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Ingredient

L-Lysine

L-Lysine is an essential amino acid that plays a vital role in protein synthesis, tissue repair, and growth in horses. It is one of the key building blocks of proteins and is necessary for the production of enzymes, hormones, and antibodies. Since horses cannot synthesize L-Lysine on their own, it must be obtained through their diet.

In equine nutrition, L-Lysine is often included in feed formulations and supplements to ensure adequate levels of this essential amino acid. It is particularly important for growing horses, lactating mares, and performance horses, as it supports muscle development, immune function, and overall health. Adequate L-Lysine intake is crucial for optimizing the nutritional balance of equine diets and ensuring proper growth and maintenance.

The following equine feeds, supplements and products contain L-Lysine as an ingredient.

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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.
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.
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.
Laminex (MVP)
AntioxidantAntioxidant
CirculationCirculation
JointsJoints
Metabolic SyndromeMetabolic Syndrome
Laminex by MVP is a pelleted supplement meant to help support healthy joint function, blood sugar levels, and hoof growth. It contains MSM, magnesium, biotin, and devil's claw.
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.
Leading Edge – Pelleted (Brooks)
AntioxidantAntioxidant
Competition HorsesCompetition Horses
PerformancePerformance
PrebioticPrebiotic
Leading Edge Pelleted by Brooks is a feed intended for horses in heavy training and competition. It contains 14% protein, 8% fat, and 16% fiber.
Leading Edge – Textured (Brooks)
AntioxidantAntioxidant
Competition HorsesCompetition Horses
PerformancePerformance
PrebioticPrebiotic
Leading Edge - Textured by Brooks is a feed and is intended for horses in competition or training.
Leading Edge (Manna Pro)
Complete FeedComplete Feed
FoalFoal
GrowthGrowth
ProteinProtein
Leading Edge by Manna Pro is an equine feed intended for all classes of horses. It contains 14% crude protein and 6% crude fat from sources such as wheat middlings, corn, soy hulls, and vegetable oil.
Legacy 16% Mare & Foal Ration (CO-OP)
FoalFoal
GrowthGrowth
LactationLactation
MareMare
Legacy 16% Mare & Foal Ration is a higher-protein feed intended for broodmares and growing foals. These horses benefit from higher levels of amino acids in the diet.
Legend (Barastoc)
Gut HealthGut Health
HealthHealth
NutrientsNutrients
Weight IssuesWeight Issues
Legend from Barastoc is a feed that is oat free. It is low in starch and it can contribute to weight gain and body condition. It is meant to help with gut health and provides minerals and vitamins.
Life Time Balancer (Capstone Horse Feed)
HealthHealth
NutrientsNutrients
ProteinProtein
Ration BalancerRation Balancer
Life Time Balancer by Capstone Horse Feed is a pelleted balancer supplement intended for all horse types.
Limited (Bluebonnet Feeds)
HealthHealth
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Ration BalancerRation Balancer
Limited by Bluebonnet is a ration balancer containing no soy, corn, wheat, oats, molasses, beet pulp, flax or cottonseed. It is intended for sensitive or allergy-prone horses.
Lite (Triple Crown)
FiberFiber
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Weight IssuesWeight Issues
Triple Crown Lite is a palatable, low-calorie, high-fiber pellet fortified with vitamins and minerals. This feed is intended for horses or ponies prone to laminitis and insulin resistance and tends to gain weight easily. This feed has an NSC of 9.5%.
Lite Ration Balancer (Lifeline)
BroodmareBroodmare
GrowthGrowth
LactationLactation
NutrientsNutrients
Lite Ration Balancer by Lifeline is a pelleted supplemented intended for growing horses and pregnant/lactating broodmares.
LMF California Complete (LMF Horse Feeds)
Complete FeedComplete Feed
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
LMF California Complete is a pelleted feed formulated as an alternative to diets containing pure alfalfa hay. It contains highly digestible fibre from beet pulp, alfalfa hay and soyhulls.
LMF Development – Northwest Formula A (LMF Horse Feeds)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
PerformancePerformance
LMF Development by LMF Horse Feeds is a textured, grain-based feed intended for horses in the western U.S. Formula A is designed to complement alfalfa-based forages.
LMF Development – Northwest Formula G (LMF Horse Feeds)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
PerformancePerformance
LMF Development by LMF Horse Feeds is a textured, grain-based feed intended for horses in the western U.S. Formula G is designed to complement grass-based forages.
