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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.
Ration Balancer (Woody’s Horse Nutrition)
DigestionDigestion
Grain FreeGrain Free
ProteinProtein
Ration BalancerRation Balancer
Woody’s Feed Ration Balancer is a concentrated, pelleted feed intended to balance a forage-based diet. It provides chelated trace minerals and added probiotics. This feed is intended for all horses and ponies at any level of work.
Ration Balancer Original (Lifeline)
DigestionDigestion
Grain FreeGrain Free
HealthHealth
Ration BalancerRation Balancer
Ration Balancer Original by Lifeline is a grain-free pelleted supplement intended for horses who are sensitive to carbohydrates.
Recovery Plus (Woody’s Horse Nutrition)
ExerciseExercise
MuscleMuscle
PerformancePerformance
RecoveryRecovery
Woody’s Recovery Plus is an equine supplement intended to be fed to horses post-exercise. It provides amino acids from whey protein concentrate, yeast, Vitamin E and other vitamins and minerals.
Red Cal GROW (Natural Horse Vet)
ElectrolyteElectrolyte
HydrationHydration
Mineral BalanceMineral Balance
NutrientsNutrients
Red Cal GROW by Natural Horse Vet is a granular supplement with added biotin, lysine, and methionine. It is intended for all life stages of horses and other livestock. It provides salt, minerals, and electrolytes.
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.
Rescue Aid Paste (DAC)
Gut HealthGut Health
HealthHealth
HindgutHindgut
ProbioticProbiotic
Rescue Aid Paste by DAC is a gut-health supplement formulated to support hindgut function in horses. It contains probiotics to help maintain a healthy digestive environment.
Ride & Relax (Allen & Page)
DigestionDigestion
Easy KeeperEasy Keeper
FiberFiber
NutritionNutrition
Ride & Relax from Allen & Page is a muesli mix with added mint for palatability. Ride & Relax contains added vitamins, minerals and probiotics. Ride & Relax is free from barely and molasses.
Safe ‘N Easy Senior Extruded Feed (Buckeye)
DentalDental
NutrientsNutrients
NutritionNutrition
SeniorSenior
Safe 'N Easy Senior is an extruded feed in an easy-to-chew format for older horses and ponies with dental issues. This feed also contains prebiotics and probiotics to support gut health. This feed contains 14.5% NSC.
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 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.
SecureGuard Gold (Arenus)
Gut HealthGut Health
HealthHealth
HindgutHindgut
NutritionNutrition
SecureGuard Gold from Arenus is a pelleted gut supplement for horses. SecureGuard Gold is intended for horses with chronic gut issues or poor body condition.
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.
Select One Vitamin/Mineral Balancer Pellet (Jones Horse Feeds)
Easy KeeperEasy Keeper
Low NSC FeedsLow NSC Feeds
Ration BalancerRation Balancer
VitaminsVitamins
Jones Select One Balancer Pellets is a concentrated mineral, vitamin and protein supplement. It is intended for overweight horses or easy keepers.
Senior (Brooks Feeds)
Complete FeedComplete Feed
FiberFiber
Omega 3-6-9Omega 3-6-9
SeniorSenior
Brooks Senior is a complete textured feed for geriatric horses. It contains elevated levels of fat and protein, digestible fibre sources, and can be soaked for senior horses with dental issues.
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 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.
Senior Care (Banks Mill Feeds)
FiberFiber
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
Banks Mill Feeds Senior Care is an easy-to-chew pelleted feed intended for senior horses with dental issues. It is meant to be made into a mash and provides high fiber content to replace forage.
Senior Formula (Seminole)
AntioxidantAntioxidant
Complete FeedComplete Feed
Gut HealthGut Health
SeniorSenior
Seminole Senior Formula™ is a textured feed formulated to meet the needs of senior horses. This easy-to-chew feed is beet pulp-based and contains rice bran, molasses and soybean oil for energy.
Senior Horse (Matrix)
Complete FeedComplete Feed
HealthHealth
SeniorSenior
VitaminsVitamins
Senior Horse by Matrix is a pelleted feed formulated for senior horses that provides 13% protein and 5% fat. It provides protein and energy which can help maintain condition in senior horses.
Senior Pellet (Lifeline Premium Horse Feeds)
DentalDental
DigestionDigestion
FiberFiber
SeniorSenior
Senior Pellet by Lifeline Premium Horse Feeds is a complete pelleted feed intended for older horses with problems chewing long-stem forage.
