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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.
Formula 2 Equine Supplement (Dr. Reeds) – [Discontinued]
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Dr. Reeds Formula 2 is a now-discontinued vitamin/mineral supplement for horses with higher NSC content than Formula 1. This supplement used a combination of organic and inorganic trace minerals and contained wheat and molasses.
Formula4 Feet (Equi Life)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Formula4 Feet is an equine hoof supplement that provides 20 mg of biotin in addition to other vitamins and minerals. It contains a combination of organic and inorganic trace minerals.
Fort-EQ – Celebrite (La Coop)
AntioxidantAntioxidant
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Fort-EQ is a pelleted equine supplement produced by La Coop from Québec, Canada. It is advertised to provide major minerals, minor elements, vitamins, and amino acids for horses.
Fortifiant Liberte (Nature Belisle)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Fortifiant Liberte by Nature Belisle is a pelleted vitamin and mineral supplement. It is intended for horses and ponies of all ages and work levels.
Fortify (Dove Performance Nutrition)
Mineral BalanceMineral Balance
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
Fortify from Dove Performance Nutrition is a pelleted feed ration for horses. It contains vitamins, minerals, protein, fiber and fat.
Fortify (Excel Equine Feeds)
FiberFiber
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
Fortify from Excel Equine Feeds is a textured feed intended for horses in all stages of life. This feed contains 13% protein and 8% fat. Fortify is intended for horses in any level of work.
Foundation Cube (Hallway Feeds)
FiberFiber
Hay StretcherHay Stretcher
NutritionNutrition
ProteinProtein
Foundation Cube by Hallway Feeds is a cubed feed intended for growing and mature horses. It is a fortified feed that can be fed in amounts up to 18 lbs (8 kg) per day
Free Balance 12:12 Vitamin & Mineral (Purina)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Free Balance 12:12 Vitamin & Mineral from Purina is a granulated mineral supplement. This supplement is intended for horses who are not receiving a balanced concentrate feed.
Free Choice (Doctor’s Choice Supplements)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Free Choice by Doctor's Choice Supplements is a vitamin and mineral supplement intended for horses strictly on pasture or forage. It contains ingredients such as calcium carbonate, salt, and monocalcium phosphate.
Freestyle Performance (Daily Dose Equine)
Caloric EnergyCaloric Energy
FatFat
FiberFiber
PerformancePerformance
Freestyle Performance by Daily Dose Equine is a textured feed that is higher in fat and fibre than Sweet ‘n Safe. It is intended for performance horses. It is also known as Trail Mix.
Full Stride (Pureform)
Hoof HealthHoof Health
JointsJoints
SeniorSenior
Skin + HairSkin + Hair
Pureform Full Stride is a joint and bone supplement for horses containing MSM, Glucosamine, DMG, amino acids, vitamins and minerals. The formula is advertised to maintain cartilage, tendons, muscle, skin, hair and hooves.
Full Support Mini (Pureform)
DigestionDigestion
JointsJoints
Mineral BalanceMineral Balance
VitaminsVitamins
Pureform Full Support Mini is a vitamin/mineral supplement intended for miniature horse breeds. It contains ingredients to support joint health, B-vitamins, as well as organic and inorganic minerals.
Futurity Blend 14 (Woody’s Feed)
BroodmareBroodmare
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
LactationLactation
Woody's Futurity Blend 14 is a high starch feed with 14% protein and 4.5% fat, targeted to broodmares and foals. It is formulated to support gestation, lactation and growth.
Gastro Plus (Havens Horsefeed)
Amino AcidAmino Acid
Gut HealthGut Health
Mineral BalanceMineral Balance
VitaminsVitamins
Gastro Plus by Havens Horsefeed is a gut health supplement for all horses and ponies at all work levels. It contains alfalfa and a blend of buffers intended to neutralize stomach acid.
GastroBalance Plus (Enviro Equine)
AntioxidantAntioxidant
Gut HealthGut Health
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
GastroBalance Plus by Enviro Equine is a gastrointestinal support supplement that includes Alltech-chelated organic trace minerals. It is intended to support overall GI tract function, the immune system, and general hoof and coat health in horses
GastroBalance Plus Paste (Enviro Equine)
Gut HealthGut Health
HealthHealth
PerformancePerformance
StressStress
GastroBalance Plus Paste by Enviro Equine is a gut health supplement intended to support horses during stress.
General Purpose Supplement (NAF Equine)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
General Purpose Supplement from NAF Equine is intended to be added to a forage-based diet to supply extra vitamins and minerals. This supplement is intended for all horses and ponies.
Generation (Equis Feed)
GrainsGrains
Gut HealthGut Health
NutritionNutrition
VitaminsVitamins
Generation from Equis Feed is intended for breeding stallions, mares in their last trimester and during lactation, and growing foals. This feed contains vitamins and minerals blended with protein, and fiber.
