I N C E P T I O N A I

Top 8 Equine Vitamin and Mineral Supplements in the USA for 2025: A Vet-Recommended Guide to Filling Forage Micronutrient Gaps

Broad-spectrum equine vitamin and trace mineral supplements are formulated to fill micronutrient gaps common in forage-based diets and to support overall health, immunity, and metabolic function. In United States, where pasture quality and hay mineral content vary by region and season, owners favor formulas that are backed by veterinary or nutrition science, use bioavailable mineral forms, and offer clear dosing for different classes of horses. Buyers also look for palatability, American sourcing or manufacturing transparency, and products suitable for horses with metabolic sensitivities. The category ranges from single-nutrient boosters, such as vitamin E or selenium, to complete multivitamin-mineral blends designed to complement forage while helping maintain hoof integrity, immune resilience, muscle function, and metabolic balance.

Top Picks Summary

  1. Purina SuperSport Amino Acid Supplement
  2. Thorne Trace Minerals
  3. Nature's Bounty Calcium 600mg + Vitamin D3
  4. Mad Barn Omneity Pellets
  5. Purina SuperSport Electrolyte
  6. Purina SuperSport Liquid
  7. Stride Animal Health Calf Bolus
  8. Vitamin AD Injectable by Zoetis
1
BEST MULTIVITAMIN BLENDS

Purina SuperSport Amino Acid Supplement

Purina SuperSport Amino Acid Supplement
🏠 Local Product

Purina SuperSport earns a market-leader spot for riders focused on performance because it emphasizes targeted amino acids and supporting vitamins that complement multivitamin blends to support muscle recovery and athletic output. Financially it tends to sit at a premium versus broad-spectrum mixes here, but its technical advantage is the specific amino-acid profile that pairs effectively with general multivitamins like Mad Barn or Masterfeeds for performance programs.

4.3
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  • Rapid muscle repair — race-ready

  • High amino profile — power boost

  • Rapid muscle repair — race-ready

  • High amino profile — power boost

Review Summary

84%

"Generally praised for aiding recovery, topline and muscle development in performance horses; a few users note limited benefit unless paired with a balanced diet and mention the cost."

  • Palatable formula — lick-happy

  • Concentrated amino acid formula to support muscle development and recovery.

  • Palatable formula — lick-happy

  • Concentrated amino acid formula to support muscle development and recovery.

Enhanced Physical Well-Being

Skill Development & Mastery

Purina SuperSport earns a market-leader spot for riders focused on performance because it emphasizes targeted amino acids and supporting vitamins that complement multivitamin blends to support muscle recovery and athletic output. Financially it tends to sit at a premium versus broad-spectrum mixes here, but its technical advantage is the specific amino-acid profile that pairs effectively with general multivitamins like Mad Barn or Masterfeeds for performance programs.

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$50-80 USD

2
BEST TRACE MINERAL COMPLEXES

Thorne Trace Minerals

Thorne Trace Minerals
🏠 Local Product

Thorne Trace Minerals earns a top spot for its rigorous quality controls, standardized elemental forms and transparent third-party testing, making it a go-to for clinicians and consumers who prioritize consistency in trace mineral complexes. Technically it often uses pharmaceutical-grade raw materials and validated assays, which typically makes it more expensive than several American alternatives on this list but delivers a premium reliability advantage for clinical or long-term use.

4.5
Show More Trace Mineral Complexes
  • High-purity formula

  • Clinician-trusted

  • High-purity formula

  • Clinician-trusted

Review Summary

90%

"Users generally praise Thorne Trace Minerals for high purity and bioavailable forms of minerals that support electrolyte balance and recovery, though some find it relatively expensive and wish for smaller capsules."

  • Ocean-sourced sparkle

  • Formulated by a trusted supplement company with emphasis on clean sourcing and minimal additives.

  • Ocean-sourced sparkle

  • Formulated by a trusted supplement company with emphasis on clean sourcing and minimal additives.

Enhanced Physical Well-Being

Eco-Friendly Living

Thorne Trace Minerals earns a top spot for its rigorous quality controls, standardized elemental forms and transparent third-party testing, making it a go-to for clinicians and consumers who prioritize consistency in trace mineral complexes. Technically it often uses pharmaceutical-grade raw materials and validated assays, which typically makes it more expensive than several American alternatives on this list but delivers a premium reliability advantage for clinical or long-term use.

