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DL-Methionine - Feed Ingredient

Methionine is a sulfur-containing essential amino acid that plays a crucial role in protein synthesis, metabolism, and various physiological functions in horses. As an essential amino acid, it must be obtained from the diet since horses cannot synthesize it internally. Methionine is commonly included in equine feed formulations and supplements to support muscle development, hoof health, and overall protein utilization.

In equine nutrition, methionine serves as a precursor for other sulfur-containing compounds, such as cysteine and taurine, which are important for tissue repair, antioxidant function, and keratin formation. It is particularly relevant in hoof health due to its role in keratin synthesis, the primary structural protein in hooves and hair. While methionine is naturally present in forages and protein-rich feeds, supplementation may be necessary in diets that are low in high-quality protein sources.

The following equine feeds, supplements and products contain DL-Methionine 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.
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.
Dark Horse Nu-Image (Select The Best)
Coat QualityCoat Quality
Mineral BalanceMineral Balance
Omega 3-6-9Omega 3-6-9
VitaminsVitamins
Dark Horse Nu-Image by Select The Best is a supplement for black, bay and brown horses which contains omega-3, omega-6 and omega-9 fatty acids, amino acids, and essential B-vitamins, including biotin and pyridoxine.
Decade Sprint Extreme (Poulin Grain)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Mineral BalanceMineral Balance
VitaminsVitamins
Decade Sprint Extreme by Poulin Grain is a textured feed for performance horses and broodmares. It provides 13% protein, 8% fat and 10% fiber.
Diamond Balancer (Triple Crown)
Easy KeeperEasy Keeper
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
Diamond Balancer by Triple Crown is a grain-free pelleted balancer formulated for adult horses with metabolic concerns. It provides 14% protein, 3% fat, and 15% fiber (as fed).
Diamond Perform (Triple Crown)
AntioxidantAntioxidant
FatFat
Gut HealthGut Health
PerformancePerformance
Diamond Perform from Triple Crown is a pelleted feed that is high in fat and fiber. It is intended for performance horses and is meant to assist with gut health and immunity.
Diamond Senior (Triple Crown)
FatFat
FiberFiber
NutrientsNutrients
SeniorSenior
Diamond Senior by Triple Crown is a high-fat, high-fiber feed specifically formulated for senior horses. It includes beet pulp as a fermentable fiber source to support optimal calorie intake.
Diamond Smart Chopped Forage (Triple Crown)
ForageForage
HealthHealth
PerformancePerformance
SeniorSenior
Diamond Smart Chopped Forage by Triple Crown is an orchard and alfalfa hay blend intended to provide a complete diet for performance and mature horses. It's chopped forage format is designed to support easier chewing and swallowing.
Diamond Smart Cube (Triple Crown)
DentalDental
ForageForage
PerformancePerformance
SeniorSenior
Diamond Smart Cubes by Triple Crown is a cube containing beet pulp, timothy hay and orchard hay. It is intended for performance and mature horses.
Diamond Smart Pellet (Triple Crown)
ForageForage
HealthHealth
PerformancePerformance
SeniorSenior
Diamond Smart Pellet by Triple Crown is a Teff hay pellet fortified with vitamins and minerals. It is intended for performance and mature horses.
Direct Action Supplement (DAC)
Amino AcidAmino Acid
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Direct Action is a multivitamin and trace mineral concentrate for horses. This low feeding rate supplement is formulated to provide added vitamins, minerals, and amino acids required in the equine diet.
DJ (Platinum Performance)
JointsJoints
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Platinum Performance® DJ by Platinum Performance is a powdered vitamin and mineral supplement intended to support joint and digestive health. It contains ingredients such as flaxseed, rice bran, clay, yeast, and a blend of vitamins and minerals.
Double Play (Equi-lete)
Bone HealthBone Health
Gut HealthGut Health
ImmunityImmunity
PerformancePerformance
Double Play by Equi-lete is a vitamin and mineral supplement intended to support gastric health, performance, and the growth of bone and cartilage in performance horses.