Genesis (Brooks)
BroodmareBroodmare
HealthHealth
NutrientsNutrients
VitaminsVitamins
Genesis by Brooks is a broodmare feed available in either textured or pelleted form. It is designed to meet the enhanced nutritional needs of mares before and after foaling, and it is marketed as having a low glycemic index.
Genesis Performance Plus (Organic Horse Feed)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
Genesis™ Performance Plus is a certified organic horse feed intended for race horses, 3-day eventers, and equine athletes. It provides 6.75% fat, 13.75% protein and 8.8% fibre from organic oats, hulless barley, peas, and flax seed meal.
Gentle Balance (LMF Horse Feeds)
Grain FreeGrain Free
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
YeastYeast
Gentle Balance is a pelleted feed for horses that contains energy, vitamins, minerals, and yeast but does not contain grain or molasses. It is a low sugar feed that is meant for horses in light to moderate exercise.
Get Go (Elk Grove Milling) [Discontinued]
Bone HealthBone Health
BroodmareBroodmare
FoalFoal
GrowthGrowth
Get Go by Elk Grove Milling is a pelleted complete feed intended for broodmares, foals and weanlings up to 18 months.
GI (Platinum Performance)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
PrebioticPrebiotic
Platinum Performance GI is a gut health supplement for mature horses. It is formulated with flax seed, probiotics, prebiotics, glutamine and other amino acids, toxin binders, vitamins and minerals.
GI Health (Doctor’s Choice Supplements)
Gut HealthGut Health
PrebioticPrebiotic
ProbioticProbiotic
VitaminsVitamins
GI Health is a pre/probiotic supplement intended for horses subjected to stressful situations such as travelling and competition. It intends to promote gut function.
Glanzen Lite Complete (HorseTech)
Easy KeeperEasy Keeper
FlavorFlavor
Hoof HealthHoof Health
Skin + HairSkin + Hair
Glanzen Lite Complete by HorseTech is a powdered supplement intended to support hoof, skin and coat health in easy-keepers and picky eaters.
Gold Chance 10 (Seminole) – [Discontinued]
Complete FeedComplete Feed
ExerciseExercise
HealthHealth
PerformancePerformance
Seminole Gold Chance 10 is a now-discontinued horse feed that provided 10% crude protein, 6% fat and 9% fiber in a pelleted format.
Gold Chance 12+ (Seminole) – [Discontinued]
Complete FeedComplete Feed
ExerciseExercise
GrowthGrowth
ProteinProtein
Seminole Gold Chance 12+ is a now-discontinued horse feed that provided 12% crude protein with added lysine to support growth and performance.
Golden Age – Senior Horse Ration (Kelley’s Feed)
Caloric EnergyCaloric Energy
FiberFiber
NutritionNutrition
SeniorSenior
Kelley's Golden Age Senior is a pelleted feed containing fine ground alfalfa hay and pre-cooked extruded grain nuggets for mature and aged horses. It provides 14% protein, as well as added vitamins and minerals.
Golden Gro (Equine Excellence Enterprises)
Coat QualityCoat Quality
Hoof HealthHoof Health
MuscleMuscle
ProteinProtein
Golden Gro by Equine Excellence Enterprises is a protein supplement intended to assist with muscle, coat and hoof health. It contains 30% crude protein and 18% fat.
Golden Senior (Equis Feed)
Mineral BalanceMineral Balance
ProteinProtein
SeniorSenior
VitaminsVitamins
Equis® Golden Senior is a high-protein complete feed intended for senior horses. It contains wheat middlings, alfalfa, corn DDGS, beet pulp, ground oats, molasses, and canola oil.
GoMax (Farman)
MetabolismMetabolism
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
GoMax from Farnam is a liquid vitamin and mineral supplement fortified with iron. It contains yucca, cherry flavourings and cane molasses.
Good n Sound (West Feeds, Inc)
Complete FeedComplete Feed
DigestionDigestion
Grain FreeGrain Free
NutritionNutrition
Good n Sound is a pelleted equine feed that contains 14% protein and 7% fat. It is intended for senior horses, hard keepers, and horses with sensitive stomachs.
Grade A Ultra 24 Milk Replacer (Sav-A-Caf)
FoalFoal
GrowthGrowth
NutritionNutrition
ProteinProtein
Ultra 24 by Sav-a-Caf is a multi-species milk replacer that can be given to foals and calves. It contains 24% fat and 24% protein from milk to support digestion and growth.
Grand Premium Plus (Grand Meadows)
Complete FeedComplete Feed
Hoof HealthHoof Health
JointsJoints
NutritionNutrition
Grand Premium Plus is a complete feed for horses that provides vitamins, minerals, and amino acids, as well as ingredients for joint support and digestion. Ideal for horses and ponies of all ages and work levels.
