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Calcium Carbonate - Feed Ingredient

Calcium Carbonate (CaCO3) is a mineral compound derived from limestone, chalk, or marble. It is used in equine diets to supply calcium, which is essential for bone formation, muscle function, and metabolic processes.

While Calcium Carbonate is an economical supplement, its inclusion in feed formulations must be carefully balanced with other minerals, particularly phosphorus, to maintain an optimal calcium-to-phosphorus ratio. An imbalance can lead to metabolic issues and affect bone mineralization in growing horses.

The following equine feeds, supplements and products contain Calcium Carbonate 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.
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.
LMF Super Supplement NW A (LMF Horse Feeds)
Easy KeeperEasy Keeper
HealthHealth
NutritionNutrition
Ration BalancerRation Balancer
LMF Super Supplement is a ration balancer from LMF Horse Feeds. This feed is intended for easy keepers, and contains vitamins and minerals to balance a forage based diet.
Lobs Reward Cube (St.Hippolyt)
FlavorFlavor
HealthHealth
NutrientsNutrients
NutritionNutrition
Lobs Reward Cubes by St.Hippolyt are intended to be used as a tasty treat for all horses.
Longevity (McCauley’s Equine Formulas)
Gut HealthGut Health
SeniorSenior
StressStress
Weight IssuesWeight Issues
Longevity is a pelleted horse feed targeted to senior and stressed horses. It is designed to support body condition and gut health in senior horses.
Loose Horse Mineral GFC (Masterfeeds)
ExerciseExercise
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Masterfeeds Loose Horse Mineral GCF is a powdered mineral and vitamin supplement designed to be fed with a forage-based diet. This supplement provides nutrients required in times of stress or during periods of heavy exercise and growth.
Low ‘N Steady (Buckeye)
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
SeniorSenior
Low 'N Steady by Buckeye is a low NSC (8.5%) ration balancer intended for mature horses, and metabolic horses or ponies.
Low Cal Cruiser (Barastoc)
DigestionDigestion
Gut HealthGut Health
NutrientsNutrients
Weight IssuesWeight Issues
Low Cal Cruiser from Barastoc is a feed meant for horses that are resting, in light work, or who have weight issues. It has a low starch and calorie content that can also support gut health and digestive abilities.
Low GI Cube (Barastoc)
EnergyEnergy
GrowthGrowth
NutrientsNutrients
PerformancePerformance
Barastoc's Low GI Cube is a cubed feed that is low in sugar. It contains energy that can be released slowly and can be given to performance horses, breeding horses, or growing horses.
Low Molasses 12% (Brooks)
Easy KeeperEasy Keeper
NutritionNutrition
PerformancePerformance
SeniorSenior
Brooks 12% from Brooks is a textured horse feed. 12% Sweet Feed is intended for mature horses. This feed contains 12% crude protein and 4% fat.
Low Starch (Triple Crown)
Complete FeedComplete Feed
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
SeniorSenior
Triple Crown Low Starch is a pelleted feed containing a lower level of 13.5% NSC. It has no corn, molasses or alfalfa meal which can cause excitability in horses.
Low Starch Horse Feed (New Country Organics)
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
NutritionNutrition
ProteinProtein
Low Starch Horse Feed by New Country Organics is a textured feed intended for easy-keepers. It contains organic grains, probiotics, prebiotics, live yeast, and enzymes meant to support hindgut health.
Low Starch Omega Plus (Equine Advantage)
Caloric EnergyCaloric Energy
FatFat
FiberFiber
NutritionNutrition
Low Starch Omega Plus is intended for horses that need moderate to significant calories added to their diet. This diet is suitable for horses with Insulin Resistance, Cushing's Disease, and PSSM due to the low NCS.
Low Starch Pellets (Krafft)
Complete FeedComplete Feed
EnergyEnergy
Gut HealthGut Health
Low NSC FeedsLow NSC Feeds
Low Starch Pellets by Krafft is a low NSC feed intended to support gastric health in horses.
LQ-Performance (DAC)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
LQ-Performance by DAC is a liquid vitamin and mineral supplement. It is formulated with chelated trace minerals, selenium, and chromium.
Lucky Horse Cookies (Havens Horsefeed)
Caloric EnergyCaloric Energy
GrainsGrains
NutritionNutrition
VitaminsVitamins
Lucky Horse Cookies by Havens Horsefeed is a cereal-based treat with a vanilla flavour for horses. It contains added minerals and 500 mg of vitamin E. This treat can be fed to all horses and ponies.
Luminance Fortified Equine Conditioning Supplement (Hallway Feeds)
Caloric EnergyCaloric Energy
Omega 3-6-9Omega 3-6-9
PerformancePerformance
Weight IssuesWeight Issues
Hallway Luminance is a fat supplement for horses that require additional body condition. It is formulated to add calories to the diet for performance horses and horses being prepared for sale.
Luminance Fortified Equine Conditioning Supplement (Saracen Horse Feeds)
Caloric EnergyCaloric Energy
Omega 3-6-9Omega 3-6-9
PerformancePerformance
Weight IssuesWeight Issues
Saracen Luminance is a fat supplement for horses that require additional body condition. It is formulated to add calories to the diet for performance horses and horses being prepared for competition.
