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Phosphorus - Feed Ingredient

Phosphorus is an essential macromineral required for numerous physiological functions in horses, including energy metabolism, bone formation, and cellular signaling. It is a component of adenosine triphosphate (ATP), nucleic acids, and phospholipids, and works in close association with calcium to support skeletal health. In the equine body, approximately 80% of total phosphorus is stored in the bones and teeth.

Dietary phosphorus is supplied through both natural feed ingredients and inorganic mineral sources. Common feed-based sources include cereal grains and their byproducts (such as bran), which contain phosphorus largely in the form of phytate—a form that is poorly bioavailable to horses. Inorganic phosphorus sources, such as monosodium phosphate or dicalcium phosphate, are often added to balanced rations to meet specific nutrient requirements and improve bioavailability.

The calcium-to-phosphorus ratio is a critical consideration in equine diets. An ideal ratio typically ranges from 1.2:1 to 2:1, depending on the horse’s age and physiological status. Excessive phosphorus intake, especially when calcium is deficient, can interfere with calcium absorption and contribute to conditions such as nutritional secondary hyperparathyroidism. Therefore, phosphorus levels must be carefully balanced within the overall mineral profile of the diet.

The following equine feeds, supplements and products contain Phosphorus 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.
Monosodium Phosphate (Mad Barn)
Bone HealthBone Health
GrowthGrowth
IngredientIngredient
Mineral BalanceMineral Balance
Monosodium Phosphate is a highly bioavailable source of phosphorus commonly used as an equine supplement. Phosphorus is considered an important component for metabolic function. Adult horses require 17 grams of phsophours a day.
Calf-Manna Performance Supplement (Manna Pro)
Caloric EnergyCaloric Energy
FatFat
Gut HealthGut Health
ProteinProtein
Calf-Manna® Horses Performance Supplement is a high-protein feed intended for recently weaned foals that are having trouble transitioning to solid feeds. It provides added energy and nutrients.
Calm & Condition (Allen & Page)
FiberFiber
IngredientIngredient
NutritionNutrition
Weight IssuesWeight Issues
Calm & Condition from Allen & Page is a high-energy feed that is high in fibre. Calm & Condition contains added vitamins, minerals and probiotics. Calm & Condition is free from barely, molasses and alfalfa.
Calmer (TopSpec)
CalmingCalming
Competition HorsesCompetition Horses
PerformancePerformance
StressStress
Calmer from TopSpec is a caramel-flavoured supplement ideal for anxious horses and ponies or during stressful situations such as showing, travelling, and competing. This supplement contains yeast, B vitamins, magnesium, and tryptophan.
Calphormin (TRM)
Calphormin from TRM is a pelleted mineral supplement for horses containing trace minerals and amino acids to support the normal growth and maintenance of bones.
Camelina Meal (Lozana Health)
Coat QualityCoat Quality
DigestionDigestion
Hoof HealthHoof Health
RecoveryRecovery
Camelina Meal by Lozana Health is a protein supplement intended to support overall health in all classes of horses.
Carbolyte (Excel Equine Feeds)
HealthHealth
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Carbolyte from Excel Equine Feeds is a pelleted feed. This feed is intended for horses who require a reduced starch diet.
Carboraider Complete (King Brand)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Carboraider Complete from King is a pelleted complete feed for horses. Carboraider Complete is intended for adult horses who require lower sugar and starch levels in their diets. This feed is formulated with beet pulp and a rice bran base.
Carboraider Senior (King)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
SeniorSenior
Carboraider Senior by King is a complete feed intended for senior horses requiring controlled levels of starch and sugar.
Cetyl-M Equine Pellets & Powder (Manna Pro)
FatFat
ImmunityImmunity
JointsJoints
Omega 3-6-9Omega 3-6-9
Cetyl-M Equine is a joint supplement from Manna Pro available as a pellet or powder. Active ingredients include cetyl myristoleate complex, glucosamine, methylsulfonylmethane (MSM), ascorbic acid (Vitamin C), and lecithin.
