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Saccharomyces cerevisiae - Feed Ingredient

Saccharomyces cerevisiae is a species of yeast commonly used as a probiotic and digestive aid in animal feed. It is included in equine diets to support gut health, improve fiber digestion, and promote a balanced microbial population in the hindgut.

In equine nutrition, Saccharomyces cerevisiae is often added to feeds and supplements to enhance the fermentation of fibrous feedstuffs, leading to better nutrient absorption and digestive efficiency. It may be particularly beneficial for horses on high-fiber diets, those undergoing dietary transitions, or those prone to digestive disturbances such as colic or hindgut acidosis. While live yeast cultures provide direct probiotic effects, dried yeast products containing fermentation metabolites can also contribute to gut health and feed efficiency.

The following equine feeds, supplements and products contain Saccharomyces cerevisiae 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.
Natural E/Organic Se (Mad Barn)
AntioxidantAntioxidant
Organic Trace MineralsOrganic Trace Minerals
RecoveryRecovery
VitaminsVitamins
Natural E/Organic Se is a pelleted supplement providing organic Selenium yeast and natural Vitamin E. These two nutrients are important antioxidants that support muscle function and anti-inflammatory pathways.
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.
Optimum Digestive Health Pellets (Mad Barn)
DigestionDigestion
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
ProbioticProbiotic
Optimum Digestive Health from Mad Barn is a probiotic and prebiotic supplement designed to support hindgut health in the horse. It helps to maintain a stable microflora and promote immune health.
Trace Mineral Pak (Mad Barn)
Coat QualityCoat Quality
ExerciseExercise
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
Trace Mineral Pak from Mad Barn is a balanced equine supplement providing 100% organic (chelated) trace minerals. Ingredients include selenium, zinc, copper, and manganese.
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.
Excel (DePaolo Equine Concepts)
Gut HealthGut Health
HealthHealth
PrebioticPrebiotic
UlcersUlcers
Excel from DePaolo Equine Concepts is a supplement that aims to support and soothe the digestive tract in horses. It also can help with ulcers and the bacterial balance in the gut.
Farrier’s Best Friend (Pegasus)
Bone HealthBone Health
HealthHealth
Hoof HealthHoof Health
Skin + HairSkin + Hair
Farrier's Best Friend from Pegasus is meant to support hoof, skin, and hair health. This supplement contains biotin, zinc, methionine, and calcium.
Fat Smart (Matrix)
Coat QualityCoat Quality
EnergyEnergy
FatFat
Weight IssuesWeight Issues
Fat Smart by Matrix is a pelleted feed designed to supplement energy from fat and fiber sources. It contains 12% fat, 14% protein and 22% fiber.
Fiberpsyll 4 in 1 (Select The Best)
FiberFiber
PrebioticPrebiotic
ProbioticProbiotic
YeastYeast
Fiberpsyll 4 in 1 by Select The Best is a powdered supplement that intends to support the digestive system by providing probiotics and prebiotics that work together to promote healthy and efficient digestion.
Fibre O Plus (Brooks Feeds)
ExerciseExercise
FatFat
FiberFiber
Omega 3-6-9Omega 3-6-9
Fibre O Plus is a textured performance feed for horses with higher energy demands. It provides added calories from beet pulp and fat sources such as flax and rice bran.
Fibre Smart (Matrix)
Caloric EnergyCaloric Energy
FiberFiber
Gut HealthGut Health
HindgutHindgut
Fibre Smart by Matrix is a pelleted, complete feed with a higher fiber content of 22%. It provides 14% protein and 6% fat, and is designed to feed to horses in light - moderate work that require additional calories beyond forage.
Fibre-Lite Forage Replacer (Brooks)
Easy KeeperEasy Keeper
FiberFiber
Hay StretcherHay Stretcher
SeniorSenior
Fibre-Lite Forage Replacer is a pelleted feed containing 25% fibre from digestible sources such as soy hulls, wheat shorts, alfalfa meal, and beet pulp. It can be used as a partial hay replacer or for horses with lower energy requirements.
Finger Lakes 12:7 (Poulin Grain)
Complete FeedComplete Feed
GrainsGrains
PerformancePerformance
ProteinProtein
Finger Lakes 12:7 by Poulin Grain is a textured feed intended for race horses. It contains corn, oats, and vitamin and mineral pellets. It supplies 12% crude protein, 7% fat, and 8% fiber.
