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Calcium - Feed Ingredient

Calcium is an essential macromineral required for numerous physiological functions in horses, including bone formation, muscle contraction, nerve transmission, and enzyme activation. It is a primary structural component of bones and teeth, with approximately 99% of the body’s calcium stored in the skeletal system.

In equine nutrition, calcium is commonly supplied through feed ingredients such as limestone (calcium carbonate) or dicalcium phosphate. It can also be added to feed formulations via high calcium feeds like alfalfa.

The following equine feeds, supplements and products contain Calcium 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.
Optimum Digestive Health Pellets (Mad Barn)
DigestionDigestion
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
ProbioticProbiotic
Optimum Digestive Health from Mad Barn is a probiotic and prebiotic supplement designed to support hindgut health in the horse. It helps to maintain a stable microflora and promote immune health.
Optimum Probiotic (Mad Barn)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
Mad Barn's Optimum Probiotic is a pure 5-strain probiotic supplement in a powdered format. It provides 20 billion CFU per serving of L. acidophilus, L. fermentum, L. casei, L. plantarum, and L. farciminis.
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.
Trace Mineral Pak (Mad Barn)
Coat QualityCoat Quality
ExerciseExercise
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
Trace Mineral Pak from Mad Barn is a balanced equine supplement providing 100% organic (chelated) trace minerals. Ingredients include selenium, zinc, copper, and manganese.
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.
Prep Mix (Baileys Horse Feeds)
FatFat
GrowthGrowth
NutritionNutrition
ToplineTopline
Baileys Horse Feeds Prep Mix is formulated to provide optimum growth support and condition. This feed is intended for yearlings to 3-year-olds in early training. Prep Mix is oat-free and contains 6.5% of oil, which helps to improve coat quality.
Prep Mix (Red Mills)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
Prep Mix from Red Mills is a feed intended for foals, yearlings, and breeding stock. This feed is meant to support growth, bone development and integrity, and coat condition.
Prime (Running Horse)
Competition HorsesCompetition Horses
ExerciseExercise
FatFat
PerformancePerformance
Running Horse Prime is a high-energy extruded feed targeted to performance equine athletes. Calorie sources include wheat middlings, pearled barley, soybean hulls, corn DDGS, stabilized rice bran, vegetable oil, flaxseed, and beet pulp.
Prime Conditioning Mix (Bluegrass Horse Feed)
Competition HorsesCompetition Horses
Gut HealthGut Health
SeniorSenior
Weight IssuesWeight Issues
Prime Conditioning Mix is a highly digestible cereal based feed. It is intended for horses and ponies in moderate and heavy work. It is also suitable for senior horses and those needing to gain weight.
Prime Lyte (Prime Performance Nutrition)
ElectrolyteElectrolyte
ExerciseExercise
PerformancePerformance
RecoveryRecovery
Prime Lyte is a buffered electrolyte blend by Prime Performance Nutrition. It is intended to replace electrolytes lost in sweat.
PrimeGLO (ADM Animal Nutrition)
FatFat
Omega 3-6-9Omega 3-6-9
PerformancePerformance
Weight IssuesWeight Issues
PrimeGLO is a concentrated horse feed designed for mature horses. It is a soft, easy-to-chew formulation that contains ingredients to support gut health. The total NSC is 14.5%.
Primequine (Newmac Animal Feeds)
HealthHealth
NutritionNutrition
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Primequine by Newmac Animal Feeds is a vitamin and mineral supplement intended to support overall health in horses.
Pro Balance (Bluebonnet Feeds)
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
YeastYeast
Pro Balance by Bluebonnet is a comprehensive diet balancer formulated to correct vitamin and mineral deficiencies commonly found in forage-only diets for horses. It also includes yeast, probiotics, and digestive enzymes to support optimal gut health and nutrient absorption.
Pro Digest Balancer (Horslyx)
Gut HealthGut Health
HindgutHindgut
Mineral BalanceMineral Balance
YeastYeast
Pro Digest Balancer from Horslyx is designed to support gut health in horses and ponies. This balancer contains seaweed and bark as a source of mucilage. Licking the product supports saliva production, which can help buffer stomach acidity.
