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L-Ascorbyl-2-Polyphosphate (Vitamin C) - Feed Ingredient

L-Ascorbyl-2-Polyphosphate, also known as Ester-C or Vitamin C, is an ingredient commonly found in horse feeds and supplements. As a stable form of Vitamin C, it has higher bioavailability and is better absorbed and utilized by the horse’s body. Vitamin C is a water-soluble vitamin that plays a critical role in the horse’s immune system and in the synthesis of collagen, a key component of connective tissues.

L-Ascorbyl-2-Polyphosphate is a form of Vitamin C that has been chemically modified, which makes it more stable than traditional Ascorbic Acid. The phosphate esterification of Ascorbic Acid results in an ingredient that is less susceptible to degradation, especially in the presence of heat and light.

While horses, unlike humans, can produce Vitamin C in their liver, there are circumstances where dietary supplementation may be beneficial. For example, horses under stress due to intense work, illness, old age, or poor nutrition may not produce enough Vitamin C to meet their requirements. Supplementation with L-Ascorbyl-2-Polyphosphate can ensure that these horses receive adequate levels of Vitamin C.

The following equine feeds, supplements and products contain L-Ascorbyl-2-Polyphosphate (Vitamin C) as an ingredient.

Feeds, Supplements & Products
Inspire PEAK Performance Amp (Blue Seal)
Amino AcidAmino Acid
EnergyEnergy
PerformancePerformance
VitaminsVitamins
Inspire PEAK Performance Amp from Blue Seal is a pelleted feed intended for performance horses. It is meant to provide high energy and contains amino acids, fat, vitamins and minerals.
Inspire PEAK Racer (Blue Seal)
Caloric EnergyCaloric Energy
GrainsGrains
PerformancePerformance
RespiratoryRespiratory
Inspire PEAK Racer from Blue Seal is a grain ration for performance horses such as racehorses. It is nutrient and calorie dense that has low dust and fiber, intended for horses with respiratory issues.
Inspire PEAK Secure (Blue Seal)
DigestionDigestion
HealthHealth
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Inspire PEAK Secure from Blue Seal is a low NSC feed that is intended for maintenance and performance horses. It contains vitamins, minerals, yeast, fiber and protein.
Inspire PEAK Versatility (Blue Seal)
Caloric EnergyCaloric Energy
LactationLactation
NutrientsNutrients
StallionStallion
Inspire PEAK Versatility from Blue Seal is a feed intended for growing horses, performance horses, breeding stallions, and lactating mares. It contains energy through carbs, fat and fiber.
Inspire Pride (Blue Seal) [Discontinued]
Complete FeedComplete Feed
FiberFiber
Gut HealthGut Health
NutrientsNutrients
Inspire Pride by Blue Seal is a complete feed that is intended for maintaining mature horses. It is in cube form and high in fiber and is meant to help with gut health.
Inspire Rider (Blue Seal)
ExerciseExercise
FlavorFlavor
GrainsGrains
PerformancePerformance
Inspire Rider is a complete textured feed intended for maintenance to lightly exercised adult horses. It is composed of grains coated in molasses to encourage palatability.
Inspire Senior (Blue Seal)
Complete FeedComplete Feed
FatFat
FiberFiber
SeniorSenior
Inspire Senior from Blue Seal is a complete feed intended for senior horses in performance or maintenance. It is high in fiber and fat, meant to support digestion and body condition.
Inspire Sport (Blue Seal)
EnergyEnergy
FatFat
PerformancePerformance
StaminaStamina
Blue Seal Inspire Sport is a pelleted grain ration intended for mature performance horses. Energy sources include wheat middlings, ground corn, wheat flour, cane molasses, and vegetable oil.
Inspire Strider (Blue Seal)
ExerciseExercise
GrainsGrains
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Blue Seal Inspire Strider is a pelleted grain-based feed intended for mature horses at maintenance or in light work. It is designed to provide lower protein and fat levels for horses that require reduced caloric energy or easy keepers.
Inspire Trotter (Blue Seal)
Complete FeedComplete Feed
DigestionDigestion
ExerciseExercise
FiberFiber
Inspire Trotter is a pelleted feed from Blue Seal, intended to supplement the diet of horses with limited access to forage (hay or pasture). It is formulated with wheat middlings, alfalfa meal and soybean hulls, and contains 14% protein.
Integrity Adult/Senior (Integrity Horse Feeds)
Complete FeedComplete Feed
ExerciseExercise
Gut HealthGut Health
SeniorSenior
Integrity Adult/Senior is a 5.4% starch textured feed designed for adult and senior horses in light to moderate work. Energy sources include beet pulp, soy hulls, rice bran, cane molasses, grains and canola oil.
Integrity Growth (Integrity Horse Feeds)
Caloric EnergyCaloric Energy
FoalFoal
GrowthGrowth
ProteinProtein
Integrity Growth is a textured feed designed for growing horses between 10-12 months to 3 years of age. It is formulated with 15% protein and 7.8% starch.