Dynamite (Dynamite)
HealthHealth
Hoof HealthHoof Health
NutrientsNutrients
VitaminsVitamins
Dynamite by Dynamite is a supplement containing high amounts of selenium (44.4 ppm), it is intended to support overall health in all performance horses.
Dynasty Pro 14/6 Pellet (Blue Seal)-[Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
GrowthGrowth
NutritionNutrition
Dynasty Pro 14/6 Pellet was a pelleted feed containing 6% fat, 14% protein, fermentable fiber, nutrients, and yeast. This was feed targeted horses of all ages and supported growth, performance, breeding, and lactation.
Dynasty Senior 14/6 Pellet (Kent Equine) – [Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FiberFiber
SeniorSenior
Dynasty Senior Pellet was high in fiber and provided added fat to maintain body condition in mature and senior horses. This feed contained a blend of vitamins and minerals, yeast cultures, and protein.
Dynasty Show 12/6 Pellet (Kent Equine) – [Discontinued]
Complete FeedComplete Feed
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
Dynasty Show 12/6 Pellet was a horse feed designed to meet the energy needs of active adult horses. This feed provided 12% protein, 6% fat, digestible fiber, vitamins, minerals, essential amino acids, antioxidants, and yeast cultures.
Dynasty XT Pro 14/10 Textured Horse Feed (Blue Seal) – [Discontinued]
Complete FeedComplete Feed
FiberFiber
Low NSC FeedsLow NSC Feeds
MuscleMuscle
Blue Seal Dynasty XT Pro 14/10 is a textured horse feed made with shredded beet pulp. It provides 14% protein to support growing, performance and breeding horses.
E-TEC Fibre-Max (Poulin Grain)
FatFat
FiberFiber
PerformancePerformance
ToplineTopline
E-TEC® Fibre-Max is a high fat (14%) and high fibre (20%) feed for performance horses that require higher calorie intakes. It provides 9.3% sugar and 7.4% starch for a total NSC of 16.7%.
E-TEC One (Poulin Grain)
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
YeastYeast
E-TEC One by Poulin Grain is a grain-free feed intended for all classes of horses and ponies. It provides 14% protein, 8% fat, and 18% fiber.
E-TEC Senior Low Carb (Poulin Grain)
FiberFiber
NutritionNutrition
SeniorSenior
Weight IssuesWeight Issues
E-TEC Senior Low Carb by Poulin Grain is a pelleted, grain- and molasses-free feed intended for senior horses that need to avoid sugars and starches. It contains 9.3% starch and 5% sugar.
E-TEC Senior Low Carb Complete (Poulin Grain)
DigestionDigestion
Grain FreeGrain Free
HealthHealth
SeniorSenior
E-TEC Senior Low Carb Complete from Poulin Grain is a senior feed that is grain and molasses free. It is meant for horses with problems chewing or hard keepers.
Easy Keeper (Woody’s Horse Nutrition)
Easy KeeperEasy Keeper
FiberFiber
MetabolismMetabolism
Weight IssuesWeight Issues
Woody’s Easy Keeper is a complete pelleted feed with lower energy density intended for horses at maintenance or horses that need to lose weight. It contains 10.5% NSC and 5% fat.
Element (Equis Feed)
Caloric EnergyCaloric Energy
GrainsGrains
Mineral BalanceMineral Balance
VitaminsVitamins
Element by Equis Feeds is a high-protein and moderate-fat horse feed that has 15.6% NSC. It contains Zinpro®4-Plex EQ performance trace minerals, prebiotic fibre, beet pulp, and soybean hulls.
Elements (ProElite)
Amino AcidAmino Acid
HealthHealth
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Elements by Pro Elite is a powdered supplement that provides essential vitamins, minerals, and amino acids for horses on a forage-only diet.
Elite Performance (Equine Advantage)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Competition HorsesCompetition Horses
PerformancePerformance
Elite Performance by Equine Advantage is designed for performance horses. This textured feed provides energy from starch and fat sources, with higher levels of biotin and Lysine.