Pro Feed Balancer (Blue Chip Feed)
BroodmareBroodmare
GrowthGrowth
Ration BalancerRation Balancer
StallionStallion
Pro Feed Balancer from Blue Chip Feed is a pelleted ration balancer designed to support hoof, coat, and gut health. This product is intended for performance horses, broodmares, stallions, and young stock.
Pro Fibre 10 Cubes (Red Mills)
Complete FeedComplete Feed
Coat QualityCoat Quality
HealthHealth
NutritionNutrition
Pro Fibre 10 Cubes from Red Mills is an oat-free feed intended for horses at moderate to heavy work and those easily stressed. This feed is designed to support a balanced temperament and coat condition.
Pro Fibre 13 Cubes (Red Mills)
Competition HorsesCompetition Horses
EnergyEnergy
NutritionNutrition
StaminaStamina
Pro Fibre 13 Cubes from Red Mills is intended for racehorses in full training or horses in moderate to heavy work. This feed is meant to support controlled energy release for stamina and post-exercise recovery.
Pro Horse 12 (MAC)
EnergyEnergy
FatFat
NutrientsNutrients
SeniorSenior
Pro Horse 12 by MAC is a high energy feed with vitamins and minerals, it is intended for mature horses.
Pro Lyte Powder (Uckele)
ElectrolyteElectrolyte
ExerciseExercise
HydrationHydration
RecoveryRecovery
Pro Lyte Powder is the powdered electrolyte supplement, similar in formulation to Liqui Lyte. It supplies calcium, sodium, chloride, magnesium, and potassium with maltodextrin to increase electrolyte absorption.
Pro Mare (MAC)
BroodmareBroodmare
LactationLactation
Mineral BalanceMineral Balance
NutrientsNutrients
Pro Mare by MAC is a salt-limited supplement intended for lactating or dry mares on hay or pasture.
Pro Mare With Clarifly (MAC)
BroodmareBroodmare
HealthHealth
LactationLactation
NutrientsNutrients
Pro Mare with Clarifly by MAC is a protein, vitamin and mineral supplement. It is intended to control the development of flies in the manure of dry and lactating mares.
Pro Performance Balancer (Spillers Feeds)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
MuscleMuscle
PerformancePerformance
The Pro Performance Balancer from Spillers Feed is intended for performance horses. This feed is high in antioxidants such as Vitamins E and C, which support the horse's muscles, immunity, and respiratory health.
Pro Star 10% Pellets (West Feeds)
Caloric EnergyCaloric Energy
FatFat
FiberFiber
GrainsGrains
Pro Star 10% Pellets by West Feeds is a feed formulated with ingredients like grain products, plant protein, and roughage products. It contains 10% protein and 6% fat content provided by some added vegetable oil.
Pro Star 12% Pellets (West Feeds)
Easy KeeperEasy Keeper
FiberFiber
GrainsGrains
NutritionNutrition
Pro Star 12% Pellets by West Feeds is for lower energy requirements with 12% protein content and 3.5% fat content. It contains inorganic vitamins and minerals and a moderate level of fibre.
Pro Star 14% Pellets (West Feeds)
ExerciseExercise
GrainsGrains
GrowthGrowth
ProteinProtein
Pro Star 14% Pellets by West Feeds is a feed meant to support young horses, containing 14% protein content and 3.5% fat content. Soybean oil and inorganic vitamins and minerals are added to help support support growth.
Pro Star Complete 3/8 (West Feeds)
Caloric EnergyCaloric Energy
FiberFiber
Gut HealthGut Health
NutritionNutrition
Pro Star Complete 3/8 by West Feeds is a high fibre feed with ingredients such as plant protein and processed grains. It contains a minimum of 12% protein and a maximum of 25% fibre.