M Power (NAF Equine)
AntioxidantAntioxidant
GrowthGrowth
MuscleMuscle
NutrientsNutrients
M Power from NAF Equine is intended for performance horses, young horses, and growing horses. This supplement is meant to support performance, stamina, and muscle development.
M V Balancer Lite (Matrix)
FiberFiber
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
M V Balancer Lite by Matrix is a lower protein ration balancer that supplies 10% protein. It is designed for horses that don't require high protein in their diet.
M V Balancer Original (Matrix)
NutrientsNutrients
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
M V Balancer Original by Matrix is a pelleted ration balancer with a high protein content of 20%. It supplies a concentrated level of vitamins and minerals.
M10 Balancer (McCauley’s)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
M10 Balancer by McCauley's is a pelleted vitamin and mineral supplement intended for horses at maintenance or in light work.
M30 (McCauley’s)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
PerformancePerformance
M30 by McCauley's is a supplement intended to balance the diet of all horse types.
Magic (NAF Equine)
CalmingCalming
Competition HorsesCompetition Horses
HerbHerb
StressStress
Magic from NAF Equine is a supplement that is intended to support calming behaviours in all horses and ponies. This supplement contains magnesium, Withania, and hops.
MagnaGard Gastric Support Supplement (Eagle Equine)
DigestionDigestion
Gut HealthGut Health
HindgutHindgut
ImmunityImmunity
MagnaGard Gastric Support from Eagle Equine is a powdered equine supplement intended to prevent ulcers. MagnaGard Gastric Support is also a source of magnesium and trace minerals for horses.
Magnify (Dove Performance Nutrition)
FatFat
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Magnify from Dove Performance Nutrition is a pelleted ration that contains minerals, vitamins, and higher levels of fat. It is made for any class of horse.
Magnify HF – High Fat (D&D Nutrition)
FatFat
ForageForage
NutritionNutrition
Omega 3-6-9Omega 3-6-9
Magnify HF - High Fat by D&D Nutrition is a pelleted feed with an elevated level of fat, fibre, and protein intended for horses of all life stages. It contains energy sources such as alfalfa, rice bran, and coconut meal.
Magnitude Powder (Equine America)
CalmingCalming
HealthHealth
Mineral BalanceMineral Balance
StressStress
Magnitude Powder from Equine America is a supplement that is meant to support the nervous system and assist with relaxation and calmness. It contains magnesium and calcium.
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.
Maintenance Pellets (Ritchie Smith – Harmony)
GrowthGrowth
HealthHealth
NutritionNutrition
Weight IssuesWeight Issues
Maintenance Pellets from Ritchie Smith's Harmony is a pelleted feed intended for growing horses and horses in moderate work. This feed contains 13% crude protein and 16% crude fibre. Maintenance Pellets are intended for horses who need additional calories.
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 (Ace Hi Feeds)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Mare & Foal by Ace Hi Feeds is a supplemental feed intended for growing, gestating and lactating horses. It contains at least 16% protein from sources such as soybean meal, whey, and dried distillers grains.
Mare & Foal (Kelley’s Feed)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Mare & Foal by Kelley's Feed is a supplemental feed intended for growing, gestating, and lactating horses. It is a barley-based feed that contains at least 16% protein, added vitamins, and a blend of organic and inorganic minerals.
Mare & Foal (Matrix)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Mare & Foal by Matrix is a pelleted complete feed formulated for broodmares and growing foals. It provides a high level of protein (16%) and moderate fat (5%) to meet the demands of gestation and growth.
Mare & Foal (Running Horse Elite Equine Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Running Horse Elite Mare & Foal is a high-fat feed that contains 16% protein and 9% fat from sources such as wheat middlings, rice bran, and soybean oil. This feed is targeted at pregnant, lactating, and growing horses.
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 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 Milk Replacer (Baileys Horse Feeds)
FoalFoal
GrowthGrowth
NutritionNutrition
ProteinProtein
Mare's Milk Replacer from Baileys Horse Feeds is intended for orphaned or rejected foals after receiving colostrum. This feed contains milk protein, vitamins, and minerals vital for the foal's optimum growth.
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.
Masterlyx All-Purpose Block (Masterfeeds)
HealthHealth
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
Masterlyx All-Purpose Block is a free-choice mineral and vitamin supplement in a molasses block format. It is intended for beef cattle, horses, sheep, and goats.
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 Pellet (Matrix)
Complete FeedComplete Feed
HealthHealth
NutritionNutrition
SeniorSenior
Mature Horse Pellet by Matrix is a complete pelleted feed intended for mature horses that provides 14% protein and 4.5% fat. It contains energy sources such as barley, alfalfa meal, and wheat.

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