CFS Big’Un 300 (Clarence Farm Services)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
CFS Big'Un 300 is a pelleted feed intended for broodmares, foals, and breeding stallions. It contains 16% protein, 4% fat, and 15% fibre. Big'Un 300 can be used as a creep feed for a nursing foal as they grow.
CFS Elevate ABF (Clarence Farm Services Limited)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
CFS Elevate ABF is a ration balancer that provides vitamins and minerals without significantly increasing calories in the diet. It is formulated with 12% protein and 4% fat, and can be fed alone or in combination with other feeds.
CFS Honesty ABF (Clarence Farm Services Limited)
CalmingCalming
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FiberFiber
CFS Honesty ABF is a pelleted feed for horses at various life stages. It provides moderate calorie density with energy primarily derived from fibre and vegetable fat.
CFS Horse Chow Checkers ABF (Clarence Farm Services)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
ProteinProtein
CFS Horse Chow Checkers is a pelleted high fibre complete feed targeted to mature, active horses or easy keepers. It contains 12.5% protein, 2% fat, and built-in roughage sources.
CFS Pro Horse 200 ABF (Clarence Farm Services Limited)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
VitaminsVitamins
CFS Pro Horse 200 ABF is a pelleted feed intended for leisure, pleasure, and performance horses. It contains no added fat and provides a medium energy density.
CFS Pro Horse 300 ABF (Clarence Farm Services)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
CFS Pro Horse 300 is a coarse sweet feed intended for foals, broodmares, and stallions. This feed contains quality flaked grains to potentially increase digestibility. It has 16% protein, 4% fat, and 15% fibre.
CFS Pro’s Choice ABF (Clarence Farm Services)
Complete FeedComplete Feed
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
CFS Pro's Choice ABF is a pelleted feed formulated for horses with higher calorie needs, such as performance, breeding and growing horses. It provides 13.5% protein, 4% fat and 10% fibre.
CFS Request ABF (Clarence Farm Services)
BroodmareBroodmare
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
GrowthGrowth
CFS Request ABF is a pelleted feed with added fat from vegetable oil intended to support the energy demands of performance, growing, and breeding horses. It contains a moderate level of fat (6%).
CFS Stable Edge ABF (Clarence Farm Services)
DigestionDigestion
FiberFiber
Gut HealthGut Health
NutritionNutrition
CFS Stable Edge ABF is a textured sweet feed targeted to pleasure horses and horses at maintenance. It provides energy from grain and contains 13% protein, 2.5% fat, and 20% fibre.
CFS Sweetena Plus ABF (Clarence Farm Services)
FiberFiber
HealthHealth
NutritionNutrition
ProteinProtein
CFS Sweetena Plus ABF is a textured sweet feed containing flaked, processed grains. It is formulated as a palatable feed for horses from maintenance to performance level work.
Challenger Coarse Mix (Heygates Feeds)
Coat QualityCoat Quality
Competition HorsesCompetition Horses
EnergyEnergy
PerformancePerformance
Challenger Coarse Mix is a high-energy mix intended for horses and ponies in heavy work. It contains linseed oil which is meant to be beneficial for maintaining hoof health and coat condition.
Chelates Plus (Doctor’s Choice Supplements)
HealthHealth
NutritionNutrition
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Chelates Plus is a supplement intended to provide greater nutrient absorbability. It is designed growing, mature, and breeding horses.
Chestnut Active Response (Chestnut Horse Feeds)
Competition HorsesCompetition Horses
EnergyEnergy
FiberFiber
IngredientIngredient
Chestnut Active Response from Chestnut Horse Feeds is a palatable, textured horse feed. Chestnut Active Response is intended for horses in a high level of work. This feed contains 15.4% protein and 14.3% fibre.
Chestnut Daily Maintenance (Chestnut Horse Feeds)
Easy KeeperEasy Keeper
FiberFiber
IngredientIngredient
NutritionNutrition
Chestnut Daily Maintenance from Chestnut Horse Feeds is a horse feed intended for horses and ponies who are in light work or on stall rest. Chestnut Daily Maintenance is a high fibre and low energy feed.