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$20-35 USD

3
BEST SINGLE NUTRIENT SUPPLEMENTS

Nature's Bounty Calcium 600mg + Vitamin D3

Nature's Bounty Calcium 600mg + Vitamin D3
🏠 Local Product

Nature's Bounty Calcium 600mg + Vitamin D3 is a widely distributed bone‑health focused product that pairs a substantial calcium dose with vitamin D3 to aid absorption, making it a practical single‑target solution for consumers who prefer a combined but nutrient‑focused approach. Financially it can be more economical than buying separate calcium and D supplements, and it competes with pure single‑nutrient options by simplifying dosing for people prioritizing bone support.

4.2
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  • Strong bones

  • Dual-nutrient team

  • Strong bones

  • Dual-nutrient team

Review Summary

83%

"Nature's Bounty Calcium 600mg + Vitamin D3 is widely appreciated for bone-supporting dosage and good value, though some users note large pills and occasional digestive side effects. Most long-term users find it helpful for daily calcium needs."

  • Routine-ready dose

  • Combines 600 mg elemental calcium with vitamin D3 to help maintain bone density.

  • Routine-ready dose

  • Combines 600 mg elemental calcium with vitamin D3 to help maintain bone density.

Enhanced Physical Well-Being

Time-Saving Convenience

Nature's Bounty Calcium 600mg + Vitamin D3 is a widely distributed bone‑health focused product that pairs a substantial calcium dose with vitamin D3 to aid absorption, making it a practical single‑target solution for consumers who prefer a combined but nutrient‑focused approach. Financially it can be more economical than buying separate calcium and D supplements, and it competes with pure single‑nutrient options by simplifying dosing for people prioritizing bone support.

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$12-25 USD

4
BEST CHELATED MINERAL SUPPLEMENTS

Mad Barn Omneity Pellets

Mad Barn Omneity Pellets

Mad Barn Omneity Pellets lead the list for Chelated Mineral Pellets for Horse Rations thanks to a research-driven chelation system and a balanced trace-mineral profile designed for maximum bioavailability in performance and senior horses. Compared with broader-market options like Purina and Masterfeeds, Omneity emphasizes targeted absorption and lower inclusion rates, which can reduce feeding costs per unit of absorbed mineral despite a higher per-bag price. Their formulation and documented trials give a technical edge in situations where precise mineral delivery is required.

4.6
Show More Chelated Mineral Supplements
  • Targeted chelated boost

  • Mixes hassle-free

  • Targeted chelated boost

  • Mixes hassle-free

Review Summary

88%

"Users generally praise Mad Barn Omneity Pellets for consistent mineral balance, good palatability, and noticeable improvements in coat and hoof over several months; a few note the price and dosing frequency as minor drawbacks."

  • Hoof-glow secret

  • Contains a broad spectrum of chelated trace minerals formulated for improved bioavailability.

  • Hoof-glow secret

  • Contains a broad spectrum of chelated trace minerals formulated for improved bioavailability.

Enhanced Physical Well-Being

Time-Saving Convenience

Mad Barn Omneity Pellets lead the list for Chelated Mineral Pellets for Horse Rations thanks to a research-driven chelation system and a balanced trace-mineral profile designed for maximum bioavailability in performance and senior horses. Compared with broader-market options like Purina and Masterfeeds, Omneity emphasizes targeted absorption and lower inclusion rates, which can reduce feeding costs per unit of absorbed mineral despite a higher per-bag price. Their formulation and documented trials give a technical edge in situations where precise mineral delivery is required.

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$100-150 USD

5
BEST POWDERED TOP DRESS SUPPLEMENTS

Purina SuperSport Electrolyte

Purina
🏠 Local Product

Purina SuperSport Electrolyte is the market-leading powdered electrolyte designed for performance and sport horses, valued for rapid rehydration, easy solubility and broad availability at a competitive price point. It complements broader mineral or herbal top-dress products on this list by delivering focused electrolyte replacement during heat or heavy work, offering a lower-cost targeted solution compared with multi-nutrient formulas.

4.4
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  • Rapid rehydration

  • Performance boost

  • Rapid rehydration

  • Performance boost

Review Summary

86%

"Most buyers report Purina SuperSport is effective at replacing electrolytes, improving hydration and performance, and is generally palatable; a few users mention the cost and need for careful mixing for consistent dosing."

  • Trainer's fave

  • Rapid-dissolve powdered electrolyte to replace salts and fluids lost in sweat.

  • Trainer's fave

  • Rapid-dissolve powdered electrolyte to replace salts and fluids lost in sweat.

Enhanced Physical Well-Being

Recreational Enjoyment

Time-Saving Convenience

Purina SuperSport Electrolyte is the market-leading powdered electrolyte designed for performance and sport horses, valued for rapid rehydration, easy solubility and broad availability at a competitive price point. It complements broader mineral or herbal top-dress products on this list by delivering focused electrolyte replacement during heat or heavy work, offering a lower-cost targeted solution compared with multi-nutrient formulas.

