Analyze Diet
Home / Feeds / Ingredients / Vitamins /Ascorbic Acid (Vitamin C Supplement)

Ascorbic Acid (Vitamin C Supplement) - Feed Ingredient

Ascorbic acid, commonly known as vitamin C, is a water-soluble vitamin that plays a crucial role in antioxidant defense, collagen synthesis, and immune function. Unlike humans, horses can produce vitamin C in their liver from glucose, reducing their dependence on dietary sources.

However, in certain situations—such as high stress, illness, aging, or intense exercise—horses may benefit from supplemental ascorbic acid to support immune function and tissue repair. Because ascorbic acid is sensitive to heat, light, and oxidation, stabilized forms, such as L-ascorbyl-2-polyphosphate, are often used in feed to ensure potency.

The following equine feeds, supplements and products contain Ascorbic Acid (Vitamin C Supplement) as an ingredient.

Feeds, Supplements & Products
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.
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.
QuadraCare (The Mill)
DigestionDigestion
HealthHealth
Hoof HealthHoof Health
JointsJoints
QuadraCare from The Mill is a pelleted hoof, digestion, and joint supplement. QuadraCare is intended to support joint health, digestive function, and hoof quality in horses.
Quantify (Hallway)
EnergyEnergy
FatFat
NutritionNutrition
Weight IssuesWeight Issues
Quantify from Hallway is a cubed feed fortified with Stamm 30 with added fat from soy oil. This feed is intended for broodmares, stallions, performance horses, or horses that are in need of weight gain. Quantify contains 14% protein, 8% fat, and 10% fibre.
Quitt (Farnam)
CalmingCalming
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Farnam Quitt is a pelleted supplement intended to stop wood chewing in horses. It contains vitamins, minerals and fatty acids.
Quitt Chew Stop Pellets (Farnam)
CalmingCalming
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
Quitt is a supplement for horses meant to help them stop wood chewing. It provides vitamins, minerals, and fatty acids intended to meet a horse's nutritional requirements and prevent wood chewing behaviours.
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.
Race 13 (Hallway)
Competition HorsesCompetition Horses
DigestionDigestion
FiberFiber
PerformancePerformance
Hallway's Race 13 is a textured sweet feed with high energy density to meet the calorie requirements of performance horses. It provides moderate 6% fat and 10% fibre content.
Race Time (Capstone Horse Feed)
AntioxidantAntioxidant
HealthHealth
NutritionNutrition
SeniorSenior
Race Time by Capstone Horse Feed is a muesli style feed intended for mature horses.
Racing Formula (DAC)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Racing Formula by DAC is a vitamin and mineral supplement designed for high performance horses. It is formulated with trace minerals, Vitamin E , biotin and probiotics.
Ration Balancer (Woody’s Horse Nutrition)
DigestionDigestion
Grain FreeGrain Free
ProteinProtein
Ration BalancerRation Balancer
Woody’s Feed Ration Balancer is a concentrated, pelleted feed intended to balance a forage-based diet. It provides chelated trace minerals and added probiotics. This feed is intended for all horses and ponies at any level of work.
Re-Inforcer EQ (MVP)
AntioxidantAntioxidant
ExerciseExercise
JointsJoints
RecoveryRecovery
Re-Inforcer EQ by MVP is a pelleted supplement that intends to support joints, cartilage and connective tissue. It contains zinc, manganese and copper that intends to provide antioxidant support.
Recovery Plus (Woody’s Horse Nutrition)
ExerciseExercise
MuscleMuscle
PerformancePerformance
RecoveryRecovery
Woody’s Recovery Plus is an equine supplement intended to be fed to horses post-exercise. It provides amino acids from whey protein concentrate, yeast, Vitamin E and other vitamins and minerals.
Rejuvenaide Max Liquid (ProElite)
GrowthGrowth
HealthHealth
JointsJoints
MuscleMuscle
Rejuvenaide Max Liquid by Pro Elite is a liquid supplement formulated to support optimal joint and muscle development in growing horses.
Rejuvenaide Max Pellets (ProElite)
Bone HealthBone Health
FoalFoal
GrowthGrowth
JointsJoints
Rejuvenaide Max by ProElite is a pelleted supplement intended to support the joint and tendon development in foals and growing horses.