Senior Pelleted (Woody’s Horse Nutrition)
DigestionDigestion
FiberFiber
Gut HealthGut Health
SeniorSenior
Woody's Senior Pelleted is a complete pelleted grain-free feed intended for senior horses. It contains digestible fibre sources for horses that can no longer chew long-stem hay.
Senior Plus (Excel Equine Feeds)
FatFat
FiberFiber
SeniorSenior
Weight IssuesWeight Issues
Senior Plus from Excel Equine Feeds is a feed that helps senior horses maintain their body weight. It is high in fat and fiber to help encourage weight gain for thinner horses. It is low in starch and sugar, and is good for hard keepers.
Senior Stable Mix (Elk Grove Milling)
Complete FeedComplete Feed
HealthHealth
NutritionNutrition
SeniorSenior
Elk Grove Milling's Senior Stable Mix is a pelleted formula intended for mature and senior horses. It is high in fibre and it can be used as a forage replacement for horses with dental or digestion issues.
Senior Stable Mix GC (Elk Grove Milling)
Complete FeedComplete Feed
JointsJoints
NutrientsNutrients
SeniorSenior
Senior Stable Mix GC by Elk Grove Milling is a complete feed containing glucosamine and chondroitin. It is intended for senior horses showing signs of arthritis.
Senior Textured (Woody’s Horse Nutrition)
Caloric EnergyCaloric Energy
FatFat
ProteinProtein
SeniorSenior
Woody’s Senior Textured is a complete textured feed formulated for senior horses. It contains 10% fat and is made with oats, beet pulp, molasses, and vegetable oil. The crude protein in this feed has added amino acids to help maintain muscle mass.
Senior-Flex H/A (MVP)
ExerciseExercise
JointsJoints
RecoveryRecovery
SeniorSenior
Senior-Flex H/A by MVP is a pelleted supplement that contains hyaluronic acid, glucosamine, chondroitin sulphate, and MSM that intend to support joint function.
Senior-Flex Meal (MVP)
ExerciseExercise
JointsJoints
RecoveryRecovery
SeniorSenior
Senior-Flex Meal by MVP is a premixed supplement that contains hyaluronic acid, glucosamine, chondroitin sulphate, and MSM that intends to support joint function. It also includes probiotics that intend to help support the digestive process.
Sharpe 12% Sweet Feed (Sharpe Farm Supplies)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FlavorFlavor
Weight IssuesWeight Issues
Sharpe 12% Sweet Feed is a 12% crude protein multi-particle blend coated in molasses. Sweet feeds are high in NSC but may be used to increase the palatability of certain medications, supplements, or rations.
Shine ‘N Win (Buckeye)
Coat QualityCoat Quality
FatFat
Omega 3-6-9Omega 3-6-9
Skin + HairSkin + Hair
Buckeye Shine 'N Win is an equine supplement formulated to support hair coat quality in show horses and horses being prepared for sale. Energy sources include ground flaxseed, soybean oil, and wheat germ meal.
Show Formula (Seminole)
Competition HorsesCompetition Horses
ExerciseExercise
FatFat
PerformancePerformance
Seminole Show Formula is a textured feed for adult show and competition horses because of it's high calorie and energy density. Show Formula contains yeast cultures, chelated minerals, and antioxidants.
Signature Elite (Banks Mill Feeds)
Mineral BalanceMineral Balance
MuscleMuscle
PerformancePerformance
VitaminsVitamins
Banks Signature Elite is a beet pulp-based textured feed that provides high fat and fibre with probiotics. It is intended for mature horses in work.
Signature Prime (Banks Mill Feeds)
Mineral BalanceMineral Balance
NutrientsNutrients
SeniorSenior
VitaminsVitamins
Banks Signature Prime is a high-fat beet pulp-based textured feed with no corn. It is intended for senior horses as well as mature horses that need to gain weight.
Sleek (Banks Mill Feeds)
FatFat
FiberFiber
MuscleMuscle
PerformancePerformance
Sleek by Banks Feed Mill is a high-fat, beet pulp-based feed with low (7%) starch content. It contains 13% fat from flax, rice bran, and soybean oil.
Smart Carb Performance (Standlee)
ForageForage
Grain FreeGrain Free
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Smart Carb Performance by Standlee is a performance feed that is teff grass and alfalfa-based. It contains low sugar and starch, is grain free, and has probiotics. It is intended to assist with digestion and immunity.
