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Vitamin D Supplement - Feed Ingredient

Vitamin D Supplement refers to feed-grade sources of Vitamin D, commonly available as Vitamin D₂ (ergocalciferol) or Vitamin D₃ (cholecalciferol). In equine nutrition, Vitamin D₃ is the preferred form, as it is more bioavailable and is the natural form synthesized in the skin when exposed to sunlight. Vitamin D plays a crucial role in calcium and phosphorus metabolism, aiding in the regulation of bone growth, maintenance, and overall mineral homeostasis.

Horses primarily obtain Vitamin D from sunlight exposure and, to a lesser extent, from forage. However, supplementation may be necessary for horses kept indoors for extended periods, those with limited sun exposure, those that live in Norther Climates, or those with increased nutritional demands.

The following equine feeds, supplements and products contain Vitamin D Supplement 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.
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.
D-Carb Balance (Pellets) (MVP)
MetabolismMetabolism
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
VitaminsVitamins
D-Carb Balance is a pelleted supplement provides high magnesium and chromium levels that intend to help support blood sugar levels. It is intended for diets consisting of Timothy or Bermuda grass-type hay, no grain, or small amounts of low-carb feedstuffs.
DAC Colt Grower (DAC)
Amino AcidAmino Acid
FoalFoal
GrowthGrowth
YeastYeast
Colt Grower by DAC provides vitamins and minerals for young horses. A proper vitamin and mineral balance is essential for development, as well as hoof and coat quality.
Daily 35% (Equis Feed)
Gut HealthGut Health
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
Daily 35% by Equis Feeds is a pelleted ration balancer containing 35% protein that can be fed alone or in combination with other feeds. This highly fortified concentrate has an average feeding rate of 1-1.5 lbs per day.
Daily Combo (Empire Research)
Competition HorsesCompetition Horses
DigestionDigestion
IngredientIngredient
YeastYeast
Daily Combo from Empire Research is an equine digestion supplement. Daily Combo is formulated with vitamins, minerals, prebiotics, probiotics and yeast. This supplement is intended to support horses' gut function.
Daily Essentials Pellets (Formula 707)
GrowthGrowth
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Daily Essentials Pellets by Formula 707 is an pelleted equine vitamin and mineral supplement intended to support overall health in all classes of horses.
Daily Red Fortified (Redmond)
HealthHealth
HydrationHydration
Mineral BalanceMineral Balance
VitaminsVitamins
Daily Red Fortified by Redmond is a vitamin and mineral supplement including vitamin E, zinc and copper. It is intended to support hydration and overall health in horses
Daily Start Probiotic (Doctor’s Choice Supplements)
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
PrebioticPrebiotic
ProbioticProbiotic
Daily Start Probiotic by Doctor's Choice Supplements is a pre/probiotic supplement intended to support gut health. It is designed for broodmares and horses that have difficulty keeping weight.
DailyWerks HD (HorseTech)
Hoof HealthHoof Health
JointsJoints
PerformancePerformance
Ration BalancerRation Balancer
DailyWerks HD by HorseTech is a powdered ration balancer intended to support hoof and joint health in horses in heavy work.
DailyWerks LD (HorseTech)
HealthHealth
Hoof HealthHoof Health
JointsJoints
Ration BalancerRation Balancer
DailyWerks LD by HorseTech is a daily ration balancer intended to provide hoof and joint support.
Decade Challenger – Super Bites (Poulin Grain) – [Discontinued]
Caloric EnergyCaloric Energy
GrainsGrains
MareMare
PerformancePerformance
Decade Challenger - Super Bites by Poulin Grain is a large-format pelleted feed intended for performance horses and broodmares. It provides 14% protein, 8% fat, and 10% fiber.
Decade Challenger (Poulin Grain) – [Discontinued]
Caloric EnergyCaloric Energy
GrainsGrains
MareMare
PerformancePerformance
Decade Challenger by Poulin Grain is a pelleted feed for performance horses and broodmares. It provides 14% protein, 8% fat and 10% fiber.