Pro V.M. (Peak Performance Nutrients)
JointsJoints
MuscleMuscle
PerformancePerformance
StaminaStamina
Pro V.M. by Peak Performance Nutrients is a multi-use vitamin, mineral and amino acid supplement designed with race horses in mind. It intends to support the extreme demands on the horse’s joints, immune system and muscular system.
Pro V.M. with EFAs (Peak Performance Nutrients)
AntioxidantAntioxidant
ElectrolyteElectrolyte
JointsJoints
MuscleMuscle
Pro V.M. with EFAs by Peak Performance Nutrients is a vitamin, mineral, amino acid & probiotic supplement designed with race horses in mind. It intends to support the extreme demands on the horse’s joints, immune system and digestive system.
Pro-Biotic EQ Pellets (MVP)
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
YeastYeast
Pro-biotic EQ Pellets by MVP is a pelleted gut supplement that contains probiotics and prebiotics that intend to support the digestive and immune system. It intends to aid in the digestion of fibre, protein, starches and sugars.
Pro-Care Senior Select (West Feeds)
Caloric EnergyCaloric Energy
DigestionDigestion
FlavorFlavor
SeniorSenior
Pro-Care Senior Select by West Feeds is made for senior horses, containing elevated protein levels. This feed also includes molasses and soybean oil to soften the pellets and make them more palatable.
Pro-Plus 12 Sweet (Seminole) – [Discontinued]
Amino AcidAmino Acid
Complete FeedComplete Feed
ExerciseExercise
GrowthGrowth
Seminole Pro-Plus 12 Sweet is a now-discontinued oat-based textured feed for growing, breeding, pleasure and performance horses.
PRO-TECT LS (Dove Performance Nutrition)
HealthHealth
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
NutritionNutrition
PRO-TECT LS by Dove Performance Nutrition is a pelleted feed intended for all horse types.
Pro-Weight Pellets (MVP)
FatFat
PerformancePerformance
ProbioticProbiotic
Weight IssuesWeight Issues
Pro-Weight Pellets by MVP is a pelleted supplement for horses that intends to provide fat and probiotics to support healthy weight gain and body condition. It contains 60% fat from flax meal, soy meal and vegetable fat.
Pro24 Supplement (Hoffman’s Horse Products)
Easy KeeperEasy Keeper
Feed EfficiencyFeed Efficiency
HealthHealth
NutritionNutrition
Pro24 Supplement from Hoffman's is a concentrated protein, vitamin, and mineral supplement to support horses over 1 year of age. Pro24 Supplement is intended to be fed with good quality forages and contains no added sugars or starches.
ProAdvantage – Alfalfa Formula (Progressive Nutrition)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
ProAdvantage® – Alfalfa Formula is a ration balancer concentrate intended for horses consuming alfalfa hay. This feed contains amino acids, vitamins, and minerals in a lower-starch format.
ProAdvantage – Grass Formula (Progressive Nutrition)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
ProAdvantage® – Grass Formula is a concentrated ration balancer intended for horses consuming grass or mixed hay. This feed contains amino acids, vitamins, and minerals in a lower-starch format.
ProBreed (Cavalor)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Cavalor ProBreed is a textured feed for pregnant and gestating mares, as well as foals under 1 year of age. It contains 16% protein from sources such as alfalfa, wheat middlings and soybeans.
Profecta 10 (Seminole)
Caloric EnergyCaloric Energy
Feed EfficiencyFeed Efficiency
GrainsGrains
YeastYeast
Seminole Profecta 10™ is a pelleted feed providing grains, digestible fibers, yeast and molasses with 21% NSC. It is targeted at active mature horses and ponies.
Profecta 12 (Seminole)
FiberFiber
GrainsGrains
Mineral BalanceMineral Balance
YeastYeast
Seminole Profecta 12 is a pelleted feed intended for mature, active horses and ponies. It has a moderate energy density, yeast culture, and 19% NSC (sugar and starch).
