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Diatomaceous Earth - Feed Ingredient

Diatomaceous earth (DE) is a naturally occurring, silica-rich sedimentary material derived from the fossilized remains of diatoms, a type of microscopic algae. It consists primarily of amorphous silica and is commonly used in various agricultural applications, including feed additives, anti-caking agents, and pest control.

In equine nutrition, diatomaceous earth is sometimes included in feed formulations or supplements, though its benefits for horses remain largely anecdotal. Some claims suggest that it may aid in digestion or act as a natural dewormer; there is no quality scientific evidence supporting these claims is limited. Excessive ingestion of DE could potentially lead to gastrointestinal irritation or reduced nutrient absorption due to its high silica content.

The following equine feeds, supplements and products contain Diatomaceous Earth as an ingredient.

Feeds, Supplements & Products
HP3 (Equine Health and Performance, Inc.)
AntioxidantAntioxidant
HealthHealth
JointsJoints
RecoveryRecovery
HP3 by Equine Health and Performance, Inc. is a joint and tendon supplement designed for performance horses. It is formulated with MSM, turmeric and glucosamine sulfate.
Hyalcare Plus (Herbs for Horses)
Competition HorsesCompetition Horses
HealthHealth
JointsJoints
NutrientsNutrients
Hyalcare Plus from Herbs for Horses is a powdered equine joint supplement. Hyalcare Plus is formulated with MSM and collagen intended to support joint health in horses.
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.
Infinity (Daily Dose Equine)
FatFat
FiberFiber
Grain FreeGrain Free
NutrientsNutrients
Infinity by Daily Dose Equine is a granular, grain-free feed designed for performance horses. It is specifically formulated for horses with common feed allergies and sensitivities.
Kalm N EZ GC Plus (Tribute)
Complete FeedComplete Feed
FatFat
FiberFiber
JointsJoints
Kalm 'N EZ GC Plus is a pelleted complete feed with added glucosamine, chondroitin sulfate, and methylsulfonlymethane (MSM). It contains 14% crude protein, 8% crude fat and an NSC of 13.5%.
Kalm N EZ Pellets (Tribute)
Complete FeedComplete Feed
DigestionDigestion
FatFat
FiberFiber
Tribute Kalm 'N EZ Pellet is a complete horse feed formulated with no corn, oats, or molasses. Providing 13.5% NSC, this feed is appropriate for horses that require a low NSC diet.
Kalm N EZ Soy-Free Pellet (Tribute)
Complete FeedComplete Feed
FatFat
FiberFiber
NutritionNutrition
Kalm N EZ Soy-Free Pellet by Tribute is a pelleted feed that contains no corn, oats or molasses. It is intended for horses with special needs to provide higher fat and fibre to support calmer performances.
Kalm N EZ Textured (Tribute)
EnergyEnergy
ExerciseExercise
FiberFiber
Gut HealthGut Health
Kalm 'N EZ Textured is a textured complete feed with whole oats added. It is formulated to provide highly digestible energy at a lower NSC. It contains 14% crude protein, 6% crude fat, and 15.5% NSC.
Llama Concentrate Pellet (Bar Ale)
FiberFiber
HealthHealth
NutritionNutrition
VitaminsVitamins
Llama Concentrate Pellet is a pelleted feed intended for llamas of all ages. It contains 18% protein, 2.9% fat, and 18.5% fiber.
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.
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.
Mature Horse (Bar Ale)
Complete FeedComplete Feed
JointsJoints
NutritionNutrition
SeniorSenior
Mature Horse is intended to support overall health and nutrient requirements for an adult to a senior horse. It contains glucosamine which is meant to support joint health.
Milestone Compete Horse Food (Muenster)
Coat QualityCoat Quality
Competition HorsesCompetition Horses
FatFat
MuscleMuscle
Complete Horse Food is intended to promote muscle growth and function. It is ideal for performance horses and breeding stock as extra calories and energy are needed.
Milestone Foal Horse Food (Muenster)
FiberFiber
FoalFoal
GrowthGrowth
ProteinProtein
Foal Horse Food is intended for horses and ponies under the age of 1. The diet includes nutrients needed for normal growth and development.
Milestone Life Horse Food (Muenster)
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
Hay StretcherHay Stretcher
Life Horse Food is designed to be a hay replacer and provide nutrients to horses and ponies of all ages. It is ideal for horses that are in moderate work.
Milestone Life Plus Horse Food (Muenster)
FatFat
FiberFiber
GrainsGrains
Omega 3-6-9Omega 3-6-9
Life Plus is a pelleted feed intended to provide additional energy and nutrients to all horses and ponies. It is also suitable for performance horse and breeding horses as they need extra essential nutrients.
Milestone Optimize Horse Supplement (Muenster)
FatFat
NutritionNutrition
