Analyze Diet

Amino Acids - Feed Ingredient

Amino acids are the fundamental components of proteins and play essential roles in muscle development, enzyme activity, immune function, and overall metabolism in horses. They are classified as essential or non-essential based on whether they must be obtained from the diet or can be synthesized by the horse’s body. Essential amino acids, such as lysine, methionine, and threonine, must be provided in sufficient amounts to support protein synthesis and physiological functions.

In equine nutrition, amino acids are included in feeds and supplements to improve protein quality and ensure balanced nutrient intake. Lysine is considered the first limiting amino acid in horse diets, meaning its deficiency can restrict protein utilization even if total protein intake appears adequate. Methionine, another essential amino acid, is critical for hoof integrity, muscle maintenance, and metabolic processes but is often limited in plant-based protein sources. Proper amino acid balance is particularly important for young, growing horses, performance horses, and those on forage-based diets with lower-quality protein sources.

The following equine feeds, supplements and products contain Amino Acids 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.
DL-Methionine (Mad Barn)
Amino AcidAmino Acid
Coat QualityCoat Quality
Competition HorsesCompetition Horses
IngredientIngredient
Methionine is an essential amino acid that is important for maintaining healthy tendons, ligaments, and hooves. Growing horses and horses who are in heavy exercise have a higher demand for methionine and would benefit from supplementation.
L-Lysine (Mad Barn)
Amino AcidAmino Acid
ImmunityImmunity
IngredientIngredient
JointsJoints
Lysine is an essential amino acid that is important for forming strong collagen bonds. Lysine is the most commonly deficient amino acid in equine diets.
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.
Three Amigos (Mad Barn)
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
RecoveryRecovery
Three Amigos is an equine essential amino acid supplement containing lysine, methionine, and threonine in a 5:3:2 ratio. These are the three most common limiting amino acids in the horse's diet.
Threonine (Mad Barn)
Amino AcidAmino Acid
Gut HealthGut Health
MuscleMuscle
ToplineTopline
Threonine is an essential amino acid that is required to be supplied in equine diets as it cannot be synthesized endogenously. Threonine supplementation may improve nutrient absorption.
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.
Red Cal HERBAL (Natural Horse Vet)
ElectrolyteElectrolyte
HerbHerb
Mineral BalanceMineral Balance
VitaminsVitamins
Red Cal HERBAL by Natural Horse Vet is a granular supplement with added natural flavours that is intended for all life stages of horses and other livestock that provides salt, minerals, and electrolytes.
Redglo (Farnam)
EnergyEnergy
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Farnam Redglo is a liquid vitamin and mineral supplement for horses. It is marketed as an iron-rich multivitamin supplement.
Refit (Excel Equine Feeds)
DigestionDigestion
MuscleMuscle
PerformancePerformance
RecoveryRecovery
Refit by Excel Equine Feeds is a pelleted supplement intended to support digestive health, muscle recovery, energy metabolism and immunity in performance horses.
Regen-X (100 X Equine)
Amino AcidAmino Acid
Competition HorsesCompetition Horses
PerformancePerformance
RecoveryRecovery
Regen-X from 100 X Equine is an amino acid supplement intended for performance horses. Regen-X is intended to build muscle tone and support recovery after exercise.
Regener8 Cubes (Dodson & Horrell)
Competition HorsesCompetition Horses
NutritionNutrition
PerformancePerformance
RecoveryRecovery
Regener8 Cubes by Dodson & Horrell is a high protein feed that supports high performance horses and provides an additional elevated amount of vitamin E. This feed intends to help recovery specifically, with added amino acids and antioxidants to help in this process.
ReitHoof Advanced Hoof Support (HorseTech)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
ReitHoof Advanced Hoof Support from HorseTech is a pelleted hoof supplement that has an alfalfa meal base. It contains minerals, vitamins, and amino acids.
