Analyze Diet

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.
MagRestore Powder (Performance Equine Nutrition)
CalmingCalming
Mineral BalanceMineral Balance
NutritionNutrition
RecoveryRecovery
MagRestore 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)
CalmingCalming
Competition HorsesCompetition Horses
Mineral BalanceMineral Balance
PerformancePerformance
MAGvet by Hypona is a calming supplement containing 98% magnesium. It is intended for all horse types and disciplines.
Maintenance Horse Feed (DuMOR)
Easy KeeperEasy Keeper
HealthHealth
ImmunityImmunity
NutritionNutrition
Maintenance 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)
FiberFiber
HealthHealth
Low NSC FeedsLow NSC Feeds
Ration BalancerRation Balancer
Hoffman'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)
CalmingCalming
PerformancePerformance
RecoveryRecovery
StressStress
Makor by St.Hippolyt is a supplement high in magnesium and Vitamin E intended to support horses in intense competition and training.
Mare & Foal (Seminole)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Seminole 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)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Mare & 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)
BroodmareBroodmare
GrowthGrowth
NutrientsNutrients
NutritionNutrition
Mare 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)
BroodmareBroodmare
FoalFoal
GrowthGrowth
Mineral BalanceMineral Balance
Mare 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)
BroodmareBroodmare
ImmunityImmunity
Mineral BalanceMineral Balance
NutritionNutrition
Mare Mineral by Dunstan is a pelleted feed containing vitamins and minerals. It is intended for pregnant mares.
Mare Plus (Farnam)
BroodmareBroodmare
LactationLactation
Mineral BalanceMineral Balance
VitaminsVitamins
Farnam 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)
CalmingCalming
HerbHerb
MareMare
StressStress
Mare 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)
CalmingCalming
MareMare
Mineral BalanceMineral Balance
VitaminsVitamins
Mare 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)
BroodmareBroodmare
FoalFoal
Mineral BalanceMineral Balance
VitaminsVitamins
Mare-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)
EnergyEnergy
FoalFoal
NutritionNutrition
ProteinProtein
Mares 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)
FatFat
FoalFoal
GrowthGrowth
ProteinProtein
Mare'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)
BroodmareBroodmare
LactationLactation
NutrientsNutrients
VitaminsVitamins
MareKare 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)
DigestionDigestion
FiberFiber
ForageForage
Weight IssuesWeight Issues
Mass-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 FeedComplete Feed
JointsJoints
NutritionNutrition
SeniorSenior
Mature 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 Plus (Bar Ale)
Complete FeedComplete Feed
JointsJoints
NutritionNutrition
SeniorSenior
Mature Horse Plus is a pelleted feed formulated for older horses. It is intended to help maintain condition. It contains glucosamine and chondroitin to help support joint health.
Mature Horse Textured (Matrix)
Complete FeedComplete Feed
NutritionNutrition
ProteinProtein
SeniorSenior
Mature 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)
DigestionDigestion
FiberFiber
Gut HealthGut Health
SeniorSenior
Lifeline 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)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Maxi 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)
FiberFiber
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Maxim 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)
ElectrolyteElectrolyte
HydrationHydration
Mineral BalanceMineral Balance
PerformancePerformance
McMillan Electrolyte by McMillan Equine Feeds is an electrolyte supplement intended to replace minerals lost from sweating during exercise in horses.
Medicine Bag Complete (Stance Equine USA)
GrowthGrowth
HealthHealth
Mineral BalanceMineral Balance
MuscleMuscle
Medicine Bag Complete by Stance Equine is a powdered mineral supplement intended for all types of horses.
Mega Dose (Horse Guard)
DigestionDigestion
Gut HealthGut Health
Mineral BalanceMineral Balance
VitaminsVitamins
Mega 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)
HealthHealth
IngredientIngredient
PerformancePerformance
VitaminsVitamins
Mega-Blud from Equistro is a powdered booster dose of Vitamin A, E, and D. Mega-Blud is intended to support the function of musculoskeletal, immune, and nervous systems.
Mega-Mag (Pellets) (MVP)
Amino AcidAmino Acid
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Mega-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)
AntioxidantAntioxidant
HealthHealth
ImmunityImmunity
VitaminsVitamins
Meganutril 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)
CalmingCalming
Mineral BalanceMineral Balance
MuscleMuscle
VitaminsVitamins
Mellow 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)
ImmunityImmunity
MetabolismMetabolism
Ration BalancerRation Balancer
Weight IssuesWeight Issues
Meta 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.
