupplementsSkin & Coat SupplementsTopline SupplementsVitamin Supplements
MagneChrome+ (Mad Barn)
Antioxidant
EnergyMetabolic Syndrome
Mineral BalanceMagneChrome+ 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)
Calming
Health
Ingredient
MuscleMagnesium 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)
AntioxidantOrganic Trace Minerals
RecoveryVitaminsNatural 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 HealthHoof HealthMineral BalanceOrganic Trace Minerals
Ration BalancerOmneity 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.
Commercial Feeds & SupplementsRation BalancersVitamin & Mineral SupplementsSupplementsAmino Acid SupplementsBone SupplementsHoof SupplementsMetabolic SupplementsMineral SupplementsReproductive SupplementsSenior Horse SupplementsSkin & Coat SupplementsTopline SupplementsVitamin SupplementsMineralsVitaminsOrganic Minerals
Omneity Premix – Vitamin & Mineral Supplement (Mad Barn)
Hoof HealthMineral BalanceOrganic Trace MineralsVitaminsOmneity 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.
Commercial Feeds & SupplementsRation BalancersVitamin & Mineral SupplementsSupplementsAmino Acid SupplementsBone SupplementsHoof SupplementsMetabolic SupplementsMineral SupplementsReproductive SupplementsSenior Horse SupplementsSkin & Coat SupplementsTopline SupplementsVitamin SupplementsMineralsOrganic Minerals
Performance XL: Electrolytes (Mad Barn)
Competition Horses
Electrolyte
Performance
StaminaPerformance 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)
DigestionGut Health
Immunity
Probiotic
Ulcers
YeastVisceral+ 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.
Magic Mineral (Farrier’s Magic)
Coat QualityHoof HealthMineral BalanceVitaminsMagic Mineral is a supplement intended for equines of all ages. The supplement helps support healthy hooves and coats.
MagnaGard Gastric Support Supplement (Eagle Equine)
DigestionGut Health
HindgutImmunityMagnaGard Gastric Support from Eagle Equine is a powdered equine supplement intended to prevent ulcers. MagnaGard Gastric Support is also a source of magnesium and trace minerals for horses.
Magnequin (Hestevard)
Amino AcidCalmingHealthVitaminsMagnequin by Hestevard is a liquid supplement intended to support a healthy nervous system in all types of horses and ponies.
Magnesium (Krafft)
ExerciseIngredientMineral BalanceMuscleMagnesium by Krafft is a supplement intended when a deficiency has been confirmed or can be used as a preventative when forage has low magnesium levels.
Magnesium 5000 (MVP)
CalmingImmunityMineral BalanceMuscleMagnesium 5000 by MVP is a pelleted supplement for horses that intends to help support normal muscle function and glucose metabolism. It contains magnesium oxide, which is an inorganic source of magnesium.
Magnesium Carbonate
CalmingElectrolyteIngredientMuscleMagnesium 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 Carbonate 25% (Uckele)
MetabolismMineral BalanceMuscle
NutrientsMagnesium Carbonate 25% is a powdered magnesium supplement. This supplement can support enzyme activity and energy storage. It provides 3 grams of magnesium per 12-gram scoop.
Magnesium Chloride
CalmingElectrolyteIngredientMuscleMagnesium 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 Glycinate (Yucc’ It Up!)
HealthImmunityIngredient
NutritionMagnesium Glycinate from Yucc' It Up! is a powdered magnesium supplement. This supplement is intended to improve cardiovascular health and muscle function in horses.
Magnesium Hydroxide
CalmingElectrolyteIngredientMuscleMagnesium 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)
CalmingIngredientMetabolic SyndromeMuscleMagnesium 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 Oxide (Pegasus)
CalmingCompetition HorsesIngredient
StressMagnesium Oxide from Pegasus is meant to support calming behavior. This supplement is intended for horses and ponies that are exposed to stressful situations.
Magnesium Oxide 56% (California Trace)
CalmingMetabolismMineral BalanceMuscleMagnesium Oxide 56% by California Trace is a powdered supplement that supports hoof, bone, and muscle function in horses and ponies. This supplement provides 15.8 grams of magnesium per serving.
Magnesium Oxide Pure (Basic Equine Nutrition)
Bone HealthHealthIngredientMetabolismMagnesium Oxide Pure by Basic Equine Nutrition is a highly concentrated source of magnesium oxide. It supports healthy bone development as well as proper carbohydrate and mineral metabolism.