Chestnut Everyday Essential Balancer (Chestnut Horse Feeds)
FiberFiber
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Chestnut Everyday Essential Balancer from Chestnut Horse Feeds is a textured feed providing vitamins, minerals and protein to balance a horse’s diet. Chestnut Everyday Essential Balancer is intended for horses who are not meeting their nutritional requirements from forage alone.
Chestnut Sensitive Performance (Chestnut Horse Feeds)
FiberFiber
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Chestnut Sensitive Performance from Chestnut Horse Feeds is composed of pelleted forages and oil. Chestnut Sensitive Performance is intended for horses who require a low sugar and starch diet.
Classic (CFC Farm Home Center)
FiberFiber
Low NSC FeedsLow NSC Feeds
Mineral BalanceMineral Balance
VitaminsVitamins
Classic from CFC Farm Home Center is a pelleted horse feed that is meant for light working horses. It contains fiber, minerals and vitamins. It also has low sugar levels.
Classic 12 Plus (Manna Pro) [Discontinued]
BroodmareBroodmare
Complete FeedComplete Feed
NutritionNutrition
PerformancePerformance
Classic 12 Plus from Manna Pro is a pelleted feed designed for performance horses, stallions, and broodmares. Classic 12 Plus provides 12% crude protein, 6% crude fat, 8% crude fibre, and uses a mix of organic and inorganic trace minerals.
Classic Care (Lifeline)
Complete FeedComplete Feed
DigestionDigestion
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
Classic Care by Lifeline is a grain and molasses-free pelleted feed. It is intended for easy keepers and horses susceptible to metabolic disorders.
Classic Fibre Cubes (Dodson & Horrell)
FiberFiber
FlavorFlavor
GrainsGrains
NutritionNutrition
Classic Fibre Cubes by Dodson & Horrell is feed meant to supplement additional fibre into the diet, with an elevated level of 18%. This feed also includes a lower starch content to lessen excitability and can be used for horses and ponies.
Classic Fibre Mix (Dodson & Horrell)
FiberFiber
FlavorFlavor
GrainsGrains
NutritionNutrition
Classic Fibre Mix by Dodson & Horrell is a textured feed meant to supplement additional fibre into the diet, with an elevated level of 18%. This feed also includes a lower starch content to lessen excitability and can be used for horses and ponies.
Classic Finish (Quality Feeds)
BroodmareBroodmare
EnergyEnergy
PerformancePerformance
StallionStallion
Classic Finish by Quality Feeds is a textured sweet feed containing beet pulp, it is intended for breeding and performance horses.
Clovite Conditioner (Clovite)
ImmunityImmunity
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
Clovite is a vitamin supplement manufactured by Zoetis that provides vitamin A, D and B12.
Colostrum Supplement (Manna Pro)
FoalFoal
GrowthGrowth
Gut HealthGut Health
ProteinProtein
Colostrum Supplement by Manna Pro is a colostrum additive designed to be fed to newborn calves, kids, lambs, foals, piglets, llama, alpacas, puppies and kittens. It is milk protein-based and fortified with added vitamins and minerals.
Combined 4-Way (Equerry’s)
DigestionDigestion
JointsJoints
Skin + HairSkin + Hair
VitaminsVitamins
Combined 4-Way by Equerry's is a powdered supplement that intends to support digestive, hoof, coat and joint health in senior or performance horses.
Competition Cubes (Bluegrass Horse Feed)
Competition HorsesCompetition Horses
DigestionDigestion
EnergyEnergy
PerformancePerformance
Competition Cubes is an oat-free formula for horses and ponies in moderate work and performance horses. It contains biotin to support hoof health, micronized cereals to support gut health, and Vitamin E to support immunity.
Competition Cubes (Dodson & Horrell)
Competition HorsesCompetition Horses
GrainsGrains
NutritionNutrition
PerformancePerformance
Competition Cubes by Dodson & Horrell is a feed for the performance horse with a protein content of 12%, a fat content of 5%, and a fiber content of 9.4%. This feed includes ingredients such as oats, wheatfeed, dried beet pulp, and rapeseed oil to support a healthy and active lifestyle.