Fit & Fibre – Pelleted (Brooks Feeds)
Complete FeedComplete Feed
FatFat
FiberFiber
NutritionNutrition
Fit and Fibre is a high fat and fibre pelleted feed from Brooks Performance Horse Feeds. It contains a minimum of 6.50% fat and a maximum of 20% fibre with an NSC of 32.4% determined by independent testing. It is listed as a controlled NSC feed.
Fit & Fibre – Textured (Brooks Feeds)
Complete FeedComplete Feed
FatFat
FiberFiber
NutritionNutrition
Fit and Fibre is a high-fat and fibre textured feed from Brooks Performance Horse Feeds. This feed is meant to provide energy for horses in light to moderate work.
Flaxin 3 (Meal) (MVP)
Coat QualityCoat Quality
FatFat
Omega 3-6-9Omega 3-6-9
Organic Trace MineralsOrganic Trace Minerals
Flaxin 3 by MVP is a premixed supplement that provides a source of calcium and phosphorus with ingredients such as whole ground stabilized flax, minerals, and probiotics.
Foal Balancer Milk Pellets (Seminole)
FoalFoal
GrowthGrowth
ProbioticProbiotic
YeastYeast
Seminole Foal Balancer Milk Pellets is a milk replacer and creep feed intended for nursing and orphan foals. It can also be fed to lactating mares and performance horses. This feed contains probiotic and yeast culture.
Foal Starter (Buckeye)
EnergyEnergy
FoalFoal
PrebioticPrebiotic
ProteinProtein
Buckeye Foal Starter is a milk-based pellet that can be used as a free-choice transition or creep feed for foals under three months of age. It provides digestible fibre and protein sources.
Foal Starter Paste (DAC)
FoalFoal
HealthHealth
PrebioticPrebiotic
ProbioticProbiotic
Foal Starter Paste by DAC is a gut- and joint-health supplement formulated to support the overall well-being of young foals. It contains a blend of prebiotics, probiotics, and amino acids designed to promote a healthy developing microbiome and encourage proper growth and development.
Forage Plus Gastric Support (Standlee)
DigestionDigestion
Grain FreeGrain Free
HindgutHindgut
Low NSC FeedsLow NSC Feeds
Forage Plus Gastric Support from Standlee is an alfalfa-based pelleted feed. It is meant to assist with gut and hindgut health. It does not contain grain, and contains low NSCs.
G.I. Bloom (Peak Performance Nutrients)
DigestionDigestion
Gut HealthGut Health
ProbioticProbiotic
Weight IssuesWeight Issues
G.I. Bloom by Peak Performance Nutrients is a gut supplement containing probiotics meant to support healthy digestive function and optimal absorption. This supplement is intended for performance horses, broodmares, and foals.
G.I. Stable-ez (Elk Grove Milling)
DigestionDigestion
Gut HealthGut Health
PerformancePerformance
StressStress
G.I Stable-ez by Elk Grove Milling is a digestive support supplement in mini pellet form. It is intended to support a healthy gastrointestinal system in horses undergoing stress or changes in routine.
Galozyme Equine Sport (Technavet)
Competition HorsesCompetition Horses
DigestionDigestion
Gut HealthGut Health
VitaminsVitamins
Galozyme Equine Sport from Technavet is a supplement meant for horses in competition. It is intended to help with gut health and digestion through bacteria cultures.
Gastro-Plex Pellets (MVP)
ColicColic
DigestionDigestion
Gut HealthGut Health
YeastYeast
Gastro-Plex Pellets by MVP is a pelleted supplement that intends to aid digestive function. It contains antioxidants, probiotics and herbs that intend to help support stomach tissue lining and may ease discomfort.
Gastrowell (Probiotech)
Gut HealthGut Health
PerformancePerformance
ProbioticProbiotic
UlcersUlcers
Gastrowell by probiotech is a supplement intended to help alleviate discomfort from gastric ulcers in performance horses.
Genesis (Brooks)
BroodmareBroodmare
HealthHealth
NutrientsNutrients
VitaminsVitamins
Genesis by Brooks is a broodmare feed available in either textured or pelleted form. It is designed to meet the enhanced nutritional needs of mares before and after foaling, and it is marketed as having a low glycemic index.