Empower® Topline Balance® Ration Balancer (Nutrena)
Amino AcidAmino Acid
Grain FreeGrain Free
Ration BalancerRation Balancer
ToplineTopline
Nutrena Empower® Topline Balance® is a concentrated ration balancer to support topline and provide common nutrients lacking in forage. It contains 30% crude protein with added limiting amino acids.
Eq-Well (Arenus Animal Health)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
NutritionNutrition
Eq-Well by Arenus Animal Health is an equine vitamin and mineral balancer. It is a granular supplement intended for horses of all ages and work levels.
Eqceed 14 (Tucker Milling)
Complete FeedComplete Feed
FiberFiber
HealthHealth
NutritionNutrition
Eqceed 14 by Tucker Milling is a pelleted complete feed that contains 8% fat. It is formulated for working and maintenance horses and is marketed as a low starch feed.
Eqceed Ultra Senior (Tucker Milling)
Complete FeedComplete Feed
Gut HealthGut Health
Metabolic SyndromeMetabolic Syndrome
SeniorSenior
Eqceed Ultra Senior by Tucker Milling is a textured, high-fat, low-starch feed formulated specifically for senior horses. It includes shredded beet pulp and Lactobacillus, which supports gut health, and it can served as a complete replacement for hay or pasture.
Equalizer (Seminole)
Amino AcidAmino Acid
Competition HorsesCompetition Horses
Mineral BalanceMineral Balance
VitaminsVitamins
Seminole Equalizer is a high-protein pelleted ration balancer. It contains supplemental amino acids, a blend of organic and inorganic minerals, and added vitamins.
Equerry’s Choice (Equerry’s Horse)
DigestionDigestion
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Equerry's Choice is a micro-encapsulated blend of probiotics and digestive enzymes. It also contains minerals and vitamins including organic selenium. This supplement is recommended for all horses and ponies at any work level.
Equerry’s Plus
DigestionDigestion
Mineral BalanceMineral Balance
VitaminsVitamins
YeastYeast
Equerry's Plus is a horse supplement that provides microencapsulated probiotics and digestive enzymes. This product contains live yeast culture, chelated minerals, and vitamins. Equerry's Plus is intended for all horses and ponies.
Equi-Bone Pellets (TLC Animal Nutrition)
Bone HealthBone Health
JointsJoints
NutrientsNutrients
RecoveryRecovery
Equi-Bone by TLC Animal Nutrition is a pelleted supplement intended to support bone health in all horse types.
Equi-Bone Powder (TLC Animal Nutrition)
Bone HealthBone Health
JointsJoints
NutrientsNutrients
RecoveryRecovery
Equi-Bone Powder by TLC Animal Nutrition is a powdered supplement intended to support bone health in all horse types.
Equi-Cal Pellets (Lifeline Premium Horse Feeds)
CalmingCalming
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Grain FreeGrain Free
Lifeline Equi Cal Horse Feed is a high calorie ration intended for performance horses with no molasses or grain. It is formulated with 12% fat, added amino acids including lysine, and yeast cultures.
Equi-Hoof Complex (Uckele)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Uckele Equi-Hoof Complex is a vitamin, mineral and amino acid supplement intended to support hoof health for horses. This supplement provides 20 mg of biotin per 15 g serving.
Equi-Min Bits (Practical Equine Supplements)
FlavorFlavor
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
YeastYeast
Equi-Min Bits from Practical Equine Supplements is a vitamin and mineral pelleted supplement. It contains yeast cultures, organic trace minerals and is apple flavored.
EQUI-PRO East Coast Race (Poulin Grain)
GrainsGrains
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
EQUI-PRO East Coast Race by Poulin Grain is a textured feed intended for race horses. This feed provides high energy density from oats, beet pulp, corn, and molasses. It contains 13% protein, 8% fat, and 12% fiber.