Integrity Lite (Integrity Horse Feeds)
FatFat
Low NSC FeedsLow NSC Feeds
ProteinProtein
Ration BalancerRation Balancer
Integrity Lite is a 4.3% starch textured feed intended for minis, pleasure horses, and easy keepers. It is a grain-free feed with a moderate fat content and low-calorie density.
Integrity Mare & Foal (Integrity Horse Feeds)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Integrity Mare & Foal is a pelleted feed designed for late-gestation mares, lactating mares and nursing, creep, and weanling foals. It has a 16.2% starch content.
Integrity Performance (Integrity Horse Feeds)
EnergyEnergy
ExerciseExercise
MuscleMuscle
PerformancePerformance
Integrity Performance is a high-calorie textured feed designed for adult horses in moderate to heavy work. It provides 10% fat and 8.7% starch.
Jump-Start Plus (Manna Pro)
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
StressStress
Jump-Start Plus is a digestive paste that supplies probiotics, sodium bicarbonate, vitamins, and minerals. It is intended to be used during times of stress such as transportation, illness, or competition.
Junior Horse (Kelley’s Feed)
FoalFoal
GrowthGrowth
NutritionNutrition
ProteinProtein
Junior Horse by Kelley's Feed is an alfalfa-based textured feed intended for weanlings, yearlings, and two-year-old's. It is intended to be fed alongside a quality forage as a supplement.
Kalm N EZ GC Plus (Tribute)
Complete FeedComplete Feed
FatFat
FiberFiber
JointsJoints
Kalm 'N EZ GC Plus is a pelleted complete feed with added glucosamine, chondroitin sulfate, and methylsulfonlymethane (MSM). It contains 14% crude protein, 8% crude fat and an NSC of 13.5%.
Kalm N EZ Pellets (Tribute)
Complete FeedComplete Feed
DigestionDigestion
FatFat
FiberFiber
Tribute Kalm 'N EZ Pellet is a complete horse feed formulated with no corn, oats, or molasses. Providing 13.5% NSC, this feed is appropriate for horses that require a low NSC diet.
Kalm Performer GC Plus (Tribute)
Complete FeedComplete Feed
JointsJoints
PerformancePerformance
RespiratoryRespiratory
Tribute Kalm Performer is a pelleted complete feed intended for mature horses on high protein forages like alfalfa hay. It is a corn-free formula with steam-crimped grains to support digestibility. It provides 24% NSC.
Lamivite (Equestrizone)
AntioxidantAntioxidant
Gut HealthGut Health
HindgutHindgut
NutrientsNutrients
Lamivite from Equestrizone is a blend of naturally sourced antioxidants and micronutrients to support a high fibre, low concentrate diet. It supports healthy stomach and hindgut functions in 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.
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.
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.
Min-A-Vite (Blue Seal) [DISCONTINUED]
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Min-A-Vite from Blue Seal is a vitamin and mineral supplement intended for horses and ponies of all ages and work levels. Min-A-Vite uses a mix of inorganic and organic trace minerals.
MultiSentials 1:1 (Sentinel Care)
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
PerformancePerformance
VitaminsVitamins
MultiSentials 1:1 by Sentinel Care is a complete granular supplement formulated to correct nutritional deficiencies caused by hay and pasture-based diets. It is suitable for all classes of working horses
Parkmore Special Vitamin/Mineral Pelleted Supplement (Parkmore Supplements)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Parkmore Special Vitamin/Mineral Pelleted Supplement is a trace mineral and vitamin supplement designed for all ages and working classes of horses. It can be fed in addition to grain or on its own.
Perfomix (Cavalor)
Complete FeedComplete Feed
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
Cavalor Perfomix is a complete textured feed intended for active recreational and competition horses. It provides 11.5% protein and 4% fat from ingredients such as oats, wheat middlings, barley and soy hulls.
Pleasure Sweet (Buckeye)
Complete FeedComplete Feed
DigestionDigestion
NutritionNutrition
SeniorSenior
Pleasure Sweet is a multi-particle sweet feed with added molasses to improve palatability. This feed supports digestibility and is intended for mature maintenance or lightly worked horses.
Power Finish (Tribute)
Complete FeedComplete Feed
EnergyEnergy
ExerciseExercise
PerformancePerformance
Tribute Power Finish is a high-fat textured feed intended for adult horses in heavy training. It provides highly digestible energy sources to support the calorie requirements of racehorses. Power Finish contains high levels of protein (13% crude protein), fat (10% crude fat), and NSC (32%).
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.
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.
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.
Pure Vitamin C Powder (AniMed)
ImmunityImmunity
IngredientIngredient