Genesis Performance Plus (Organic Horse Feed)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
Genesis™ Performance Plus is a certified organic horse feed intended for race horses, 3-day eventers, and equine athletes. It provides 6.75% fat, 13.75% protein and 8.8% fibre from organic oats, hulless barley, peas, and flax seed meal.
Gentle Gut (DuMor)
DigestionDigestion
Gut HealthGut Health
HindgutHindgut
ProbioticProbiotic
DuMor Gentlegut is a pelleted supplement which encourages healthy digestive function, with probiotics and enzymes to support the digestion of forages and feed.
Get Go (Elk Grove Milling) [Discontinued]
Bone HealthBone Health
BroodmareBroodmare
FoalFoal
GrowthGrowth
Get Go by Elk Grove Milling is a pelleted complete feed intended for broodmares, foals and weanlings up to 18 months.
GIT Activator (Poulin Grain)
Gut HealthGut Health
HealthHealth
ProbioticProbiotic
YeastYeast
GIT Activator by Poulin Grain is a supplement that provides the Saccharomyces cerevisiae strain of yeast. Supplementing yeast can improve digestion and support gut health in farm animals. Previously know as "Live Cell Yeast".
Glucosamine 5000 (AniMed)
DigestionDigestion
HealthHealth
JointsJoints
VitaminsVitamins
Glucosamine 5000 from AniMed contains glucosamine which is meant to help produce proteoglycans, helping to maintain healthy joints and connective tissue. It also contains Yee-Sacc 1026 which can help with digestion.
Golden Age – Senior Horse Ration (Kelley’s Feed)
Caloric EnergyCaloric Energy
FiberFiber
NutritionNutrition
SeniorSenior
Kelley's Golden Age Senior is a pelleted feed containing fine ground alfalfa hay and pre-cooked extruded grain nuggets for mature and aged horses. It provides 14% protein, as well as added vitamins and minerals.
Growth (Equine Advantage)
FoalFoal
GrainsGrains
GrowthGrowth
Omega 3-6-9Omega 3-6-9
Growth is a textured feed formulated for young growing horses under 2 years old. This feed is highly palatable and provides moderate fibre levels from highly digestible sources including shredded beet pulp and soybean hulls.
Growth Pelleted (Woody’s Horse Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Woody's Growth Pelleted is a complete pelleted feed formulated for broodmares, foals, and growing horses. It contains added amino acids and chelated trace minerals. This feed contains a maximum of 15% crude fiber.
Growth Textured (Woody’s Horse Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Woody’s Growth Textured is a complete textured feed formulated for broodmares, stallions, and growing horses. Omega-3 fatty acids is meant to help strengthen immune systems in both mare and foal.
GROWTH Textured Sweet Feed (BUCKEYE Nutrition)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Growth Textured Sweet Feed by Buckeye is a complete feed designed for broodmares and growing horses. It provides fat, carbohydrates, and proteins from whole oats, soybean hulls, soybean oil and molasses. It contains 24% NSC.
Gut Balancer (Protexin Equine)
Gut HealthGut Health
HealthHealth
PrebioticPrebiotic
ProbioticProbiotic
Gut Balancer by Protexin Equine is a powdered pre- and probiotic daily supplement designed for all working classes of horses. It is formulated to contain 1 billions CFU of bacteria/yeast.
Gut Support (Pure Feed Company)
Gut HealthGut Health
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Gut Support by Pure Feed Company is a powdered supplement intended to help maintain natural gut balance during changes in diet, travel, competition or stress. It contains both prebiotics and probiotics.
Harmony (DePaolo Equine Concepts)
Amino AcidAmino Acid
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
Harmony from DePaolo Equine Concepts is a powdered supplement that aims to provide an even temperament in horses. It can also balance hormone levels and support a healthy endocrine system.
Healthy Evolution Farmland Recipe Horse Feed (Dr. Pol)
DentalDental
GrainsGrains
Mineral BalanceMineral Balance
VitaminsVitamins
Healthy Evolution Farmland Recipe Horse Feed is an extruded feed intended to enhance coat health and promote lean muscle growth for pregnant/lactating mares and growing foals.
Healthy Gut Remedy (Horse Logic Pro)
Gut HealthGut Health
HealthHealth
ImmunityImmunity
YeastYeast
Healthy Gut Remedy from Horse Logic Pro is a pelleted gut supplement for horses. Healthy Gut Remedy is intended to provide hind gut support.
