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B Vitamins - Feed Ingredient

B vitamins refer to a group of water-soluble vitamins that play critical roles in energy metabolism, red blood cell production, nervous system function, and overall cellular activity. In horses, key B vitamins include thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folic acid (B9), and cobalamin (B12). Each B vitamin serves a unique biological function but often works synergistically with others in metabolic processes.

Horses typically synthesize most B vitamins through microbial fermentation in the hindgut, especially when consuming a forage-rich diet. However, in certain situations—such as high-intensity exercise, illness, antibiotic use, or limited forage intake—B vitamin synthesis or absorption may be compromised. Supplementation of B vitamins in commercial feeds or as separate additives may help support performance, recovery, hoof health (notably biotin), and appetite. Because B vitamins are water-soluble, excess amounts are generally excreted in urine, minimizing the risk of toxicity when fed appropriately.

The following equine feeds, supplements and products contain B Vitamins 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.
B-Vitamin Pak (Mad Barn)
CalmingCalming
ExerciseExercise
StressStress
VitaminsVitamins
B-Vitamin Pak is a comprehensive B-vitamin supplement in powder form. It provides a balanced profile of the B-Complex vitamins and may be beneficial for horses during times of heavy work, stress, or illness.
Biotin (Mad Barn)
Hoof HealthHoof Health
IngredientIngredient
MuscleMuscle
NutritionNutrition
Biotin Powder from Mad Barn provides 20 mg of biotin per serving support hoof growth and quality, as well as skin and coat health. Biotin is a B vitamin which supports strong hooves and connective tissues such as tendons. Biotin is highly palatable and easy to feed.
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.
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.
Stabul 1 (Anderson Feed Co)
Easy KeeperEasy Keeper
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Weight IssuesWeight Issues
Stabul™ 1 is a low-starch (5%) and low-sugar (5%) feed intended for easy keepers and horses, ponies and mules with metabolic concerns. It is corn, oats and molasses-free.
Stabul 1 Plus (Anderson Feed Co)
ExerciseExercise
Metabolic SyndromeMetabolic Syndrome
NutritionNutrition
Weight IssuesWeight Issues
Stabul™ 1 Plus is a low-starch (5%) and low-sugar (5%) feed intended for horses that are in work or hard keepers. It is designed for horses with metabolic concerns to provide higher energy density.
Stake Horse (Woody’s Horse Nutrition)
Competition HorsesCompetition Horses
DigestionDigestion
FiberFiber
PerformancePerformance
Stake Horse by Woody’s Horse Nutrition is a beet-based 9% fat and 13% protein feed intended for racehorses. It is made with molasses, oats, barley, and beet pulp. This horse is intended for racehorses or performance horses.
Stallion Max (Hallway)
Caloric EnergyCaloric Energy
NutritionNutrition
Omega 3-6-9Omega 3-6-9
StallionStallion
Stallion Max from Hallway is a fortified high-fat, high-fibre feed formulated for stallions. This feed has added omega-3 fatty acids. Stallion Max contains 14% protein, 6% fat, and 12% fibre. It is recommended to start feeding 'Stallion Diets' 60 to 90 days before breeding season begins.
Staminoats (Hallway)
BroodmareBroodmare
GrowthGrowth
LactationLactation
NutritionNutrition
Staminoats from Hallway is a cubed feed fortified with Stamm 30, formulated for broodmares and young growing horses. This feed provides 14% protein, 3% fat, and 11% fibre.
Stamm 30 (Hallway)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
Stamm 30 from Hallway is a vitamin and mineral pellet formulated for growing, reproducing, recreational and performance horses. This can be fed alone to easy keepers, or used to top dress feed for horses not getting the full feeding rate of concentrate feeds. Stamm 30 is used in other Hallway feeds as the source of vitamins and minerals.
Starch Wise (ProElite)
Gut HealthGut Health
NutritionNutrition
PerformancePerformance
SeniorSenior
ProElite Starch Wise is a pelleted horse feed with a maximum 14.5% NSC. It is formulated with moderate levels of starch and sugar for mature show and performance horses.
Steady Energy Formula (Bartlett Milling) [Discontinued]
EnergyEnergy
FatFat
Grain FreeGrain Free
PerformancePerformance
Bartlett Steady Energy Formula is a pelleted feed intended for mature horses that require lower levels of energy in their diet. It provides 12% protein and 6% fat.
Step (Vita Vet Labs)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Step by Vita Vet Labs is a supplement intended to support healthy hoof growth in horses.