Magnesium Sulfate (Epsom Salts)
ElectrolyteGut HealthIngredientMuscleMagnesium sulfate is an inorganic source of the mineral magnesium. Epsom Salts can be used under veterinary guidance to promote gut motility.
Magnesium Sulfate Anhydrous
CalmingElectrolyteIngredientMuscleMagnesium 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.
Magnitude Powder (Equine America)
CalmingHealthMineral BalanceStressMagnitude Powder from Equine America is a supplement that is meant to support the nervous system and assist with relaxation and calmness. It contains magnesium and calcium.
MagOx (HorseTech)
CalmingHoof HealthMetabolismMuscleMagOx 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.
MagRestore Powder (Performance Equine Nutrition)
CalmingMineral BalanceNutritionRecoveryMagRestore Powder from Performance Equine Nutrition is meant to support nerve and muscle function. This supplement is intended for all horses and ponies at any level of work specifically performance horses.
MAGvet (Hypona)
CalmingCompetition HorsesMineral BalancePerformanceMAGvet by Hypona is a calming supplement containing 98% magnesium. It is intended for all horse types and disciplines.
Maintenance Horse Feed (DuMOR)
Easy KeeperHealthImmunityNutritionMaintenance Horse Feed from DuMOR is a pelleted feed intended for easy keepers. This feed contains added vitamins, minerals and probiotics intended for horses in any life stage.
Maintenance Horse Ration (Hoffman’s Horse Products)
FiberHealth
Low NSC FeedsRation BalancerHoffman's Maintenance Horse Ration is a pelleted feed with lower energy density for horses at maintenance or in light work. Calories are provided by soybean hulls, stabilized rice bran, wheat mill run, malt sprouts and oat hulls.
Makor (St.Hippolyt)
CalmingPerformanceRecoveryStressMakor by St.Hippolyt is a supplement high in magnesium and Vitamin E intended to support horses in intense competition and training.
Manna Senior Pellets (Manna Pro)
DigestionHoof HealthMuscle
SeniorManna Senior Pellets by Manna Pro is a pelleted horse feed intended to support hoof health, digestion, muscle and healthy weight in senior horses.
Mare & Foal (Seminole)
Broodmare
Foal
Growth
LactationSeminole Mare & Foal™ is a textured feed designed for foals, weanlings, and late-gestation or lactating broodmares. This oat-based feed contains corn, digestible fibre, added lysine, and chelated trace minerals.
Mare & Youngstock Concentrate (Dodson & Horrell)
BroodmareFoalGrowthNutritionMare & Youngstock Concentrate by Dodson & Horrell is a feed designed to support the easy keeper broodmare and her foal. This feed includes vitamins and minerals and an elevated protein level to support optimal growth for the foal and maintain the mare.
Mare Cube (Excel Equine Feeds)
BroodmareGrowthNutrientsNutritionMare Cube by Excel Equine Feeds is a cubed feed fortified with protein, amino acids, vitamins and minerals. It is intended for broodmares and growing horses.
Mare Foal & Youngstock (NAF Equine)
BroodmareFoalGrowthMineral BalanceMare Foal & Youngstock from NAF Equine is intended for broodmares, foals, and growing horses. This supplement is intended to provide adequate vitamins and minerals to support growth.
Mare Mineral (Dunstan)
BroodmareImmunityMineral BalanceNutritionMare Mineral by Dunstan is a pelleted feed containing vitamins and minerals. It is intended for pregnant mares.
Mare Plus (Farnam)
BroodmareLactationMineral BalanceVitaminsFarnam Mare Plus is a gestation and lactation supplement intended to provide nutrients required for gestating and lactating mares. It supplies vitamins, minerals and amino acids.
Mare Relieve (DAC)
Calming
Herb
MareStressMare Relieve by DAC is a powdered calming supplement designed specifically for mares. It features a blend of chasteberry extract, dong quai root powder, and raspberry leaf.
Mare Support (Pureform)
CalmingMareMineral BalanceVitaminsMare Support is a vitamin/mineral supplement formulated for horses on a grass-based diet. It contains glucosamine and MSM for joint health, B-vitamins, organic microminerals and vitex agnus-castus (chasteberry).
Mare-Foal II-P (Pellets) (MVP)
BroodmareFoalMineral BalanceVitaminsMare-Foal II-P by MVP is a pelleted supplement designed for broodmares and foals. It contains vitamins, minerals, probiotics and an elevated protein level that intend to support proper development.