SmartCombo Senior Ultra (SmartPak)
Gut HealthGut Health
Hoof HealthHoof Health
JointsJoints
SeniorSenior
SmartCombo Senior Ultra is a pelleted supplement intended for senior horses containing glucosamine, chondroitin sulfate, hyaluronic acid, MSM, biotin, omega 3 fatty acids, probiotics, prebiotics, and digestive enzymes.
SmartCombo Ultra Pellets (SmartPak)
Coat QualityCoat Quality
Hoof HealthHoof Health
JointsJoints
YeastYeast
This supplement made for horses by SmartPak is meant to support the health of hooves, joints, coat, and digestion. It is pelleted and contains yeast.
SmartDigest Ultra Pellets (SmartPak)
DigestionDigestion
HealthHealth
HindgutHindgut
NutritionNutrition
SmartDigest Ultra Pellets from SmartPak is a pelleted gut health supplement. SmartDigest Ultra Pellets are formulated with probiotics, prebiotics, and Diamond V® yeast culture intended to promote healthy digestive function.
SmartGain (SmartPak)
DigestionDigestion
IngredientIngredient
NutritionNutrition
YeastYeast
SmartGain from SmartPak is a powdered weight gain equine supplement. SmartGain is formulated with rice bran and coconut meal. This supplement includes added lysine, methionine and threonine intended to support healthy body condition.
Solution-12 (Tucker Milling)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
SeniorSenior
Solution 12 by Tucker Milling is a pelleted feed formulated for senior horses and is intended to be fed alongside forage. It includes lactic acid bacteria and yeast to support digestive health, though the specific inclusion levels are not disclosed.
Soothe & Gain (Allen & Page)
DigestionDigestion
FiberFiber
HindgutHindgut
NutritionNutrition
Soothe & Gain from Allen & Page is a high-energy feed which is high in fibre. Soothe & Gain is intended for horses and ponies who are prone to ulcers and digestive upsets. Soothe & Gain is free from barely, molasses, alfalfa and soy.
Sport 14 (Banks Mill Feeds)
BroodmareBroodmare
Caloric EnergyCaloric Energy
FatFat
ProteinProtein
Banks' Sport 14 is a high-protein, high-fat textured feed intended for breeding and performance horses. It contains 16.6% NSC with energy sources including wheat middlings, oats, soybean oil, beet pulp, alfalfa meal, and cane molasses.
Sport Horse Mix (Elk Grove Milling)
Caloric EnergyCaloric Energy
FiberFiber
NutrientsNutrients
PerformancePerformance
Sport Horse Mix by Elk Grove Milling is a complete feed containing copra meal to provide cool energy. It is intended for horses in moderate work.
Stable MAX Performance (Elk Grove Milling)
Complete FeedComplete Feed
MareMare
PerformancePerformance
StallionStallion
Stable MAX Performance is a complete feed from Elk Grove Milling intended for performance horses, stallions, and broodmares. It provides probiotics and 14% protein.
Stable MAX Senior Lite (Elk Grove Milling)
Complete FeedComplete Feed
NutritionNutrition
ProbioticProbiotic
SeniorSenior
Stable MAX Senior Lite is a complete feed from Elk Grove Milling intended for senior horses, hard keepers, and metabolic horses. It provides probiotics and 15% protein.
Stable MAX Ultra Mate (Elk Grove Milling)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
ProbioticProbiotic
ProteinProtein
Stable MAX Ultra Mate is a complete feed from Elk Grove Milling intended for easy keepers or horses in light work. It provides probiotics and 30% protein.
Stable Mix (Elk Grove Milling)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FiberFiber
Gut HealthGut Health
Stable Mix by Elk Grove Milling is a complete pelleted formula intended for all horses. This feed is high in fiber (30%) and can be used to replace forage in a horse's diet.
Stable Mix Futurity (Elk Grove Milling)
GrowthGrowth
PerformancePerformance
PrebioticPrebiotic
ProbioticProbiotic
Stable Mix Futurity by Elk Grove Milling is a pelleted feed intended for young horses in training.
Stable Mix GC (Elk Grove Milling)
Complete FeedComplete Feed
HealthHealth
JointsJoints
NutrientsNutrients
Stable Mix GC by Elk Grove Milling is a complete pelleted feed containing glucosamine and chondroitin. It is intended for horses that show signs of arthritis.
Stable Mix Lite (Elk Grove Milling)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Stable Mix Lite by Elk Grove Milling is a high fiber feed containing less than 12% NSC. It is intended for easy keepers, or horses needing low sugar and starch diets.

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