Step 1 Start Right (Trouw Nutrition)
Complete FeedComplete Feed
FoalFoal
GrowthGrowth
LactationLactation
Step 1 Start Right is an extruded feed formulated to meet the nutritional demands of lactating broodmares, foals and weanlings. It can be fed to growing horses up to one year of age.
Step 2 Peak Performance – Sport (Trouw Nutrition)
Complete FeedComplete Feed
FatFat
PerformancePerformance
Weight IssuesWeight Issues
Step 2 Peak Performance - Sport by Trouw is an extruded, high-fat feed formulated to meet the energy demands of horses in heavy work, stallions, growing horses, and hard keepers. It provides 14% protein and 10% fat from vegetable oils.
Step 2 Peak Sweet (Trouw Nutrition) [DISCONTINUED]
Complete FeedComplete Feed
ExerciseExercise
FlavorFlavor
GrowthGrowth
Step 2 Peak Sweet is a textured, high-energy feed for horses in heavy work, stallions, growing horses, and hard keepers. It contains 14% protein and 10% fat.
Step 3 Classic Sweet (Trouw Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FlavorFlavor
Weight IssuesWeight Issues
Step 3 Classic Sweet is a textured sweet feed for mature horses in light to moderate work. It contains whole oats and added sugars to improve palatability.
Step 3 GenAPro (Trouw)
Complete FeedComplete Feed
FiberFiber
Hay StretcherHay Stretcher
Low NSC FeedsLow NSC Feeds
Trouw GenAPro (GAP) is an alfalfa-based, high fibre and low NSC feed with less than 10% sugar and starch content. GenAPro is designed as a partial or total hay replacer when quality forage is limited.
Step 4 Complete – Rocky Mountain Crunch (Trouw Nutrition) [DISCONTINUED]
DigestionDigestion
FiberFiber
Hay StretcherHay Stretcher
Ration BalancerRation Balancer
Step 4 Complete Rocky Mountain Crunch is an extruded, high-fibre feed used to partially replace forage. The kibbles contain 14% protein as well as essential vitamins and minerals.
Step 4 Low Sugar Lite (Trouw Nutrition)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
Low NSC FeedsLow NSC Feeds
Step 4 Low Sugar Lite by Trouw Nutrition is a high-fibre pelleted feed intended for horses who are prone to founder, sugar sensitivities, insulin resistance and metabolic disorders.
Step 5 Top Up Mineral (Trouw Nutrition)
HealthHealth
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
VitaminsVitamins
Step 5 Top Up Mineral by Trouw Nutrition is a loose mineral supplement intended for horses who need additional vitamins and minerals in their diet.
Step 6 Senior (Trouw Nutrition)
Complete FeedComplete Feed
DentalDental
SeniorSenior
Weight IssuesWeight Issues
Step 6 Senior is a pelleted and extruded feed intended for senior horses and hard keepers. It contains 5% fat, 16% protein and can be given to senior horses with dental issues.
Step 7 Top Up Supplement (Trouw Nutrition)
Easy KeeperEasy Keeper
Gut HealthGut Health
Ration BalancerRation Balancer
VitaminsVitamins
Step 7 Top Up Supplement by Trouw Nutrition is a ration balancer intended to be used when horses are not consuming a complete feed, such as corn, oats or barley. It can be used for over-conditioned horses, horses on pasture and horses with low energy requirements.
Step 8 High Fat (Trouw Nutrition)
Complete FeedComplete Feed
FatFat
PerformancePerformance
Weight IssuesWeight Issues
Step 8 High Fat - Cool Energy by Trouw Nutrition is a pelleted feed intended for performance horses or horses that required fat-sourced energy.
Step Right Horse Mineral (Trouw Nutrition) [DISCONTINUED]
Gut HealthGut Health
HealthHealth
Ration BalancerRation Balancer
VitaminsVitamins
Step Right Horse Mineral (formerly Step 7b Pro Equine Supplement) is a concentrated mineral and vitamin supplement for horses in a loose powdered format. It is intended for horses that are not consuming complete feed, horses on pasture, or easy keepers.
Stock Builder (Star Milling Co)
ExerciseExercise
GrowthGrowth
MuscleMuscle
ProteinProtein
Stock Builder by Star Milling Co is a high protein supplement formulated with ingredients such as soybean meal, ground cereal grains and whey. It contains a minimum of 25% protein and no added minerals and vitamins.
STP (Cox Vet Lab)
FlavorFlavor
HerbHerb
RecoveryRecovery
VitaminsVitamins
STP is a liquid supplement intended to help horses during recovery after exercise. It can also help in inflammatory response, all while being gentle on the gut.