Competition Mix (Bluegrass Horse Feed)
Competition HorsesCompetition Horses
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Competition Mix from Bluegrass Horse Feed is ideal for horses and ponies in moderate work as well as performance horses. This feed supports optimal performance, gut health, bone health, and immunity.
Competition Mix (Dodson & Horrell)
Caloric EnergyCaloric Energy
GrainsGrains
MuscleMuscle
PerformancePerformance
Competition Mix by Dodson & Horrell is a feed designed to support the performance horse with 12% protein, 4.6% fat, and 11.6% fiber content. The feed ingredients supply organic B vitamins, organic amino acids, and yeast to provide added digestibility and support gut health.
Competition Mix (Dunstan)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
PerformancePerformance
Competition Mix by Dunstan is a medium energy textured feed intended for performance horses. It contains extruded cereal grains and protein materials for the provision of medium energy to competing horses.
Complement Advantage (Excel Equine Feeds)
FiberFiber
HealthHealth
NutrientsNutrients
NutritionNutrition
Complement Advantage by Excel Equine Feeds is a textured feed intended for hard keepers or horses in heavy training.
Complement Control (Excel Equine Feeds)
EnergyEnergy
HealthHealth
NutritionNutrition
PerformancePerformance
Complement Control by Excel Equine Feeds is a pelleted feed intended to provide nutrition with a low feeding rate for growing, performance, breeding and maintenance horses.
Complement Foundation (Excel Equine Feeds)
HealthHealth
ImmunityImmunity
NutrientsNutrients
NutritionNutrition
Complement Foundation by Excel Equine Feeds is a beet pulp based textured feed intended for all horse types.
Complete (Triple Crown)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
NutritionNutrition
PerformancePerformance
Triple Crown Complete is a high-fibre feed with beet pulp and added vitamins and minerals designed for performance horses. This feed provides 12% protein and 12% fat in a textured format.
Complete Supplement Pellets (Ritchie Smith – Harmony)
HealthHealth
NutrientsNutrients
NutritionNutrition
Ration BalancerRation Balancer
Complete Supplement Pellets from Ritchie Smith's Harmony is a vitamin, mineral, hoof, and gut supplement. Complete Supplement Pellets are intended for horses on forage-based diets, or horses with metabolic issues.
Conditioning Cubes (Saracen Horse Feeds)
Caloric EnergyCaloric Energy
MuscleMuscle
ToplineTopline
Weight IssuesWeight Issues
Conditioning Cubes is a pelleted feed intended to help horses and ponies gain condition and topline. The low starch cube provides a slow release of energy, with EQUI-JEWEL increasing calorie density.
Conditioning Mix (Heygates Feeds)
Caloric EnergyCaloric Energy
Coat QualityCoat Quality
DigestionDigestion
MuscleMuscle
Conditioning Mix is a coarse mix intended for horses and ponies of all ages and work levels. It is meant to provide additional energy to those in heavier work and those needing better condition.
Convalescent Muesli (Dodson & Horrell)
Complete FeedComplete Feed
DigestionDigestion
GrainsGrains
RecoveryRecovery
Convalescent Muesli by Dodson & Horrell is intended for horses and ponies at rest or in recovery. It contains yeast to support digestion and gut health and QLC antioxidants for immune support.
Cool & Collected (Allen & Page)
Easy KeeperEasy Keeper
IngredientIngredient
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Cool & Collected from Allen & Page is high in fibre and is recommended to be fed soaked. Cool & Collected contains added probiotics and linseed.
Cool Carb (Banks Mill Feeds)
FiberFiber
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Banks Cool Carb is a low sugar and starch feed with 10.5% NSC, intended for horses with gut issues and insulin resistance. This feed contains soybean hulls, wheat middlings, alfalfa meal and beet pulp.
Cool Crunch (Pegasus)
Complete FeedComplete Feed
FiberFiber
Gut HealthGut Health
HindgutHindgut
Cool Crunch by Pegasus is a feed that contains highly digestible fiber to support gut health and minimize glycemic response in horses and ponies.

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