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Identify gaps in your horse's nutrition program to optimize their well-being.
Magnesium Oxide - Feed Ingredient
Magnesium Oxide is an inorganic compound composed of magnesium and oxygen. It is typically produced through the calcination of magnesite (magnesium carbonate) or by processing magnesium hydroxide derived from seawater. As a fine, white powder, Magnesium Oxide is valued for its high concentration of magnesium and stability under a range of conditions.
In equine diets, Magnesium Oxide serves as a supplemental source of magnesium, an essential mineral that supports muscle function, nerve conduction, and bone integrity. It is commonly included in feed formulations or supplements to help horses meet their daily magnesium requirements, especially when forages or other dietary components do not supply adequate levels. The bioavailability of Magnesium Oxide can vary depending on factors such as particle size and overall diet composition.
The following equine feeds, supplements and products contain Magnesium Oxide as an ingredient.
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.
MagneChrome (Mad Barn)
Antioxidant
Health
HerbMetabolic SyndromeMagneChrome 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)
CalmingHealth
Ingredient
MuscleMagnesium 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)
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 Health
Mineral 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.
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.
Sentinel Senior SR (Blue Seal)
Dental
Feed EfficiencyRation Balancer
SeniorSentinel Senior SR is an extruded feed for older horses and mature easy keepers. It is formulated to provide higher feed efficiency for senior horses with gut issues or poor teeth. The addition of bioavailable marine-sourced calcium supports gastric pH and health.
Sentinel Simply Lite (Blue Seal)
Easy KeeperGut HealthMetabolic Syndrome
ProbioticSentinel Simply Lite from Blue Seal is a low-calorie pelleted feed intended for adult horses. Formulated for easy keepers, Sentinel Simply Lite provides lower fat and protein content with 16.2% NSC.
Sentinel XT Grow (Blue Seal)
Fiber
Foal
Growth
LactationSentinel® XT™ Grow is a textured horse feed intended for growing foals and lactating mares. It provides 10% fat and 16% protein with primary ingredients including soybean hulls, beet pulp and alfalfa meal.
Sentinel XT Pro (Blue Seal)
Growth
Nutrients
PerformanceSeniorSentinel XT Pro by Blue Seal is a textured feed intended for growing horses, performance horses, gestating mares, breeding horses and senior horses.
Sentinel XT Show (Blue Seal)
Caloric Energy
Competition Horses
Exercise
Weight IssuesSentinel® XT™ Show is a textured feed intended for active adult horses and competition horses with higher nutrient requirements. It provides a higher fat content (12%) and digestible fibre sources including soybean hulls, beet pulp and alfalfa meal.
Shake Relief (NAF Equine)
ImmunityMineral Balance
Respiratory
StressShake Relief by NAF Equine is a powdered immune supplement that contains antioxidants, herbs, and magnesium which is meant to support a calm, confident demeanor.
Sharpe 12% Sweet Feed (Sharpe Farm Supplies)
Caloric Energy
Complete Feed
FlavorWeight IssuesSharpe 12% Sweet Feed is a 12% crude protein multi-particle blend coated in molasses. Sweet feeds are high in NSC but may be used to increase the palatability of certain medications, supplements, or rations.
Sho-Glo Pellets (Manna Pro)
Coat QualityMineral Balance
NutritionVitaminsSho-Glo Pellets from Manna Pro is a complete vitamin and mineral supplement for horses. Sho-Glo Pellets use a mix of organic and inorganic trace minerals.
Showman (ProElite)
Complete Feed
Low NSC FeedsMusclePerformanceProElite by Showman is a pelleted, extruded feed intended for mature horses in moderate to intense work. It is intended to be a low glycemic feed for supporting muscle strength.
Showtorque (Hygain)
Complete Feed
FatMuscle
ProteinShowtorque by Hygain is a high-protein and fat pelleted feed designed for performance horses. It contains 20% protein, 9% fat, and 16% fibre with added yeast for improved digestion.
Sixteen Plus Mix (Dodson & Horrell)
Caloric EnergyComplete FeedMuscleSeniorSixteen Plus Mix by Dodson & Horrell is a textured senior horse feed with higher protein levels and added vitamins and minerals for joint health and optimal absorption. This feed is also highly palatable with molasses, ricebran, and rapeseed oil ingredients.
Slim (NAF Equine)
Easy KeeperHerbNutrientsWeight IssuesSlim from NAF Equine is intended for easy keepers. This supplement is meant to be fed alongside a calorie efficient diet. Slim contains mint and spirulina.
Slobber Mash (Havens Horsefeed)
FiberHoof HealthNutrition
Skin + HairSlobber Mash is a grain-based equine feed containing barley flakes, wheat bran, and corn. This feed is intended for older horses with difficulty chewing and broodmares to support fertility. It is a palatable feed with a high 44.2% NSC.