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.
Renew Gold Xtra (The Phoenix Company)
Gut HealthGut Health
HealthHealth
JointsJoints
UlcersUlcers
Renew Gold Xtra by The Phoenix Company is a joint and gut health supplement formulated for performance horses and active seniors. It provides cool, steady energy while supporting optimal digestive function.
Renewal (Purica)
ExerciseExercise
HealthHealth
JointsJoints
SeniorSenior
Purica Equine Renewal is a joint health supplement for horses containing glucosamine, MSM, TMG, vitamin C and magnesium. It is advertised to aid in pain relief and support movement.
Resist + Vit C (Cavalor)
AntioxidantAntioxidant
HealthHealth
ImmunityImmunity
VitaminsVitamins
Resist + Vit C by Cavalor is a powdered immune support supplement formulated with herbs and antioxidants to enhance the horse's natural defenses. It is ideal for horses that travel frequently or are regularly exposed to other horses.
Resolve (Tribute)
EnergyEnergy
ImmunityImmunity
MuscleMuscle
PerformancePerformance
Resolve is a pelleted complete feed from Tribute that is formulated to provide high-fat and high-fibre content with an NSC of 17.5%. It provides added Vitamin E which can support antioxidant status.
Respiratory (Pure Feed Company)
HealthHealth
Mineral BalanceMineral Balance
RespiratoryRespiratory
VitaminsVitamins
Respiratory by Pure Feed Company is a powdered respiratory supplement to support a healthy respiratory system. It contains MSM and an anti-oxidant combination of vitamins C and E.
Revive Senior (Bluegrass Horse Feed)
Complete FeedComplete Feed
JointsJoints
SeniorSenior
Weight IssuesWeight Issues
Revive Senior from Bluegrass Horse Feed is a feed that is meant to be highly digestible, support condition and joint health in senior horses. This feed can encourage weight gain and can be fed to horses with missing or worn teeth.
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.
Safe Performance Senior (Manna Pro)
Complete FeedComplete Feed
FiberFiber
NutritionNutrition
SeniorSenior
Safe Performance Senior from Manna Pro is a pelleted feed designed for senior horses in work. It is formulated with Max-E Glo® stabilized rice bran and beet pulp. It is a corn- and molasses-free formulation that contains 14% crude protein, 7% crude fat, and 19% NSC.
Safe Starch Forage (Triple Crown)
ForageForage
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
Triple Crown Safe Starch® Forage is a forage-based feed containing a mixture of orchard and timothy hays fortified with vitamins, minerals and direct-fed microbials.
SafeChoice Senior (Nutrena)
Coat QualityCoat Quality
DentalDental
SeniorSenior
Weight IssuesWeight Issues
SafeChoice Senior is an easy-to-chew, high-fat, controlled starch feed intended for older horses. It is meant to support horses experiencing age-related weight loss, fatigue, or horses with muscle or coat quality issues.
SafeChoice Senior LM (Nutrena)
Coat QualityCoat Quality
DentalDental
SeniorSenior
Weight IssuesWeight Issues
SafeChoice Senior LM is a lower-molasses (LM) high-starch feed intended for senior horses, particularly horses that need to gain weight or have dental issues. It contains 14% crude protein, 8% crude fat, and 18.5% NSC.
Security (Doctor’s Choice Supplements)
JointsJoints
PerformancePerformance
Ration BalancerRation Balancer
SeniorSenior
Security by Doctor's Choice Supplement is an organic ration balancer intended for mature and performance horses. It contains glucosamine, chondroitin, and yucca to support joint health.
Senior (Equine Advantage)
FatFat
FiberFiber
GrainsGrains
SeniorSenior
Senior by Equine Advantage is a textured feed intended to provide mature horses with essential nutrients. Ingredients such as shredded beet pulp & soybean hulls increase digestibility.
Senior (Hygain)
HealthHealth
ImmunityImmunity
NutritionNutrition
SeniorSenior
Senior from Hygain is a textured feed intended for senior horses. Senior contains added glucosamine intended to support joint health. This feed also contains added amino acids intended to support muscle development.
Senior (Triple Crown)
Complete FeedComplete Feed
FatFat
Grain FreeGrain Free
SeniorSenior