Meta-Librium (Equi-Force)
CalmingCalming
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
VitaminsVitamins
Meta-Librium is a supplement intended to help manage metabolic syndrome and insulin resistance in horses and ponies. It contains magnesium, lipoic acid, vitamin E and C, and L-Carnitine, enhancing insulin action.
Meta-Support (Basic Equine Nutrition)
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
MuscleMuscle
Weight IssuesWeight Issues
MetaSupport is formulated with several key nutrients to support metabolic health. It contains chromium yeast and magnesium oxide, which are thought to promote insulin secretion and sensitivity.
Metabolic (DAC)
CirculationCirculation
MetabolismMetabolism
Mineral BalanceMineral Balance
StressStress
Metabolic from dac is a supplement that is intended to support metabolism relating to blood glucose levels. It is also meant to assist with circulation and managing stress.
Metabolic Miracle (Aterak Nutrition)
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
VitaminsVitamins
Metabolic Miracle by Aterak Nutrition is a feed targeted toward horses or ponies with metabolic disorders (Cushing's, Founder, Laminitis). This feed contains the vitamins and minerals necessary to support a well-balanced diet and is high in fibre.
MetaBoost (Pureform)
Amino AcidAmino Acid
AntioxidantAntioxidant
ToplineTopline
VitaminsVitamins
MetaBoost from Pureform is a supplement for horses that contains antioxidants, vitamins, amino acids and minerals. It is meant to support digestion, muscles, and topline.
Metaslim (Simple System Horse Feeds)
IngredientIngredient
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
Weight IssuesWeight Issues
Metaslim is a pelleted equine feed designed for horses who have metabolic issues. It is a highly palatable feed suitable for overweight horses.
Micro-Max (Kentucky Equine Research)
Gut HealthGut Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
KER Micro-Max is a vitamin/mineral supplement intended for horses on high-forage diets. It contains macro- and micro-minerals, and vitamins A, D and E.
Microfeed (Dodson & Horrell)
Amino AcidAmino Acid
ExerciseExercise
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
Microfeed is a feed designed for racehorses in full training. This feed is high in NSC to give the horses an energy boost. It is also high in protein for proper muscle building and includes some yeast for good digestive function.
Midwestern Sweet Mix (Country Road)
Easy KeeperEasy Keeper
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Midwestern Sweet Mix from Country Road is a multi-purpose livestock feed. Midwestern Sweet Mix is a textured feed with added molasses.
Milk & Grow Pellets (Uckele)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Milk & Grow Pellets is a vitamin, mineral, probiotic, and amino acid pelleted supplement formulated for lactating and gestating mares as well as growing foals that have increased nutrient demands.
Milk of Magnesia PLUS (Cox Vet Lab)
Gut HealthGut Health
PerformancePerformance
RecoveryRecovery
StressStress
Milk of Magnesia PLUS is a liquid supplement of calcium and magnesium intended for performance horses. It may also be beneficial for horses undergoing stressful situations.
Min-A-Vite (Blue Seal) [DISCONTINUED]
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Min-A-Vite from Blue Seal is a vitamin and mineral supplement intended for horses and ponies of all ages and work levels. Min-A-Vite uses a mix of inorganic and organic trace minerals.
MIN-AD – Calcium Magnesium (Papillion)
DigestionDigestion
HindgutHindgut
ProbioticProbiotic
UlcersUlcers
MIN-AD is an acid buffer additive containing magnesium carbonate. This supplement is a bioavailable source of Ca (22%) and Mg (12%) and can support gut microbial growth. MIN-AD is intended to be used for cattle.
Miner High Phosphorus (Krafft)
ElectrolyteElectrolyte
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
Miner High Phosphorus by Krafft is a pelleted mineral supplement intended to balance high levels of calcium in available forage. It is designed for horses in all levels of work.
Miner Original (Krafft)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Miner Original by Krafft is a pelleted mineral supplement intended for horses in moderate work. It is designed for horses with access to low quality forage.
Miner Original Powder (Krafft)
ElectrolyteElectrolyte
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
Miner Original Powder is a mineral supplement intended for horses in moderate work that have assess to low quality forage.
Miner Summer (Krafft)
ElectrolyteElectrolyte
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
Miner Summer by Krafft is a mineral supplement intended for horses mainly on pasture or a forage diet, especially if the mineral content is insufficient.
Miner VitaMinerals (Krafft)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Miner VitaMinerals by Krafft is designed for high-performance horses that have access to forage with insufficient mineral levels.

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