Relaxmor (DuMor)
CalmingCalming
HealthHealth
NutrientsNutrients
PerformancePerformance
Relaxmor by DuMor aids in a horse's nervous system function. Relaxmor contains Magnesium, Thiamine and Tryptophan which aid in calming a nervous horse.
Release (Hygain)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
HealthHealth
Weight IssuesWeight Issues
Release by Hygain is a high-energy textured feed intended for performance horses. Release contains chelated minerals and natural vitamin E intended to support hard keepers.
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 (Manna Pro)
FatFat
FiberFiber
Omega 3-6-9Omega 3-6-9
ProteinProtein
MannaPro Renew Gold is a stabilized rice bran supplement with CoolStance® coconut meal, flaxseed, and yeast. This high-fat (17%) feed provides caloric energy without excess sugars and starches.
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.
Repair Daily Formula (Red Hot Equine Aminos)
Amino AcidAmino Acid
MuscleMuscle
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Repair Daily Formula by Red Hot Equine Aminos is a powdered supplement formulated with amino acids, trace minerals, and electrolytes. It is specifically designed to support muscle recovery in horses.
RepleniMash (Purina)
DigestionDigestion
HydrationHydration
PerformancePerformance
VitaminsVitamins
RepleniMash from Purina is a mash that is intended to support recovery, coat health, digestion, and hydration. It is meant for any life stage performance horse.
Rescue Aid (DAC)
DigestionDigestion
Gut HealthGut Health
HealthHealth
ProbioticProbiotic
Rescue Aid by DAC is a powdered supplement designed to support gut health and immune function in horses. It is formulated with probiotics to help maintain a healthy digestive system.
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.
Respond High Grain Formula (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
GrainsGrains
Weight IssuesWeight Issues
Respond High Grain Formula is a sweet feed style complete feed formulated for the high energy requirements of racehorses. It provides 12% protein and 6% fat with low levels of fibre.
RestorePRO Paste (Horse Logic Pro) – [Discontinued]
Competition HorsesCompetition Horses
ElectrolyteElectrolyte
HealthHealth
HydrationHydration
RestorePRO Paste from Horse Logic Pro is an electrolyte in paste form for horses. RestorePRO Paste contains ingredients intended to support mineral and hydration levels in horses.
Rhodimet AT88
Amino AcidAmino Acid
GrowthGrowth
IngredientIngredient
MuscleMuscle
Phodimet AT88 is a feed additive that provides the amino acid methionine. It is primarily used in poultry and swine feeds.
Rice Bran (Triple Crown)
EnergyEnergy
ExerciseExercise
FatFat
Weight IssuesWeight Issues
Triple Crown Rice Bran Natural is a high-fat horse supplement intended for underweight and hard-working performance horses. It contains added amino acids and calcium.
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 Controlled Starch Formula (Manna Pro)
Complete FeedComplete Feed
FatFat
NutritionNutrition
PerformancePerformance
Safe Performance Controlled Starch Formula from Manna Pro is a complete feed designed for horses at all life stages. It contains 14% crude protein and 17% NSC. Safe Performance Controlled Starch Formula contains Max-E Glo® Stabilized Rice Bran as a source of fat and energy.
Safe Performance Elite High Fat (Manna Pro)
Complete FeedComplete Feed
FatFat
NutritionNutrition
PerformancePerformance
Safe Performance Elite High Fat from Manna Pro is a beet pulp-based complete feed designed for horses at all life stages. It contains 12% crude protein and 18% NSCs. Safe Performance Elite High Fat contains Max-E Glo® Stabilized Rice Bran as a source of fat and energy. This feed contains no added corn or molasses.
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 Performance Special Diet (Manna Pro)
Complete FeedComplete Feed
FiberFiber
HealthHealth
Metabolic SyndromeMetabolic Syndrome
Safe Performance Special Diet from Manna Pro is a pelleted feed for adult horses. It uses Max-E Glo® stabilized rice bran as a source of fat and fiber. It contains 14% crude protein, 3% crude fat, and 17% NSC. This product uses a mix of organic and inorganic trace minerals.