Mare’s Milk Plus (Buckeye)
EnergyFoalNutrition
ProteinMares Milk Plus is a powdered milk replacer for nursing, orphaned or rejected foals. It contains digestible, whey-based proteins to minimize digestive upset and is fully fortified.
Mare’s Match® Foal Transition Pellets (Land O Lakes)
FatFoalGrowthProteinMare's Match® Foal Transition Pellets is a milk-based feed targeted to weanlings transitioning to solid feed. It is a source of protein, fat, vitamins and minerals.
MareKare (AniMed)
BroodmareLactationNutrientsVitaminsMareKare from AniMed is a made for pregnant and lactating mares. This vitamin and mineral supplement is meant to provide extra nutrients and help maintain body condition during breeding, foaling, and lactating.
Mass-No-Sass (Daily Dose Equine)
DigestionFiber
Forage
Weight IssuesMass-No-Sass by Daily Dose Equine is a hay-based feed with high fat and fibre. It is intended to be digested in the foregut, allowing a horse to maintain focus and calm during training.
Mature Horse (Bar Ale)
Complete Feed
JointsNutritionSeniorMature Horse is intended to support overall health and nutrient requirements for an adult to a senior horse. It contains glucosamine which is meant to support joint health.
Mature Horse Textured (Matrix)
Complete FeedNutritionProteinSeniorMature Horse Textured by Matrix is a texturized complete feed that provides 14% protein and 4.5% fat. This feed is recommended for mature horses in moderate to heavy work to supply additional energy and protein.
Mature Horse Textured Feed (Lifeline)
DigestionFiberGut HealthSeniorLifeline Mature Horse Textured Feed is a feed intended for horses with weight issues, and horses in light to moderate work.
Maxi Tub A/N (Agassiz Feeds)
HealthMineral BalanceNutritionVitaminsMaxi Tub by Agassiz Feeds is a protein, energy, mineral and vitamin lick designed for beef cattle and dairy heifers on pasture. It is molasses-based, with no additional salt, providing a minimum of 16% crude protein.
Maxim Low-GI (Dunstan)
FiberHealthLow NSC FeedsNutritionMaxim Low-GI by Dunstan is a high fibre feed formulated to be low in starch and sugar. It is intended for horses that do not do well on grain-based feeds.
McMillan Electrolyte (McMillan Equine Feeds)
Electrolyte
HydrationMineral BalancePerformanceMcMillan Electrolyte by McMillan Equine Feeds is an electrolyte supplement intended to replace minerals lost from sweating during exercise in horses.
Medicine Bag Complete (Medicine Bag Project)
GrowthHealthMineral BalanceMuscleMedicine Bag Complete by Medicine Bag Project is a powdered mineral supplement intended for all types of horses.
Mega Dose (Horse Guard)
DigestionGut HealthMineral BalanceVitaminsMega Dose by Horse Guard is a supplement that contains vitamins, minerals, and probiotics. It is intended to assist with digestion, gut health and hoof health.
![Mega-Blud (Equistro)-[Discontinued]](/wp-content/uploads/2022/10/Mega-Blud-Equistro-Horse-Supplement-300x300.png)
Mega-Blud (Equistro)-[Discontinued]
HealthIngredientPerformanceVitaminsMega-Blud from Equistro was a powdered booster dose of Vitamin A, E, and D. Mega-Blud was intended to support the function of the musculoskeletal, immune, and nervous systems.
Mega-Mag (Pellets) (MVP)
Amino AcidMineral BalanceProbioticVitaminsMega-Mag by MVP is a pelleted supplement designed for alfalfa hay/grain diets that provide vitamins, minerals, amino acids, and probiotics intended horses of all life stages.
Meganutril Ultra (Equina USA)
AntioxidantHealthImmunityVitaminsMeganutril Ultra from Equina USA is a mineral supplement for horses. Meganutril Ultra contains vitamins, amino acids, and yeast. This supplement is intended to balance nutritional deficiencies in horses.
Mellow Muscle (Sierra Gold)
CalmingMineral BalanceMuscleVitaminsMellow Muscle by Sierra Gold is a powdered supplement for horses intended to aid horses suffering from PSSM. It contains vitamins, minerals, and amino acids which intend to support muscle growth.
Meta Safe (Hygain)
ImmunityMetabolismRation BalancerWeight IssuesMeta Safe from Hygain is a ration balancer pellet for horses. Meta Safe is intended for horses on a restricted diet or suffering from metabolic issues. This feed contains 6.5% NSC.