Grand Vite (Grand Meadows)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
ProteinProtein
Grand Vite by Grand Meadows is an equine digestive supplement targeted for all horse types. It contains vitamins, trace minerals, and Dried Saccharomyces Cerevisiae Postbiotic Fermentation Product at an undisclosed amount.
Grass Advantage (ProElite)
Mineral BalanceMineral Balance
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
ProElite Grass Advantage is a pelleted ration balancer intended to balance grass and mixed forages. It can be fed to broodmares, growing, performance, and maintenance horses.
Grass Balancer 16:8 Horse Mineral (Seminole)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Seminole Grass Balancer 16:8 is a granular mineral and vitamin supplement for horses fed grass hay or pasture. It contains inorganic minerals and molasses. It is meant to be provided free-choice or as a top dressing.
Grass Plus Vitamin & Mineral Block (BUCKEYE Nutrition)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Buckeye Grass Plus® Mineral & Vitamin Block is a free-choice mineral supplement intended for horses consuming grass forage. It contains inorganic minerals including calcium, phosphorus, magnesium and potassium.
Green-Vet Herbalmuesli (Havens Horsefeed)
DigestionDigestion
FatFat
GrainsGrains
NutritionNutrition
Green-Vet Herbalmuesli by Havens Horsefeed is a grain-based equine feed made of micronised cereals (barley, wheat, corn and oats). It also contains carrots, alfalfa and herbs such as eucalyptus and thyme.
GRO ‘N WIN Ration Balancer (BUCKEYE Nutrition)
Easy KeeperEasy Keeper
FiberFiber
Ration BalancerRation Balancer
ToplineTopline
Gro 'N Win is the original Buckeye Nutrition ration balancer that supplies minerals, vitamins and protein. It contains 13% NSC and 32% protein from sources such as soybean meal and alfalfa meal.
GRO ‘N WIN™ ALFA Ration Balancer (BUCKEYE Nutrition)
GrowthGrowth
HealthHealth
Ration BalancerRation Balancer
ToplineTopline
Gro 'N Win Alfa is a Buckeye ration balancer formulated with lower calcium to balance equine diets containing over 75% alfalfa hay. It is designed to provide minerals, vitamins, and proteins and has 18% NSC.
Gro-Fit (Ark Nutrition)
BroodmareBroodmare
Complete FeedComplete Feed
GrowthGrowth
LactationLactation
Gro-Fit by Ark Nutrition is a complete pelleted feed intended for growing horses, pregnant mares, lactating mares, and working horses. It contains various ingredients such as alfalfa meal, soyhulls, and wheat.
GROSTRONG 33 Ration Balancer (ADM Animal Nutrition)
NutritionNutrition
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
GroStrong 33 is a ration balancer that contains 33% protein. It provides a blend of vitamins and minerals to support maintenance, growth, reproduction and performance.
GROSTRONG Metabolic Mineral Pellet (ADM Animal Nutrition)
ElectrolyteElectrolyte
Gut HealthGut Health
MetabolismMetabolism
Ration BalancerRation Balancer
GroStrong Metabolic Mineral Pellet by ADM is a pelleted supplement intended for overweight, starch-sensitive and easy keeper horses. It contains a blend of organic and inorganic minerals in a corn-, alfalfa- and molasses- free formulation.
GROSTRONG Minerals (ADM Animal Nutrition)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
GroStrong Minerals is designed to provide a blend of organic and inorganic minerals. It is intended for maintenance, growth, reproduction and performance. It is available as a granular product or in a block.
Grotorque (Hygain)
BroodmareBroodmare
Grain FreeGrain Free
GrowthGrowth
StallionStallion
Grotorque from Hygain is a textured feed that is intended to support breeding or growing horses. It is grain free and contains pre and probiotics. It is meant to aid in immunity, circulation, gut health, muscle health, and recovery.
Grow & Glo Juvenile (Meunerie Benjamin)
GrowthGrowth
NutrientsNutrients
PrebioticPrebiotic
ProteinProtein
Grow & Glo Juvenile by Meunerie Benjamin is a nutrient-rich cubed feed, expertly formulated to support the healthy growth and development of young horses from weaning up to two years old.
Grow Colt (Farnam)
GrowthGrowth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Farnam Grow Colt growth and development supplement is a pelleted vitamin and mineral supplement intended for foals under one year of age.
Growth (Equine Advantage)
FoalFoal
GrainsGrains
GrowthGrowth
Omega 3-6-9Omega 3-6-9
Growth is a textured feed formulated for young growing horses under 2 years old. This feed is highly palatable and provides moderate fibre levels from highly digestible sources including shredded beet pulp and soybean hulls.
Growth (Legends)
Complete FeedComplete Feed
FoalFoal
GrowthGrowth
LactationLactation
Legends Growth is a textured horse feed targeted to foals, growing horses, pregnant and lactating mares. It is formulated with higher amino acid content to support development.

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