Omega 3-6-9Omega 3-6-9
Weight IssuesWeight Issues
Optimize Horse Supplement is a high-fat feed intended to provide more energy to breeding horses and performance horses. It contains nutrient dense ingredients such as coconut meal and flaxseed.
Milestone Senior Horse Food (Muenster)
FatFat
FiberFiber
MareMare
SeniorSenior
Milestone Senior Horse Food is a pelleted feed intended for older horses in light to moderate work. It is suitable as a supplemental feed when forage availability is limited. It contains high fiber, low starch, alfalfa, coconut, flax, and algae meal.
Natural Digestive Support – BioEquine Supplement
DigestionDigestion
Mineral BalanceMineral Balance
ProbioticProbiotic
Toxin BinderToxin Binder
BioEquine Natural Digestive Support is an equine gut health supplement containing probiotics, toxin binders, Diatomaceous Earth, minerals, vitamins and amino acids.
Pasture Lick (DAC)
HealthHealth
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Pasture Lick by DAC is a vitamin and mineral supplement lick for mature horses. It is formulated with Vitamin E, biotin, and yeast.
Perfectly Senior Horse Summer Pellet (Kruse’s Perfection Brand)
FiberFiber
GrainsGrains
JointsJoints
SeniorSenior
Perfectly Senior Horse Summer Pellet by Kruse's Perfection Brand is a pelleted feed that is intended to be fed to senior maintenance, performance, and breeding horses. This feed is meant to be fed as a complete feed or supplemented with hay or pasture equivalent.
Perfectly Senior Horse Winter Pellet (Kruse’s Perfection Brand)
BroodmareBroodmare
Complete FeedComplete Feed
PerformancePerformance
SeniorSenior
Perfectly Senior Horse Winter Pellet by Kruse's Perfection Brand is a feed that intends to be fed to senior maintenance, performance, and breeding horses either as a complete feed or supplemented with hay or pasture equivalent.
Performance Senior (Daily Dose Equine)
FatFat
FiberFiber
PerformancePerformance
SeniorSenior
Performance Senior by Daily Dose Equine is a textured feed that provides a high-calorie diet with 15% fat that is ideal for senior horses with dental issues or hard keepers.
Physique (Equi-lete)
Bone HealthBone Health
EnergyEnergy
HealthHealth
Mineral BalanceMineral Balance
UlcersUlcers
Physique by Equi-lete is a pelleted supplement intended to support bone and tissue health in all horse types.
Pur-A-Plus (Purina)
Feed EfficiencyFeed Efficiency
HindgutHindgut
VitaminsVitamins
YeastYeast
Pur-A-Plus is a vitamin-enriched yeast culture supplement made with Saccharomyces cerevisiae. Yeast supports the hindgut microbial environment and digestion in horses. Each 28-gram serving provides 9 billion CFUs.
Red Cal (Natural Horse Vet)
CalmingCalming
ElectrolyteElectrolyte
Mineral BalanceMineral Balance
NutrientsNutrients
Red Cal by Natural Horse Vet is a granular supplement that is intended for all life stages of horses and other livestock that provides salt, minerals, and electrolytes.
Red Cal Hi-MAG (Natural Horse Vet)
ElectrolyteElectrolyte
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
NutrientsNutrients
Red Cal Hi-MAG by Natural Horse Vet is a granular supplement with added magnesium oxide that is intended for all life stages of horses and other livestock. It provides salt, minerals, and electrolytes.
Remission Hoof Supplement (AniMed)
Hoof HealthHoof Health
ProbioticProbiotic
Toxin BinderToxin Binder
YeastYeast
Remission Hoof Supplement is an equine supplement composed of amino acids, vitamins and minerals to support hoof health. It provides 20 mg of biotin per serving.
Renew Gold (Manna Pro)
FatFat
FiberFiber
Omega 3-6-9Omega 3-6-9
ProteinProtein
MannaPro Renew Gold is a stabilized rice bran supplement with CoolStance® coconut meal, flaxseed, and yeast. This high-fat (17%) feed provides caloric energy without excess sugars and starches.
Renew Gold Senior (Manna Pro)
Caloric EnergyCaloric Energy
JointsJoints
PerformancePerformance
SeniorSenior
Renew Gold Senior from Manna Pro is an extruded pellet that combines stabilized rice bran, CoolStance® Coconut Meal, ground peas, and stabilized ground whole flax. It also contains added glucosamine and chondroitin sulphate for joint support.
Rhythm (Equi-lete)
DigestionDigestion
Gut HealthGut Health
HindgutHindgut
StressStress
Rhythm by Equi-lete is a pelleted gastric support supplement intended to support the foregut and hindgut in all horse types.
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 Sport (Tribute)
Complete FeedComplete Feed
ExerciseExercise
FiberFiber
SeniorSenior
Tribute Senior Sport™ is a high calorie feed for mature performance horses. It provides 16.5% NSC with 10% fat and 18% fibre to support performance.
Senior Sport with Glucosamine (Tribute)
ExerciseExercise
FatFat
FiberFiber
SeniorSenior