Triple Crown Senior is a grain-free, beet pulp-based, high-fat feed designed to meet the needs of older horses. It provides 17% fiber and can be fed as the sole ration for horses unable to eat forage due to dental issues.
Senior Active + (Triple Crown)
HealthHealth
NutritionNutrition
SeniorSenior
Weight IssuesWeight Issues
Senior Active + from Triple Crown is an extruded pelleted intended for older horses or hard keepers. This feed is intended for horses with metabolic issues.
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 Combo (DuMor)
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
SeniorSenior
VitaminsVitamins
Senior Combo by DuMor is a comprehensive supplement for senior horses. Senior Combo provides joint, hoof, and digestion support with additive vitamins and minerals.
Senior Combo Multi-Function Supplement (Agrimaster)
Hoof HealthHoof Health
JointsJoints
ProbioticProbiotic
Skin + HairSkin + Hair
Senior Combo Multi-Function Supplement by Agrimaster is a powdered supplement intended to support overall health in senior horses.
Senior Complete Care Mix (Spillers Feeds)
Complete FeedComplete Feed
DigestionDigestion
JointsJoints
SeniorSenior
Senior Complete Care Mix from Spillers Feed is intended for use with senior horses. This feed mix contains natural herbs such as mint, rosemary, dandelion, parsley, and marigold, which adds to the palatability of the feed.
Senior Feed (DuMOR)
Complete FeedComplete Feed
DentalDental
NutritionNutrition
SeniorSenior
Senior Feed by DuMOR is an easy-to-chew formulation for older horses. It contains added biotin to support hooves, 14% crude protein, 4% crude fat, and 19.5% crude fibre.
Senior GC Pelleted Feed (BUCKEYE Nutrition)-[Discontinued]
Complete FeedComplete Feed
HealthHealth
JointsJoints
SeniorSenior
Senior GC is a now-discontinued pelleted feed from Buckeye Nutrition targeted to older horses with functional teeth. Senior GC provided glucosamine, chondroitin, and MSM to support joint health.
Senior Gold (Triple Crown)
DentalDental
DigestionDigestion
FatFat
SeniorSenior
Triple Crown Senior Gold is a grain-free, beet pulp-based soft feed intended for older horses. It contains 14.5% protein, 12.5% fat and 9% NSC. Senior Gold can be mixed with water to form a mash for horses with dental issues or prone to choke.
Senior Health & Wellness (Farnam)
Gut HealthGut Health
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
Farnam's Senior Health & Wellness supplement is formulated for senior horses in light work or at maintenance. Senior Health and Wellness is an extruded nugget feed containing amino acids, vitamins, and minerals for horses on a forage-only diet.
Senior Horse Pelleted (Agrimaster)
DigestionDigestion
HealthHealth
ImmunityImmunity
SeniorSenior
Senior Horse Pelleted by Agrimaster is a pelleted feed intended to meet the nutritional requirements of senior horses.
Senior Horse Rations (Jones Horse Feeds)
Complete FeedComplete Feed
FatFat
Gut HealthGut Health
SeniorSenior
Jones Senior Horse Pellet is a complete feed designed with a high fat content (10%) from rice bran. It also contains elevated levels of protein, vitamins and minerals to support mature horses.
Senior Pellet (Masterfeeds)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
SeniorSenior
Masterfeeds Senior is a complete pelleted horse feed formulated with high-calorie digestible fiber sources and added fat. It is designed to meet the needs of senior horses and horses requiring a low-starch diet and low glycemic ration.
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 Pelleted (Woody’s Horse Nutrition)
DigestionDigestion
FiberFiber
Gut HealthGut Health
SeniorSenior
Woody's Senior Pelleted is a complete pelleted grain-free feed intended for senior horses. It contains digestible fibre sources for horses that can no longer chew long-stem hay.
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 Super-Mash (Spillers Feeds)
Caloric EnergyCaloric Energy
FiberFiber
Gut HealthGut Health
SeniorSenior
Senior-Super Mash from Spillers Feed contains 2.5% sugar, 8.0% starch, and 12% protein. This feed is intended for senior horses and ponies, especially those with poor teeth.

Related Ingredients

Is Your Horse's Diet Missing Anything?

Identify gaps in your horse's nutrition program to optimize their well-being.