STP Pellets (Cox Vet Lab)
Mineral BalanceMineral Balance
RecoveryRecovery
StressStress
VitaminsVitamins
STP is a pelleted supplement intended to help horses during recovery after exercise. It can also help in inflammatory response, all while being gentle on the gut.
Strategy® Professional Formula GX (Purina Mills)
Complete FeedComplete Feed
ExerciseExercise
GrowthGrowth
HealthHealth
Strategy Professional Formula GX is a pelleted concentrate horse feed for all life stages. It provides 14% crude protein, 6% crude fat and 12.5% fiber.
Stretch Horse Pellets (West Feeds)
Caloric EnergyCaloric Energy
FatFat
GrainsGrains
ProteinProtein
Stretch Horse Pellets by West Feeds is a higher energy feed containing a minimum of 14% protein and a minimum of 6% fat content. This feed includes ingredients such as grain products, plant protein, and forage products.
Strucomix Original (Cavalor)
Complete FeedComplete Feed
FiberFiber
HerbHerb
Organic Trace MineralsOrganic Trace Minerals
Strucomix Original by Cavalor is an oat-free, corn-free and molasses-free feed for horses in maintenance to moderate work. A textured and balanced feed for horses rich in fiber and herbs.
Strucomix Senior (Cavalor)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
SeniorSenior
Strucomix Senior by Cavalor is a high-fibre feed formulated with puffed and extruded grains to improve digestibility. It contains 14% protein that help support weight and muscle maintenance.
SU-PER Anti-Oxidant Powder (Gateway Products)
AntioxidantAntioxidant
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
SU-PER Anti-Oxidant Powder by Gateway Products is an anti-oxidant supplement anti-oxidant to support general health, energy production, and immune response for horses under stress or recovering from illness.
SU-PER Appetite Liquid (Gateway Products)
DigestionDigestion
Feed EfficiencyFeed Efficiency
VitaminsVitamins
Weight IssuesWeight Issues
SU-PER Appetite Liquid by Gateway Products is a supplement that supports a healthy appetite without the use of stimulants. This supplement contains vitamins B-1 and B-12, which can help increase appetite.
SU-PER B-1 Liquid (Gateway Products)
Competition HorsesCompetition Horses
HealthHealth
StressStress
VitaminsVitamins
SU-PER B-1 Liquid by Gateway Products is a vitamin supplement that aids in maintaining calmness and supporting balanced behaviour. It provides thiamine that sends nerve impulses, and a deficiency can cause horses to be unfocused, anxious, or hard to work with.
SU-PER B-1 Powder (Gateway Products)
Competition HorsesCompetition Horses
ExerciseExercise
StressStress
VitaminsVitamins
SU-PER B-1 Powder by Gateway Products is a vitamin supplement that aids in maintaining calmness and supporting balanced behaviour. It provides thiamine that sends nerve impulses, and a deficiency can cause horses to be unfocused, anxious, or hard to work with.
SU-PER B-12 Liquid (Gateway Products)
EnergyEnergy
PerformancePerformance
StaminaStamina
VitaminsVitamins
SU-PER B-12 Liquid by Gateway Products is a supplement designed to combat a lack of energy and stamina. It provides vitamin B-12 and folic acid, necessary for healthy red blood cell production.
SU-PER B-12 Powder (Gateway Products)
Blood CellsBlood Cells
CirculationCirculation
EnergyEnergy
VitaminsVitamins
SU-PER B-12 Powder by Gateway Products is a supplement designed to combat a lack of energy and stamina. It provides vitamin B-12 and folic acid, necessary for healthy red blood cell production.
SU-PER B-Plex Paste (Gateway Products)
EnergyEnergy
PerformancePerformance
StressStress
VitaminsVitamins
SU-PER B-Plex Paste by Gateway Products is a performance supplement to provide more energy, increased stamina, and improved focus. It contains all of the major B-Complex vitamins together in one supplement.
SU-PER B-Plex Powder (Gateway Products)
EnergyEnergy
StaminaStamina
StressStress
VitaminsVitamins
SU-PER B-Plex Powder by Gateway Products is a performance supplement to provide more energy, increased stamina, and improved focus. It contains all of the major B-Complex vitamins together in one supplement.
SU-PER Biotin Powder (Gateway Products)
FlavorFlavor
Hoof HealthHoof Health
Skin + HairSkin + Hair
VitaminsVitamins
SU-PER Biotin Powder by Gateway Products is a hoof supplement that supports proper growth and structural repair for cracked hooves and hoof walls. It contains 25mg of biotin per serving, which will help strengthen the hoof as it grows.