EQUI-PRO Mare & Foal (Poulin Grain)
FoalFoal
GrowthGrowth
LactationLactation
MareMare
EQUI-PRO Mare & Foal by Poulin Grain is a textured feed intended for broodmares and growing horses. It provides 15% protein, 6% fat, and 10% fiber.
EQUI-PRO PerforMAX (Poulin Grain)
Caloric EnergyCaloric Energy
GrainsGrains
VitaminsVitamins
Weight IssuesWeight Issues
EQUI-PRO PerforMAX by Poulin Grain is a textured feed intended for performance horses requiring high energy density. It contains 12% protein, 12% fat and 12% fiber.
EQUI-PRO ProMax (Poulin Grain)
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Weight IssuesWeight Issues
EQUI-PRO ProMax by Poulin Grain is a pelleted feed formulated for performance horses and hard-keepers. It provides a higher energy density and contains 12% protein, 12% fat and 12% fiber.
Equi-Shine (Doctors Choice Supplements)
Mineral BalanceMineral Balance
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
Equi-Shine Pellet is a ration balancer that covers nutrient gaps in the equine diet and supports coat and hoof quality. It provides vitamins, amino acids, and a blend of organic and inorganic trace minerals.
Equi-Shine Granular (Doctor’s Choice Supplements)
HealthHealth
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
Equi-Shine Granular is a ration balancer intended to provide essential vitamins and minerals that could be limited in pasture and forage. It is designed for horses and ponies of all ages and work levels.
EquiBalance (Sollio Agriculture)
Amino AcidAmino Acid
HealthHealth
Low NSC FeedsLow NSC Feeds
VitaminsVitamins
EquiBalance is a concentrated pelleted vitamin, mineral and amino acid supplement for horses. EquiBalance is intended for horses who are receiving a complete feed. This supplement is intended for horses with metabolic disorders.
Equilene Complete (Bluebonnet Feeds)
BroodmareBroodmare
Complete FeedComplete Feed
Gut HealthGut Health
PerformancePerformance
Equilene Complete from Bluebonnet is a feed that is meant to be used as a forage replacer, designed for horses at all life stages. This feed provides 10% starch, and 4% sugar.
Equilene Pelleted (Bluebonnet Feeds)
Gut HealthGut Health
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
Equilene Pelleted from Bluebonnet is a feed intended for horses at all life stages, including breeding, and performance horses. This feed contains 11% starch, 5% sugars, and uses a mix of organic and inorganic trace minerals.
Equilene Pro Care (Bluebonnet Feeds)
FiberFiber
Gut HealthGut Health
Mineral BalanceMineral Balance
VitaminsVitamins
Equilene Pro Care from Bluebonnet Feeds is a beet pulp-based complete feed formulated to support digestive health. It is a low starch formula with 5.5% starch and 8% sugar. It contains added calcium, butyric acid and zinc for digestive support.
Equilene Textured (Bluebonnet Feeds)
Caloric EnergyCaloric Energy
GrainsGrains
Mineral BalanceMineral Balance
VitaminsVitamins
Equilene Textured feed from Bluebonnet Feeds is a complete feed for growth, performance, breeding and horses at maintenance. It contains molasses and vegetable oil as added sources of energy.
Equilene Track Master Ultra Fat (Bluebonnet Feeds)
Caloric EnergyCaloric Energy
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Equilene Track Master Ultra Fat from Bluebonnet Feeds is a high-energy textured feed intended for performance horses. This high-NSC feed contains 30% starch, and 11% sugars,
Equilibrium Legend XT (Purina)
BroodmareBroodmare
FatFat
FiberFiber
PerformancePerformance
Equilibrium Legend XT is a high caloric extruded feed made for performance athletes and broodmares. It contains 10% fat and 10% fiber.
Equilibrium Maternity XT (Purina)
BroodmareBroodmare
Complete FeedComplete Feed
GrowthGrowth
LactationLactation
Equilibrium Maternity XT is an extruded feed formulated for gestating mares as well as nursing and growing foals. It provides high energy and protein (16.5%) from ingredients such as soybean meal, flax, wheat, soybean oil and molasses.

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