StressStress
VitaminsVitamins
Pure Vitamin C Powder from AniMed contains pure ascorbic acid. This supplement can help build immunity and decrease the severity of illnesses/infections. It can also help in times of stress.
RACE ‘N WIN Textured Feed (BUCKEYE Nutrition)
Complete FeedComplete Feed
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
RACE 'N WIN is a textured feed designed for performance horses who require high-energy feed. It also contains added amino acids, beet pulp, probiotics, and prebiotic ingredients.
Remission Hoof Supplement (AniMed)
Hoof HealthHoof Health
ProbioticProbiotic
Toxin BinderToxin Binder
YeastYeast
Remission Hoof Supplement is an equine supplement composed of amino acids, vitamins and minerals to support hoof health. It provides 20 mg of biotin per serving.
Renew Gold Senior (Manna Pro)
Caloric EnergyCaloric Energy
JointsJoints
PerformancePerformance
SeniorSenior
Renew Gold Senior from Manna Pro is an extruded pellet that combines stabilized rice bran, CoolStance® Coconut Meal, ground peas, and stabilized ground whole flax. It also contains added glucosamine and chondroitin sulphate for joint support.
Safe ‘N Easy Complete (Buckeye)
Complete FeedComplete Feed
DentalDental
GrainsGrains
NutritionNutrition
Buckeye SAFE 'N EASY™ Complete Pelleted Feed is a feed intended for horses or ponies with dental issues or horses with limited forage in their diet. It is meant to provide an easy-to-chew fiber blend with no corn or molasses.
SAFE ‘N EASY Pelleted Feed (BUCKEYE Nutrition)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
FiberFiber
HindgutHindgut
Buckeye Safe 'N Easy™ Pelleted Feed is a 12.5% NSC horse feed intended for starch-sensitive horses and ponies or those that require a lower calorie diet. It is formulated with no corn or molasses.
SAFE ‘N EASY Performance (BUCKEYE Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Mineral BalanceMineral Balance
PerformancePerformance
Buckeye SAFE 'N EASY™ Performance is a pelleted horse feed that provides high energy density from fat and fibre. It has a 13.5% NSC and is corn- and molasses-free.
SAFE ‘N EASY Textured Feed (Buckeye)
Complete FeedComplete Feed
DentalDental
Gut HealthGut Health
NutrientsNutrients
Buckeye SAFE 'N EASY Textured Feed is a 16.5% NSC feed made without corn or molasses. This feed provides moderate energy density and is intended for horses requiring a low calorie diet.
Senior Balancer (Buckeye)
JointsJoints
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
Buckeye SENIOR BALANCER is a pelleted ration balancer for mature horses. It provides vitamins, minerals and amino acids and contains the joint supplement MSM.
Senior Pellet (Right Choice)
FatFat
FiberFiber
NutritionNutrition
SeniorSenior
Senior by Right Choice is a pelleted complete feed intended for senior horses with elevated protein. It contains 14% protein, 7% fat, and 19% NSC.
Senior Sport (Tribute)
Complete FeedComplete Feed
ExerciseExercise
FiberFiber
SeniorSenior
Tribute Senior Sport™ is a high calorie feed for mature performance horses. It provides 16.5% NSC with 10% fat and 18% fibre to support performance.
Senior Sport with Glucosamine (Tribute)
ExerciseExercise
FatFat
FiberFiber
SeniorSenior
Senior Sport with Glucosamine by Tribute is a textured feed for seniors with added glucosamine that intends to support joint health. It contains high fat and fibre to support calmer performances.
Senior Weight Accelerator (Manna Pro)
Caloric EnergyCaloric Energy
FatFat
SeniorSenior
Weight IssuesWeight Issues
Senior Weight Accelerator from Manna Pro is a high-fat supplement intended to promote weight gain. Senior Weight Accelerator contains 3% crude protein, 80% crude fat, and 5% crude fibre.
Seniority Low NSC (Tribute)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Seniority Low NSC from Tribute is a complete feed containing 10% NSC (Starch + Sugar). This feed is intended for horses with sugar and starch sensitivities.
Seniority Pellet (Tribute)
Amino AcidAmino Acid
Complete FeedComplete Feed
PerformancePerformance
SeniorSenior
Seniority Pellet is a pelleted complete feed formulated for adult and senior horses. It is a low-calorie feed with a high feeding rate and can be used to replace forage in the diet.
Seniority™ Pellet (Tribute)
Complete FeedComplete Feed
HealthHealth
NutrientsNutrients
Ration BalancerRation Balancer
Tribute Seniority™ Pellet is an 18% NSC complete feed for mature horses. It provides energy from digestible fiber sources including dehulled soybean and alfalfa meal, wheat middlings, and beet pulp.
Sentinel Active Senior (Blue Seal)
ExerciseExercise
FatFat
FiberFiber
SeniorSenior
Blue Seal Sentinel Active Senior is a pelleted feed formulated for active senior horses or hard-keepers. With energy sources such as wheat middlings, soybean hulls, and soybean oil, Sentinel Active Senior contains 19.7% NSC.

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