Senior Sport with Glucosamine by Tribute is a textured feed for seniors with added glucosamine that intends to support joint health. It contains high fat and fibre to support calmer performances.
Seniority Low NSC (Tribute)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Seniority Low NSC from Tribute is a complete feed containing 10% NSC (Starch + Sugar). This feed is intended for horses with sugar and starch sensitivities.
SmartBug-Off (SmartPak)
HerbHerb
ImmunityImmunity
NutrientsNutrients
Skin + HairSkin + Hair
SmartBug-Off is a pelleted horse supplement to deter biting insects and support skin health. It contains MSM, DL-methionine, garlic, apple cider vinegar, grape seed extract and other ingredients.
SmartBug-Off Pellets (SmartPak)
HealthHealth
HerbHerb
ImmunityImmunity
Skin + HairSkin + Hair
SmartPak's SmartBug-Off Pellets is a horse supplement that contains ingredients like garlic purported to deter biting insects. It also provides ingredients that support skin health.
SmartBug-Off Ultra Pellets (Smart Pak)
Coat QualityCoat Quality
HealthHealth
ImmunityImmunity
NutritionNutrition
SmartBug-Off Ultra Pellets from SmartPak is a pelleted supplement intended for horses who are bothered by flies. SmartBug-Off Ultra Pellets contain garlic and apple cider vinegar intended to decrease the fly load on horses.
SmartBug-Off Ultra Pellets (SmartPak)
Coat QualityCoat Quality
HealthHealth
HerbHerb
Skin + HairSkin + Hair
SmartBug-Off Ultra Pellets from SmartPak is a pelleted equine supplement intended to help horses who are bothered by flies. This supplement is formulated with garlic and apple cider vinegar intended to decrease the fly load on horses.
Solution 10-10-10 (Tucker Milling)
EnergyEnergy
GrainsGrains
NutrientsNutrients
PerformancePerformance
Solution 10-10-10 by Tucker Milling is a textured feed specially formulated for mature performance horses. With 10% protein, 10% fat, and 10% fiber, it delivers a balanced nutritional profile that meets energy demands while keeping protein levels moderate.
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.
Sun Supreme Equine (Field Fresh Feeds)
BroodmareBroodmare
Complete FeedComplete Feed
Competition HorsesCompetition Horses
HealthHealth
Sun Supreme from Field Fresh Feeds is a textured feed intended for performance horses, racehorses and broodmares. Sun Supreme is formulated with oats, peas and barley.
Sweet ‘N Safe (Daily Dose Equine)
Caloric EnergyCaloric Energy
FatFat
FlavorFlavor
GrainsGrains
Sweet 'N Safe by Daily Dose Equine is a textured feed for the average horse needing a higher caloric intake. It contains energy sources such as roasted whole oats, roasted whole barley, and roasted whole soybeans.
ThriveFeed Horse Feed
ForageForage
Gut HealthGut Health
HealthHealth
NutrientsNutrients
ThriveFeed is a pelleted horse feed composed of alfalfa meal, timothy grass meal, sorghum, soybean meal, rice bran and kelp meal. It provides 15% protein, 2.5% fat and 20% fiber.
Total Equine (Total Feeds)
Complete FeedComplete Feed
FiberFiber
Gut HealthGut Health
ProteinProtein
Total Equine is a feed formulated for horses, mules, and donkeys. It contains 15% crude protein and 5% fat. Energy and protein sources include alfalfa meal, rice bran, wheat middlings and soybean meal.
Total Equine Essentials (Total Feeds)
CirculationCirculation
Low NSC FeedsLow NSC Feeds
Mineral BalanceMineral Balance
VitaminsVitamins
Total Equine Essentials is a complete extruded ration balancer intended for horses of all classes and activity levels. It has a low feeding rate and is designed to help to keep the NSC content of the diet low.
Total Equine LNSC (Total Feeds)
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
NutrientsNutrients
Ration BalancerRation Balancer
Total Equine LNSC is a complete ration designed for horses suffering from insulin resistance. It contains a maximum 16% NSC with high 15% crude protein and moderate 5% fat.
Tough as Nails (Tribute)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Tribute Tough As Nails is a pelleted horse supplement formulated to support hoof growth. It contains biotin, calcium, iodine, organic minerals and the amino acid methionine.
U-Gard Pellets (MannaPro)
DigestionDigestion
Gut HealthGut Health
HerbHerb
UlcersUlcers
U-Gard® Pellets is a gut health supplement for performance horses with gastric ulcers. It contains calcium and magnesium which can buffer stomach acid to increase gastric pH.
ZenA-Min Vitamin Mineral Supplement
Hoof HealthHoof Health
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
ZenA-min is an equine vitamin and mineral supplement formulated with trace minerals, kelp, vitamins, enzymes, and anti-oxidants. This feed is recommended for seniors and adult horses under stress or a heavy workload.

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