Heritage 14% Textured with 8% Fat (Big V Feeds)
Complete FeedComplete Feed
FoalFoal
MareMare
PerformancePerformance
Heritage 14% Textured with 8% Fat by Big V Feeds is a feed with a high protein, high fat, and moderate level of fibre. This feed includes ingredients such as oats, soybean meal, and vitamins and minerals.
High Country Sweet (Kelley’s Feed)
Caloric EnergyCaloric Energy
ExerciseExercise
FlavorFlavor
NutritionNutrition
High Country Sweet by Kelley's Feed is a grain-based feed with added vitamins and minerals. It contains oats, barley, and corn. It is formulated to provide 12% crude protein.
High Impact (HorseLogic)
Hoof HealthHoof Health
JointsJoints
MuscleMuscle
PerformancePerformance
High Impact from HorseLogic is a hoof and joint supplement. High Impact contains amino acids and biotin for hoof health, plus MSM, glucosamine, collagen, and chondroitin for joint health.
High Point Pellets (HorseTech)
Gut HealthGut Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
High Point Pellets by HorseTech is a pelleted vitamin and mineral supplement formulated to balance forage-based diets and support overall health. It also contains added prebiotics to promote optimal digestive function.
Hiland’s Big Sky Mineral (Hiland Supply Co. Ltd)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Hiland's Big Sky Mineral by Hiland Supply Co. Ltd is a mineral supplement intended to support overall health in all horse types.
Hoof Medic Crumblet (AniMed – Plateau)
Amino AcidAmino Acid
GrowthGrowth
Hoof HealthHoof Health
NutrientsNutrients
Hoof Medic Crumblet from AniMed's Plateau helps to maintain healthy hooves. It also aims to support hoof growth by containing biotin among other nutrients.
Horse Guard
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Horse Guard is a pelleted, concentrated vitamin-mineral supplement designed for all classes of horses. The recommended feeding rate is 2 oz per day.
Horse Low Starch Ration Balancer (Modesto Milling)
FiberFiber
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
Horse Low Starch Ration Balancer from Modesto Milling is a ration balancer containing 20% protein, 19% fiber and 9.7% fat. It also contains vitamins and minerals.
Horse PLUS (Modesto Milling)
Caloric EnergyCaloric Energy
GrainsGrains
NutritionNutrition
ProteinProtein
Horse PLUS by Modesto Milling is a textured horse feed made using mostly organic ingredients. This feed contains grains, alfalfa, coconut meal, sunflower seeds, carrot pellets, flaxseed as well as added vitamins and minerals. It provides 12% crude protein, 4.5% fat and 13% crude fiber.
Horse Plus (Thrive Essential)
Mineral BalanceMineral Balance
PrebioticPrebiotic
ProbioticProbiotic
ProteinProtein
Horse Plus by Thrive Essential is a powdered daily vitamin and mineral supplement intended for all classes of horses. It is high in protein, and contains pre- and probiotics although the concentration is not disclosed.
Horse Senior Pellets (Modesto Milling)
Caloric EnergyCaloric Energy
GrainsGrains
ProteinProtein
SeniorSenior
Horse Senior Pellets by Modesto Milling is a concentrate feed that provides supplemental energy, vitamins, and minerals with mainly organic ingredients. The pellets contain 14% crude protein, 7.2% fat and 13.5% crude fiber.
Horse Supplement Pellets (Modesto Milling)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Modesto Milling Horse Supplement Pellets is a pelleted source of energy, protein, vitamins, and minerals that can be added to a horse ration. The pellets are made with organic oats, alfalfa, coconut meal, and sesame meal.
Hydraid (Natural Horse Vet)
ElectrolyteElectrolyte
HydrationHydration
RecoveryRecovery
StaminaStamina
Hydraid by Natural Horse Vet is a powdered supplement intended for performance horses to supply the electrolytes lost during competition. It contains dicalcium phosphate, calcium carbonate, and crushed mineral rock salt.
Icelandic Mix (Saracen Horse Feeds)
FatFat
FiberFiber
Mineral BalanceMineral Balance
VitaminsVitamins
Icelandic Mix is a mixed ration formulated specifically to meet the needs of Icelandic ponies in light to moderate work. This ration is low energy, low sugar, and low starch.

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