Decade Complete Diet (Poulin Grain) – [Discontinued]
Complete FeedComplete Feed
FiberFiber
NutrientsNutrients
Weight IssuesWeight Issues
Decade Complete Diet by Poulin Grain is a high-fiber complete pelleted feed intended for horses in light work. It provides 13% protein, 3% fat, and 17.5% fiber.
Decade Endurance Sport (Poulin Grain) – [Discontinued]
Complete FeedComplete Feed
GrainsGrains
Mineral BalanceMineral Balance
VitaminsVitamins
Decade Endurance Sport by Poulin Grain is a pelleted feed intended for horses in light-moderate work. It provides 12% protein, 8% fat, and 10% fiber.
Decade FIBER-X (Poulin Grain)
DigestionDigestion
FatFat
NutrientsNutrients
PerformancePerformance
Decade FIBER-X by Poulin Grain is a beet-pulp based textured feed intended to support overall health and digestion in maintenance, performance, and breeding horses and ponies.
Decade Race Formula (Poulin Grain) – [Discontinued]
Complete FeedComplete Feed
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Decade Race Formula by Poulin Grain is a high-calorie, high-protein textured feed intended for race horses. It provides 13% protein, 7% fat, and 9.5% fiber.
Decade RACE-X (Poulin Grain)
Competition HorsesCompetition Horses
EnergyEnergy
FlavorFlavor
PerformancePerformance
Decade RACE-X by Poulin Grain is a textured feed intended to provide energy and protein for high performance competition horses and horses in intense work.
Decade RENEGADE-X (Poulin Grain)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
NutritionNutrition
PerformancePerformance
Decade RENEGADE-X by Poulin Grain is a textured feed formulated to meet the nutritional needs of performance horses and horses in training.
Decade Sprint Extreme (Poulin Grain) – [Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Mineral BalanceMineral Balance
VitaminsVitamins
Decade Sprint Extreme by Poulin Grain is a textured feed for performance horses and broodmares. It provides 13% protein, 8% fat and 10% fiber.
Decade Stable Sweet Tradition (Poulin Grain) – [Discontinued]
Complete FeedComplete Feed
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Decade Stable Sweet Tradition by Poulin Grain is a textured feed intended for mature active horses. It provides 13% protein, 6% fat, and 15% fiber.
Decade X-ENERGY (Poulin Grain)
Caloric EnergyCaloric Energy
DigestionDigestion
EnergyEnergy
PerformancePerformance
Decade X-ENERGY by Poulin Grain is a high-energy pelleted feed intended to support the nutritional needs of high performance horses.
Decade X-OVER (Poulin Grain)
Easy KeeperEasy Keeper
NutrientsNutrients
NutritionNutrition
PerformancePerformance
Decade X-OVER by Poulin Grain is a pelleted feed intended to provide balanced nutrition when forage is limited for all classes of horses.
Decade X-PEDITION (Poulin Grain)
NutrientsNutrients
PerformancePerformance
ProteinProtein
SeniorSenior
Decade X-PEDITION by Poulin Grain is a textured feed formulated to provide protein, vitamins, and minerals to mature horses and horses in work or at maintenance.
Decade X-PERT (Poulin Grain)
BroodmareBroodmare
GrowthGrowth
PerformancePerformance
StressStress
Decade X-PERT by Poulin Grain is a pelleted feed intended to meet the nutritional needs of performance horses, pregnant mares and growing horses.
Decade X-PERT Super Bites (Poulin Grain)
BroodmareBroodmare
GrowthGrowth
PerformancePerformance
StressStress
Decade X-PERT Super Bites by Poulin Grain is a large-format pelleted feed intended to meet the nutritional needs of performance horses, pregnant mares and growing horses.