LMF Development – Southwest Formula A (LMF Horse Feeds)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
PerformancePerformance
LMF Development by LMF Horse Feeds is a textured, grain-based feed intended for horses in the western U.S. Formula A is designed to complement alfalfa-based forages.
LMF Development – Southwest Formula G (LMF Horse Feeds)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
PerformancePerformance
LMF Development by LMF Horse Feeds is a textured, grain-based feed intended for horses in the western U.S. Formula G is designed to complement grass-based forages.
LMF Gold (LMF Horse Feed)
EnergyEnergy
ExerciseExercise
Gut HealthGut Health
NutritionNutrition
LMF Gold is a high calorie textured feed intended to support performance and weight gain in horses. Additionally it provides vitamins, minerals and fibre sources.
LMF Pro-Pellet (LMF Horse Feeds)
Complete FeedComplete Feed
JointsJoints
Mineral BalanceMineral Balance
VitaminsVitamins
LMF Pro-Pellet is a textured high-fiber feed for performance horses in moderate to heavy work. It contains 12% crude protein, and 3.3% fat, along with bio-available trace minerals, organic selenium, live yeast culture, and glucosamine.
LMF Senior (LMF Horse Feeds)
Complete FeedComplete Feed
FiberFiber
JointsJoints
SeniorSenior
LMF Senior is a pelleted complete feed for aged horses. It contains ingredients to support joint and gut health.
LMF Senior Low Carb (LMF Horse Feeds)
Complete FeedComplete Feed
Grain FreeGrain Free
JointsJoints
SeniorSenior
LMF Senior Low Carb feed is a soybean- and alfalfa-based feed for mature horses. It contains 13% crude protein, 8% fat, and 8% NSC.
LMF Showtime (LMF Horse Feeds)
CalmingCalming
Competition HorsesCompetition Horses
NutritionNutrition
Skin + HairSkin + Hair
LMF Showtime by LMF Horse Feeds is a textured feed intended to support body and coat condition in show horses and ponies.
LMF Super Supplement G NW (LMF Horse Feeds)
Mineral BalanceMineral Balance
Omega 3-6-9Omega 3-6-9
ProteinProtein
VitaminsVitamins
LMF Super Supplement G NW is a ration balancer that contains the essential vitamins and minerals to complement a forage diet. It is a low intake balancer that includes nutrient sources such as soybean meal, barley, and wheat.
LMF Super Supplement NW A (LMF Horse Feeds)
Easy KeeperEasy Keeper
HealthHealth
NutritionNutrition
Ration BalancerRation Balancer
LMF Super Supplement is a ration balancer from LMF Horse Feeds. This feed is intended for easy keepers, and contains vitamins and minerals to balance a forage based diet.
LMF Taco (LMF Horse Feeds)
Complete FeedComplete Feed
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
LMF Taco is a complete feed intended for horses of all classes. It contains 12% crude protein and 2.5% fat from timothy and alfalfa hay, corn and oats. This feed is made with cane molasses to encourage palatability.
Lone Star Trace MS-051120 (HorseTech)
Mineral BalanceMineral Balance
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Lone Star Trace MS-051120 is a custom vitamin and mineral supplement for horses. It contains milled flaxseed, added amino acids and organic trace minerals.
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.
Low GI Cube (Barastoc)
EnergyEnergy
GrowthGrowth
NutrientsNutrients
PerformancePerformance
Barastoc's Low GI Cube is a cubed feed that is low in sugar. It contains energy that can be released slowly and can be given to performance horses, breeding horses, or growing horses.
Low Non-Structural Carbohydrate Feed NW (LMF Horse Feeds)
Complete FeedComplete Feed
FiberFiber
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Low NSC Feed by LMF Horse Feeds contains 8% NSC (starch and sugar). It is a pelleted feed that can be fed as the total diet.
Low Non-Structural Carbohydrate Feed SW (LMF Horse Feeds)
Complete FeedComplete Feed
FiberFiber
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Low NSC Feed by LMF Horse Feeds contains 8% NSC (starch and sugar). It is a pelleted feed that can be fed as the total diet.
Low Starch (Triple Crown)
Complete FeedComplete Feed
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
SeniorSenior
Triple Crown Low Starch is a pelleted feed containing a lower level of 13.5% NSC. It has no whole grains, molasses or alfalfa meal which can cause excitability in horses.
Low Starch Omega Plus (Equine Advantage)
Caloric EnergyCaloric Energy
FatFat
FiberFiber
NutritionNutrition
Low Starch Omega Plus is intended for horses that need moderate to significant calories added to their diet. This diet is suitable for horses with Insulin Resistance, Cushing's Disease, and PSSM due to the low NCS.
LQ-Performance (DAC)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
LQ-Performance by DAC is a liquid vitamin and mineral supplement. It is formulated with chelated trace minerals, selenium, and chromium.
Lysine Hydrochloride (HCl) – 98.5%
Amino AcidAmino Acid