SmartCalm Ultra Pellets (SmartPak)
CalmingMineral BalanceStressVitaminsSmartCalm Ultra Pellets by SmartPak is a pelleted supplement for horses intended to support proper nervous system function. It contains tryptophan, magnesium and B-vitamins in highly palatable form with no added sugar.
SmartEssentials Pellets (SmartPak)
Mineral Balance
Omega 3-6-9Ration BalancerVitaminsSmartEssentials Pellets from SmartPak is a vitamin and minerals supplement with added essential fatty acids and amino acids. Omega-3s are sourced from flaxseed and fish oil.
SmartLytes (SmartPak)
Electrolyte
HydrationIngredientPerformanceSmartLytes from SmartPak is a pelleted equine electrolyte. SmartLytes is intended to provide sodium chloride which can be lost during exercise.
SmartMetabo-Lean Pellets (Smart Pak)
Health
MetabolismMetabolic SyndromeNutritionSmartMetabo-Lean Pellets from SmartPak is a pelleted equine supplement intended to help manage insulin resistance in horses. SmartMetabo-Lean Pellets are formulated with magnesium and chromium intended to support proper insulin function in horses.
SmartVite Perform (SmartPak)
Competition HorsesMineral BalanceRation BalancerVitaminsSmartVite Perform is a pelleted mineral and vitamin supplement intended for performance horses. It includes higher nutrient levels which can support horses in heavy exercise.
SmartVite Perform Senior (SmarkPak)
ImmunityMineral BalanceSeniorVitaminsSmartVite Perform Senior is a vitamin and mineral supplement for working senior horses. It is also intended to support immunity and provide antioxidants.
SmartVite Thrive (SmartPak)
HealthMineral BalanceNutritionVitaminsSmartVite Thrive is a ration balancer meant to provide adult horses with essential vitamins and minerals in light or no work. It also contains vital amino acids and is highly palatable with vegetable oil, rice bran, and flaxseed meal ingredients.
SmartVite Thrive Senior (SmartPak)
HealthMineral BalanceSeniorVitaminsSmartVite Thrive Senior Pellets is a low feeding rate mineral and vitamin supplement for senior horses. It is formulated with added antioxidants for immune function and increased levels of B vitamins.
Solution 10-10-10 (Tucker Milling)
Energy
GrainsNutrientsPerformanceSolution 10-10-10 by Tucker Milling is a textured feed specially formulated for mature performance horses. With 10% protein, 10% fat, and 10% fiber, it delivers a balanced nutritional profile that meets energy demands while keeping protein levels moderate.
Solution-12 (Tucker Milling)
Complete Feed
DigestionFiberSeniorSolution 12 by Tucker Milling is a pelleted feed formulated for senior horses and is intended to be fed alongside forage. It includes lactic acid bacteria and yeast to support digestive health, though the specific inclusion levels are not disclosed.
Solutions 10 Textured (Right Choice)
Complete FeedFatGut HealthNutritionSolutions 10 Textured by Right Choice is a textured complete feed containing 10% protein, 10% fat, and 26.5% NSC. It is formulated for horses in work and maintenance.
Solutions 14 Pellet (Right Choice)
Complete FeedHealthNutritionProteinSolutions 14 Pellet is a complete feed with 14% protein and 6% fat intended for horses at maintenance or in work. It utilizes alfalfa meal and extruded soybeans for protein.
Solutions 14 Textured (Right Choice)
Complete FeedHealthNutritionProteinSolutions 14 Textured is a complete feed containing 14% protein from soybean and alfalfa meal and 6% fat from soybean oil. It contains whole oats, cracked corn, wheat middling's, and molasses as energy sources.
SoyChlor (Landus Cooperative)
Bone HealthElectrolyteIngredientMineral BalanceSoyChlor is a feed additive primarily used in dairy cattle. It is a source of chloride ions, and is used to balance dietary cation-anion difference (DCAD). SoyChlor also contains calcium and magnesium.
Special 13 (Hallway Feeds)
EnergyGrowthNutrientsOrganic Trace MineralsSpecial 13 by Hallway Feeds is a textured sweet feed formulated with added protein, vitamins, and minerals to support the development of young horses and maintain the health of mature horses
Speed Feed (MAC)
HealthNutrientsNutritionPerformanceSpeed Feed by MAC is a feed containing 14% protein and 4% fat, it is intended for all horse types.
SpeedFeed (Dunstan)
Caloric EnergyCompetition HorsesExercisePerformanceSpeedFeed by Dunstan is a complete textured feed intended to meet the nutrient requirements of racehorses and performance horses. It is formulated using a highly palatable blend of cereals including Oats, Maise, Barley, Lupins, Sugarbeet, Sunflower Seeds, Vegitable Oils and a Vitamin and Mineral premix.
Sport 14 (McCauley’s)
FatNutrientsPerformanceProteinSport 14 from McCauley's is a pelleted horse feed. It is intended for racing or performance horses and is meant to support gut health. It is high in fat and protein.