DeStress Equine (Hoffman’s Horse Products)
MuscleMuscle
NutrientsNutrients
StressStress
Weight IssuesWeight Issues
DeStress Equine from Hoffman's Horse Products is a pelleted supplement that is meant to help with the stress of being handling or transported. It contains electrolytes, amino acids, and aims to reduce weight and increase muscle development.
Developer Ration (Hoffman’s Horse Products)
BroodmareBroodmare
FoalFoal
Grain FreeGrain Free
GrowthGrowth
Hoffman's Developer Ration is a pelleted feed for weanlings, growing horses up to two years of age, and pregnant broodmares. This feed contains 17% protein, 5.5% fat, 17.5% NSC, and provides a mix of organic and inorganic trace minerals.
Diamond Balancer (Triple Crown)
Easy KeeperEasy Keeper
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
Diamond Balancer by Triple Crown is a grain-free pelleted balancer formulated for adult horses with metabolic concerns. It provides 14% protein, 3% fat, and 15% fiber (as fed).
Diamond Perform (Triple Crown)
AntioxidantAntioxidant
FatFat
Gut HealthGut Health
PerformancePerformance
Diamond Perform from Triple Crown is a pelleted feed that is high in fat and fiber. It is intended for performance horses and is meant to assist with gut health and immunity.
Diamond Senior (Triple Crown)
FatFat
FiberFiber
NutrientsNutrients
SeniorSenior
Diamond Senior by Triple Crown is a high-fat, high-fiber feed specifically formulated for senior horses. It includes beet pulp as a fermentable fiber source to support optimal calorie intake.
Diamond Smart Chopped Forage (Triple Crown)
ForageForage
HealthHealth
PerformancePerformance
SeniorSenior
Diamond Smart Chopped Forage by Triple Crown is an orchard and alfalfa hay blend intended to provide a complete diet for performance and mature horses. It's chopped forage format is designed to support easier chewing and swallowing.
Diamond Smart Cube (Triple Crown)
DentalDental
ForageForage
PerformancePerformance
SeniorSenior
Diamond Smart Cubes by Triple Crown is a cube containing beet pulp, timothy hay and orchard hay. It is intended for performance and mature horses.
Diamond Smart Pellet (Triple Crown)
ForageForage
HealthHealth
PerformancePerformance
SeniorSenior
Diamond Smart Pellet by Triple Crown is a Teff hay pellet fortified with vitamins and minerals. It is intended for performance and mature horses.
Direct Action Supplement (DAC)
Amino AcidAmino Acid
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Direct Action is a multivitamin and trace mineral concentrate for horses. This low feeding rate supplement is formulated to provide added vitamins, minerals, and amino acids required in the equine diet.
Distinguished (Hallway)
DigestionDigestion
Gut HealthGut Health
NutritionNutrition
SeniorSenior
Distinguished is a textured feed from Hallway feeds for senior horses fortified with Stamm 30, containing 14% protein and 10% fat. Distinguished uses soluble fibre from beet pulp, soy hulls, and chopped hay. It also contains added oil for energy.
DJ (Platinum Performance)
JointsJoints
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Platinum Performance® DJ by Platinum Performance is a powdered vitamin and mineral supplement intended to support joint and digestive health. It contains ingredients such as flaxseed, rice bran, clay, yeast, and a blend of vitamins and minerals.
Double Play (Equi-lete)
Bone HealthBone Health
Gut HealthGut Health
ImmunityImmunity
PerformancePerformance
Double Play by Equi-lete is a vitamin and mineral supplement intended to support gastric health, performance, and the growth of bone and cartilage in performance horses.
Dr. Reeds 3.0 (Purica)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Purica Dr. Reed's 3.0 is a new version of the now-discontinued Dr. Reed's Formula 2 vitamin and mineral supplement. This concentrated supplement provides a mix of organic and inorganic trace minerals, flaxseed and Natural Vitamin E.