Coat QualityCoat Quality
Hoof HealthHoof Health
MuscleMuscle
Lysine Hydrochloride is a form of lysine supplement that provides approximately 80% L-Lysine. This essential amino acid is considered the first limiting amino acid in the equine diet.
M V Balancer Lite (Matrix)
FiberFiber
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
M V Balancer Lite by Matrix is a lower protein ration balancer that supplies 10% protein. It is designed for horses that don't require high protein in their diet.
M V Balancer Original (Matrix)
NutrientsNutrients
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
M V Balancer Original by Matrix is a pelleted ration balancer with a high protein content of 20%. It supplies a concentrated level of vitamins and minerals.
M30 (McCauley’s)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
PerformancePerformance
M30 by McCauley's is a supplement intended to balance the diet of all horse types. It contains soybean meal, wheat bran, and alfalfa meal.
MagCalm (Equestrizone)
CalmingCalming
EnergyEnergy
IngredientIngredient
PerformancePerformance
MagCalm from Equestrizone is a natural equine calming supplement with equal parts magnesium and potassium to help ease horses who become anxious or over-excited. It can also support stamina and energy levels.
Magic Mineral (Farrier’s Magic)
Coat QualityCoat Quality
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Magic Mineral is a supplement intended for equines of all ages. The supplement helps support healthy hooves and coats.
Maintenance Horse Ration (Hoffman’s Horse Products)
FiberFiber
HealthHealth
Low NSC FeedsLow NSC Feeds
Ration BalancerRation Balancer
Hoffman's Maintenance Horse Ration is a pelleted feed with lower energy density for horses at maintenance or in light work. Calories are provided by soybean hulls, stabilized rice bran, wheat mill run, malt sprouts and oat hulls.
Mare & Foal (Matrix)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Mare & Foal by Matrix is a pelleted complete feed formulated for broodmares and growing foals. It provides a high level of protein (16%) and moderate fat (5%) to meet the demands of gestation and growth.
Mare & Foal (Running Horse Elite Equine Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Running Horse Elite Mare & Foal is a high-fat feed that contains 16% protein and 9% fat from sources such as wheat middlings, rice bran, and soybean oil. This feed is targeted at pregnant, lactating, and growing horses.
Mare & Foal (Seminole)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Seminole Mare & Foal™ is a textured feed designed for foals, weanlings, and late-gestation or lactating broodmares. This oat-based feed contains corn, digestible fibre, added lysine, and chelated trace minerals.
Mare Cube (Excel Equine Feeds)
BroodmareBroodmare
GrowthGrowth
NutrientsNutrients
NutritionNutrition
Mare Cube by Excel Equine Feeds is a cubed feed fortified with protein, amino acids, vitamins and minerals. It is intended for broodmares and growing horses.
Mare Support (Pureform)
CalmingCalming
MareMare
Mineral BalanceMineral Balance
VitaminsVitamins
Mare Support is a vitamin/mineral supplement formulated for horses on a grass-based diet. It contains glucosamine and MSM for joint health, B-vitamins, organic microminerals and vitex agnus-castus (chasteberry).
Mare-Foal II-P (Pellets) (MVP)
BroodmareBroodmare
FoalFoal
Mineral BalanceMineral Balance
VitaminsVitamins
Mare-Foal II-P by MVP is a pelleted supplement designed for broodmares and foals. It contains vitamins, minerals, probiotics and an elevated protein level that intend to support proper development.
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.
Mare’s Milk Replacer (Baileys Horse Feeds)
FoalFoal
GrowthGrowth
NutritionNutrition
ProteinProtein
Mare's Milk Replacer from Baileys Horse Feeds is intended for orphaned or rejected foals after receiving colostrum. This feed contains milk protein, vitamins, and minerals vital for the foal's optimum growth.
Mare’s Match® Foal Transition Pellets (Land O Lakes)
FatFat
FoalFoal
GrowthGrowth
ProteinProtein
Mare's Match® Foal Transition Pellets is a milk-based feed targeted to weanlings transitioning to solid feed. It is a source of protein, fat, vitamins and minerals.
MareKare (AniMed)
BroodmareBroodmare
LactationLactation
NutrientsNutrients
VitaminsVitamins
MareKare from AniMed is a made for pregnant and lactating mares. This vitamin and mineral supplement is meant to provide extra nutrients and help maintain body condition during breeding, foaling, and lactating.
Mass-No-Sass (Daily Dose Equine)
DigestionDigestion
FiberFiber
ForageForage
Weight IssuesWeight Issues
Mass-No-Sass by Daily Dose Equine is a hay-based feed with high fat and fibre. It is intended to be digested in the foregut, allowing a horse to maintain focus and calm during training.

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