Profecta 14 (Seminole)
FiberFiber
GrainsGrains
Mineral BalanceMineral Balance
YeastYeast
Seminole Profecta 14 is a pelleted feed intended for growing, breeding and performance horses. It contains 14% protein, 7% fat and 24% NSC. This feed is fortified with chelated trace minerals and antioxidants.
PROFEET Pellets (NAF Equine)
HealthHealth
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
PROFEET Pellets from NAF Equine are intended for horses and ponies at all work levels. This pelleted supplement is meant to support hoof health.
PROFEET Powder (NAF Equine)
Amino AcidAmino Acid
HealthHealth
Hoof HealthHoof Health
Mineral BalanceMineral Balance
PROFEET Powder from NAF Equine is intended for all horses and ponies at any level of work. This supplement is meant to support overall hoof health through the addition of biotin and zinc.
ProForce Fuel (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
FatFat
Nutrena ProForce Fuel is a 13% fat horse feed intended for performance athletes and hard keepers. It is meant to provide a higher calorie density with a maximum of 20% NSC.
ProForce Fuel XF (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
FatFat
Nutrena ProForce® Fuel XF is a 13% fat horse feed formulated for high performance horses that need additional nutritional support to meet the demands of stress and rigorous training.
ProForce Senior (Nutrena)
EnergyEnergy
ExerciseExercise
FiberFiber
SeniorSenior
Nutrena ProForce Senior is an 11% fat horse feed intended for senior equine athletes. It contains energy from digestible fiber sources and extruded fat nuggets with a maximum of 18% NSC.
Proformance 14 (Excel Equine Feeds)
BroodmareBroodmare
HealthHealth
NutrientsNutrients
PerformancePerformance
Proformance 14 by Excel Equine Feeds is a fortified textured feed intended for broodmares, foals, weanlings, yearlings and performance horses.
Proformance Sales Prep (Excel Equine Feeds)
GrowthGrowth
HealthHealth
NutrientsNutrients
NutritionNutrition
Proformance Sales Prep by Excel Equine Feeds is a textured feed intended to keep growing horses in proper condition for sale day.
Prolong Time (Capstone Horse Feed)
BroodmareBroodmare
Competition HorsesCompetition Horses
DigestionDigestion
StallionStallion
Prolong Time by Capstone Horse Feed is a low glycemic pelleted feed intended for breeding, growing and sport horses.
PROMINENT Textured Horse Feed (BUCKEYE Nutrition)
Competition HorsesCompetition Horses
MuscleMuscle
PerformancePerformance
ProteinProtein
Prominent Textured Horse Feed by Buckeye Nutrition is a complete feed formulated for performance horses. It is palatable and provides 14% protein, 32% NSC and energy from oats, wheat, corn, and soybean oil.
Promita (Mitavite)
Bone HealthBone Health
BroodmareBroodmare
GrowthGrowth
PerformancePerformance
Promita by Mitavite is a high protein extruded feed intended for breeding and performance horses.
ProSetol (Hestevard)
CalmingCalming
Gut HealthGut Health
HealthHealth
RecoveryRecovery
ProSetol by Hestevard is a powdered supplement intended to support nervous horses and ponies.
Protein Plus (McMillan Equine Feeds)
Gut HealthGut Health
MuscleMuscle
PerformancePerformance
ProteinProtein
Protein Plus by McMillan Equine Feeds is a complete textured feed containing no oats. It is intended to meet the nutritional needs of performance horses and horses in heavy work.
Protek GI (Kelato)
DigestionDigestion
Gut HealthGut Health
HealthHealth
HindgutHindgut
Protek GI by Kelato is a supplement intended to support overall digestive health in horses.
Protenza (Hallway)
CalmingCalming
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
NutritionNutrition
Protenza from Hallway is a textured feed fortified with Stamm 30, formulated for the competition horse. This feed contains 10% protein and 10% fat.
Prove PRO:formance (Farrier’s Magic)
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
NutritionNutrition
Prove PRO:formance is a complete grain ration intended to help provide horses, of all ages and levels of work, with all the needed nutrients that they might not have if only fed pasture or hay.

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