DraversBrok (Havens Horsefeed)
ExerciseExercise
Hoof HealthHoof Health
NutritionNutrition
PerformancePerformance
DraversBrok by Havens Horsefeed is a high-energy feed intended for performance horses. It contains cereal grains, alfalfa, and flax oil as energy sources. This feed helps support optimal skin and hoof conditions.
DuraPlex (Kentucky Equine Research)
Bone HealthBone Health
GrowthGrowth
Mineral BalanceMineral Balance
VitaminsVitamins
DuraPlex is a bone health supplement intended for growing and performance horse. It provides calcium, phosphorus, magnesium and other nutrients important for bone mineralization.
Durvite (Durvet)
Coat QualityCoat Quality
HealthHealth
NutritionNutrition
Skin + HairSkin + Hair
Durvite by Durvet is a flaxseed meal based supplement intended for use in livestock, horses and pets to improve overall condition and appearance.
Dyna Foal (Lakin Milling Company)
EnergyEnergy
FoalFoal
Mineral BalanceMineral Balance
NutritionNutrition
Dyna Foal from Lakin Milling Company is a pelleted feed intended for growing horses. Dyna Foal Horse Pellets contain a balanced calcium-to-phosphorus ratio intended for the growth and development of young horses.
Dynamite (Dynamite)
HealthHealth
Hoof HealthHoof Health
NutrientsNutrients
VitaminsVitamins
Dynamite by Dynamite is a supplement containing high amounts of selenium (44.4 ppm), it is intended to support overall health in all performance horses.
Dynasty Pro 14/6 Pellet (Blue Seal)-[Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
GrowthGrowth
NutritionNutrition
Dynasty Pro 14/6 Pellet was a pelleted feed containing 6% fat, 14% protein, fermentable fiber, nutrients, and yeast. This was feed targeted horses of all ages and supported growth, performance, breeding, and lactation.
Dynasty Senior 14/6 Pellet (Kent Equine) – [Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FiberFiber
SeniorSenior
Dynasty Senior Pellet was high in fiber and provided added fat to maintain body condition in mature and senior horses. This feed contained a blend of vitamins and minerals, yeast cultures, and protein.
Dynasty Show 12/6 Pellet (Kent Equine) – [Discontinued]
Complete FeedComplete Feed
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
Dynasty Show 12/6 Pellet was a horse feed designed to meet the energy needs of active adult horses. This feed provided 12% protein, 6% fat, digestible fiber, vitamins, minerals, essential amino acids, antioxidants, and yeast cultures.
Dynasty XT Pro 14/10 Textured Horse Feed (Blue Seal) – [Discontinued]
Complete FeedComplete Feed
FiberFiber
Low NSC FeedsLow NSC Feeds
MuscleMuscle
Blue Seal Dynasty XT Pro 14/10 is a textured horse feed made with shredded beet pulp. It provides 14% protein to support growing, performance and breeding horses.
E-TEC Balancer (Poulin Grain)
Gut HealthGut Health
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Ration BalancerRation Balancer
E-TEC Balancer is a ration balancer pellet for horses consuming unfortified grains or forage-only diets. It is intended for horses at different stages including performance, growing, breeding and metabolic horses.
E-TEC Carb Safe (Poulin Grain)
Complete FeedComplete Feed
Hoof HealthHoof Health
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Poulin Grain E-TEC® Carb Safe is a pelleted feed intended for horses that require lower sugar and starch content in their diet. It provides a maximum 5.5% NSC and can fed to overweight horses or those with metabolic concerns.
E-TEC Fibre-Max (Poulin Grain)
FatFat
FiberFiber
PerformancePerformance
ToplineTopline
E-TEC® Fibre-Max is a high fat (14%) and high fibre (20%) feed for performance horses that require higher calorie intakes. It provides 9.3% sugar and 7.4% starch for a total NSC of 16.7%.
E-TEC One (Poulin Grain)
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
YeastYeast
E-TEC One by Poulin Grain is a grain-free feed intended for all classes of horses and ponies. It provides 14% protein, 8% fat, and 18% fiber.

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