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 All Life Stages (Nutrena)
Gut HealthGut Health
ImmunityImmunity
Organic Trace MineralsOrganic Trace Minerals
ToplineTopline
SafeChoice All Life Stages is a pelleted feed that is meant to support skin and coat health, hoof health, and topline support. It is also supposed to assist with gut health and immunity, and contains organic trace minerals.
SafeChoice Maintenance (Nutrena)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
NutritionNutrition
Nutrena SafeChoice Maintenance is a pelleted horse feed that provides a maximum of 25% NSC (20% starch and 5% sugar). It is intended as a low-starch feed to maintain body condition.
SafeChoice Mare & Foal Pellet (Nutrena)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
SafeChoice Mare & Foal Pellet is a horse feed intended for pregnant or lactating mares, weanlings, and yearlings. It contains a maximum of 22% NSC with higher protein meant to meet the needs of growing horses.
SafeChoice Mare & Foal Textured (Nutrena)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Nutrena SafeChoice Mare & Foal Textured is a texturized feed intended for pregnant or lactating mares, weanlings, and yearlings. It contains a maximum of 30% NSC and 16% protein meant to meet the needs of growing horses.
SafeChoice Original (Nutrena) – [DISCONTINUED]
Complete FeedComplete Feed
Gut HealthGut Health
HealthHealth
Ration BalancerRation Balancer
Nutrena SafeChoice Original is a pelleted horse feed intended to meet the nutritional needs of a wide range of horses. It provides 22% NSC with 14% protein and 7% fat. SafeChoice Original is now SafeChoice All Stages.
SafeChoice Perform Pellet (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
NutritionNutrition
SafeChoice Perform is a pelleted feed intended to meet the needs of hard keepers and performance horses. It contains 14% crude protein, 9% crude fat, and 24% NSC.
SafeChoice Perform Textured (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
NutritionNutrition
Nutrena SafeChoice Perform Textured is a high-fat high-calorie feed. It is intended for horses with higher energy requirements, including performance horses and hard keepers.
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.
SafeChoice Special Care (Nutrena)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
SafeChoice Special Care by Nutrena is a controlled starch formula intended for horses with metabolic concerns and easy keepers. It is a corn-free feed that contains a maximum of 7% dietary starch and 3% sugar.
Salute (Dunstan)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
Salute by Dunstan is a high energy, complete feed formulated for working horses. It utilizes a combination of highly palatable energy sources to meet the energy demands of race horses.
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.
Select Alfalfa (Select The Best)
Amino AcidAmino Acid
Mineral BalanceMineral Balance
VitaminsVitamins
YeastYeast
Select Alfalfa by Select The Best is a pelleted supplement ration balancer that intends to provide the vitamins, minerals, amino acids, and digestive support to balance diets mainly comprised of alfalfa hay.
Select Grass (Select The Best)
DigestionDigestion
Mineral BalanceMineral Balance
VitaminsVitamins
YeastYeast
Select Grass by Select The Best is a pelleted ration balancer that intends to provide the vitamins, minerals, amino acids, and digestive support to balance diets mainly comprised of grass.
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 (Running Horse Elite Equine Nutrition)
DigestionDigestion
Feed EfficiencyFeed Efficiency
SeniorSenior
Weight IssuesWeight Issues
Running Horse Nutrition Senior is a highly digestible feed providing 14% protein, vegetable fat, and micro-nutrients. This feed targets older horses to help them maintain their body condition.
Senior (Sollio Agriculture)
HealthHealth
ImmunityImmunity
NutritionNutrition
SeniorSenior
Senior from Sollio Agriculture is a complete pelleted feed intended for senior horses. This feed is intended to provide energy and essential amino acids for aging horses.
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.

Related Ingredients

Is Your Horse's Diet Missing Anything?

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