SU-PER Bug Away Powder (Gateway Products)
Coat QualityCoat Quality
HerbHerb
NutrientsNutrients
Skin + HairSkin + Hair
SU-PER Bug Away Powder by Gateway Products is a horse supplement that contains apple cider vinegar to deter biting insects, omega 3 fatty acids to help skin and coat health, and diatomaceous earth to help discourage insect breeding in manure.
SU-PER Cell Builder Liquid (Gateway Products)
Blood CellsBlood Cells
CirculationCirculation
HealthHealth
VitaminsVitamins
SU-PER Cell Builder Liquid by Gateway Products is a supplement to support stamina, endurance, and blood cell health. It is a high-iron supplement that supports normal red blood cell production and helps promote healthy cells with high hemoglobin content.
SU-PER Equi-Tinic Liquid (Gateway Products)
Blood CellsBlood Cells
CirculationCirculation
EnergyEnergy
NutrientsNutrients
SU-PER Equi-Tinic Liquid by Gateway Products is a liquid vitamin and mineral supplement that provides the essential building blocks for healthy red blood cells. This supplement helps with horses suffering from a lack of energy or stamina.
SU-PER Farrier’s Supplement Pellets (Gateway Products)
Amino AcidAmino Acid
Hoof HealthHoof Health
ProbioticProbiotic
VitaminsVitamins
SU-PER Farrier's Supplement Pellets by Gateway Products is a hoof supplement with 25mg of Biotin per serving. This supplement supports healthy hoof growth and structure.
SU-PER First Response Paste (Gateway Products)
DigestionDigestion
Gut HealthGut Health
PrebioticPrebiotic
YeastYeast
SU-PER First Response Paste by Gateway Products is a fast-acting gut supplement designed for immediate digestive support. This supplement contains concentrated prebiotics, yeast extract, and B-vitamins.
SU-PER Form Pellets (Gateway Products)
HealthHealth
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
SU-PER Form Pellets by Gateway Products is a vitamin and mineral supplement that provides all the necessary nutrients. This supplement also includes additional amino acids and electrolytes and is meant for horses of all life stages.
SU-PER Gain Weight (Gateway Products)
Amino AcidAmino Acid
Feed EfficiencyFeed Efficiency
MuscleMuscle
Weight IssuesWeight Issues
SU-PER Gain Weight by Gateway Products is a weight-gaining product designed for hard keepers. It contains coconut oil as its fat source, the essential amino acids for muscle retention, and probiotics to aid in nutrient absorption.
SU-PER GastroShield Powder (Gateway Products)
Gut HealthGut Health
NutrientsNutrients
ProbioticProbiotic
UlcersUlcers
SU-PER GastroShield Powder by Gateway Products is a gut supplement meant to soothe the stomach from gastric acid upset. This supplement is for horses with a history of gastric ulcers or those at risk of developing gastric issues.
SU-PER Hoof Powder (Gateway Products)
Amino AcidAmino Acid
Hoof HealthHoof Health
NutrientsNutrients
VitaminsVitamins
SU-PER Hoof Powder is a hoof supplement that contains 30 mg of biotin per serving to support optimal hoof growth and structure. This supplement is for maintenance use in the winter and when a hoof suffers damage.
SU-PER ImmunoBOOST Powder (Gateway Products)
AntioxidantAntioxidant
HerbHerb
ImmunityImmunity
NutrientsNutrients
SU-PER ImmunoBOOST Powder by Gateway Products is an immune supplement of anti-oxidants, vitamins and minerals, and herbal extracts. This supplement is for seniors, performance, and horses under consistent stress.
SU-PER Jug Paste (Gateway Products)
Amino AcidAmino Acid
EnergyEnergy
PerformancePerformance
VitaminsVitamins
SU-PER Jug Paste is an energy supplement meant to provide stamina, performance, and energy. This supplement offers vitamins and minerals, electrolytes, and amino acids to ensure proper nutrient levels before a race or restore balance.
SU-PER LaminAid Powder (Gateway Products)
Amino AcidAmino Acid
HerbHerb
Hoof HealthHoof Health
VitaminsVitamins
SU-PER LaminAid Powder by Gateway Products is a circulation supplement designed for horses suffering from laminitis/founder or at risk. This supplement helps to increase blood flow, support inflammatory responses, and provide nutrients to damaged tissues.
SU-PER Leanabolic Powder (Gateway Products)
ExerciseExercise
MuscleMuscle
PerformancePerformance
ToplineTopline
SU-PER Leanabolic Powder is a performance supplement to support exercising muscle. It contains essential amino acids to build and maintain lean muscle mass, Kre-Alkalyn to increase stamina and recovery, and vitamins and minerals to replenish lost nutrients.

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