Sport Horse Grass (Uckele)
Mineral BalanceNutritionRation BalancerVitaminsSport Horse Grass is a pelleted vitamin, mineral, and amino acid supplement intended for performance horses consuming a grass-based diet. This supplement is intended to support muscular function, joint/tendon maintenance, and recovery.
Sport Horse Mix (Elk Grove Milling)
Caloric EnergyFiberNutrientsPerformanceSport Horse Mix by Elk Grove Milling is a complete feed containing copra meal to provide cool energy. It is intended for horses in moderate work.
Sport Muesli (Havens Horsefeed)
BroodmareFiberNutritionPerformanceSport Muesli by Havens Horsefeed is a 13% protein textured feed intended for equine athletes. It contains alfalfa meal, corn flakes, oats, and flax oil as protein and energy sources.
Stability (Excel Equine Feeds)
Easy KeeperHealthNutrientsNutritionStability is a pelleted feed from Excel Equine Feeds. This feed is intended for horses in any level of work, and stage of life.
Stable MAX Performance (Elk Grove Milling)
Complete Feed
MarePerformance
StallionStable MAX Performance is a complete feed from Elk Grove Milling intended for performance horses, stallions, and broodmares. It provides probiotics and 14% protein.
Stable MAX Senior Lite (Elk Grove Milling)
Complete FeedNutritionProbioticSeniorStable MAX Senior Lite is a complete feed from Elk Grove Milling intended for senior horses, hard keepers, and metabolic horses. It provides probiotics and 15% protein.
Stable MAX Ultra Mate (Elk Grove Milling)
Complete FeedEasy KeeperProbioticProteinStable MAX Ultra Mate is a complete feed from Elk Grove Milling intended for easy keepers or horses in light work. It provides probiotics and 30% protein.
Stable Mix (Elk Grove Milling)
Caloric EnergyComplete FeedFiberGut HealthStable Mix by Elk Grove Milling is a complete pelleted formula intended for all horses. This feed is high in fiber (30%) and can be used to replace forage in a horse's diet.
Stable Mix Futurity (Elk Grove Milling)
GrowthPerformance
PrebioticProbioticStable Mix Futurity by Elk Grove Milling is a pelleted feed intended for young horses in training.
Stable Mix GC (Elk Grove Milling)
Complete FeedHealth
JointsNutrientsStable Mix GC by Elk Grove Milling is a complete pelleted feed containing glucosamine and chondroitin. It is intended for horses that show signs of arthritis.
Stable Mix Lite (Elk Grove Milling)
Complete FeedHealthLow NSC FeedsNutrientsStable Mix Lite by Elk Grove Milling is a high fiber feed containing less than 12% NSC. It is intended for easy keepers, or horses needing low sugar and starch diets.
Stabul 1 (Anderson Feed Co)
Easy KeeperLow NSC FeedsMetabolic SyndromeWeight IssuesStabul™ 1 is a low-starch (5%) and low-sugar (5%) feed intended for easy keepers and horses, ponies and mules with metabolic concerns. It is corn, oats and molasses-free.
Stabul 1 Plus (Anderson Feed Co)
ExerciseMetabolic SyndromeNutritionWeight IssuesStabul™ 1 Plus is a low-starch (5%) and low-sugar (5%) feed intended for horses that are in work or hard keepers. It is designed for horses with metabolic concerns to provide higher energy density.
Stake Horse (Woody’s Horse Nutrition)
Competition HorsesDigestionFiberPerformanceStake Horse by Woody’s Horse Nutrition is a beet-based 9% fat and 13% protein feed intended for racehorses. It is made with molasses, oats, barley, and beet pulp. This horse is intended for racehorses or performance horses.
Stallion Max (Hallway)
Caloric EnergyNutritionOmega 3-6-9StallionStallion Max from Hallway is a fortified high-fat, high-fibre feed formulated for stallions. This feed has added omega-3 fatty acids. Stallion Max contains 14% protein, 6% fat, and 12% fibre. It is recommended to start feeding 'Stallion Diets' 60 to 90 days before breeding season begins.
Stamina (Pryde’s EasiFeed)
EnergyMusclePerformance
ToplineStamina by Pryde's EasiFeed is an extruded sweet feed intended for racehorses.
Staminoats (Hallway)
BroodmareGrowthLactationNutritionStaminoats from Hallway is a cubed feed fortified with Stamm 30, formulated for broodmares and young growing horses. This feed provides 14% protein, 3% fat, and 11% fibre.
Stamm 30 (Hallway)
BroodmareFoalGrowthStallionStamm 30 from Hallway is a vitamin and mineral pellet formulated for growing, reproducing, recreational and performance horses. This can be fed alone to easy keepers, or used to top dress feed for horses not getting the full feeding rate of concentrate feeds. Stamm 30 is used in other Hallway feeds as the source of vitamins and minerals.
Starch Wise (ProElite)
Gut HealthNutritionPerformanceSeniorProElite Starch Wise is a pelleted horse feed with a maximum 14.5% NSC. It is formulated with moderate levels of starch and sugar for mature show and performance horses.