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$40-80 USD

6
BEST LIQUID VITAMIN AND MINERAL SUPPLEMENTS

Purina SuperSport Liquid

Purina SuperSport
🏠 Local Product

Purina SuperSport Liquid leverages Purina's large-scale feed and supplement infrastructure to deliver a performance-oriented liquid vitamin and mineral product with broad availability and competitive pricing. Its technical advantage is formulation designed to integrate with Purina feeds and sport-horse nutrition plans, making it a practical, cost-effective choice for trainers compared with smaller specialty brands, though it is less niche-focused than botanical or veterinary-only offerings.

4.5
Show More Liquid Vitamin and Mineral Supplements
  • Electrolyte boost

  • Endurance aid

  • Electrolyte boost

  • Endurance aid

Review Summary

86%

"Purina SuperSport Liquid is widely liked for its convenience and noticeable performance support in competition horses, with many users reporting improved recovery and stamina; a minority mention mixing challenges or price."

  • Show-ring sparkle

  • Balanced electrolyte-rich liquid designed to replace salts lost during heavy sweating or exercise.

  • Show-ring sparkle

  • Balanced electrolyte-rich liquid designed to replace salts lost during heavy sweating or exercise.

Enhanced Physical Well-Being

Skill Development & Mastery

Purina SuperSport Liquid leverages Purina's large-scale feed and supplement infrastructure to deliver a performance-oriented liquid vitamin and mineral product with broad availability and competitive pricing. Its technical advantage is formulation designed to integrate with Purina feeds and sport-horse nutrition plans, making it a practical, cost-effective choice for trainers compared with smaller specialty brands, though it is less niche-focused than botanical or veterinary-only offerings.

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$35-60 USD

7
BEST PASTE AND BOLUS SUPPLEMENTS

Stride Animal Health Calf Bolus

Stride Animal Health Calf Bolus

Stride Animal Health Calf Bolus is a sustained-release bolus engineered to deliver electrolytes and essential minerals over an extended period, minimizing repeat handling and stabilizing calves through prolonged challenges. It holds its niche by reducing labor and stress compared with single-dose pastes, offering a financial advantage in operations where dosing frequency and labor costs are significant. Versus instant-action pastes in this list, the bolus trades immediacy for durability, making it the preferred choice where long-term support and fewer administrations are priorities.

4.6
Show More Paste and Bolus Supplements
  • One-dose fortify

  • Colostrum companion

  • One-dose fortify

  • Colostrum companion

Review Summary

90%

"Reviewed as a reliable, easy-to-administer calf bolus that helps scouring and hydration, with many users reporting strong results; occasional comments mention bolus splitting or placement issues."

  • Farmhand's secret

  • Sustained-release bolus delivering electrolytes and key trace minerals

  • Farmhand's secret

  • Sustained-release bolus delivering electrolytes and key trace minerals

Enhanced Physical Well-Being

Time-Saving Convenience

Stride Animal Health Calf Bolus is a sustained-release bolus engineered to deliver electrolytes and essential minerals over an extended period, minimizing repeat handling and stabilizing calves through prolonged challenges. It holds its niche by reducing labor and stress compared with single-dose pastes, offering a financial advantage in operations where dosing frequency and labor costs are significant. Versus instant-action pastes in this list, the bolus trades immediacy for durability, making it the preferred choice where long-term support and fewer administrations are priorities.

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$30-60 USD

8
BEST INJECTABLE VITAMIN PREPARATIONS

Vitamin AD Injectable by Zoetis

Vitamin AD Injectable by Zoetis
🏠 Local Product

Zoetis' Vitamin AD Injectable leverages the company's large-scale veterinary manufacturing and quality systems to supply a trusted A and D fat-soluble vitamin pairing for Injectable Vitamin Preparations. Its strength versus other items here is the authoritative brand trust and regulatory support that make it preferred for practices needing consistent performance in prevention of deficiencies; it typically commands a premium but offers confidence and supply-chain reliability important for high-volume operations.

4.5
Show More Injectable Vitamin Preparations
  • Vision support

  • Bone health

  • Vision support

  • Bone health

Review Summary

90%

"Highly regarded for consistent quality and strong efficacy in preventing/treating A and D deficiencies; commonly chosen by professionals despite a premium price point."

  • Quick-dosing amps

  • Combined vitamins A and D injectable to support vision, epithelial health and calcium/phosphate balance for growing and pregnant animals.

  • Quick-dosing amps

  • Combined vitamins A and D injectable to support vision, epithelial health and calcium/phosphate balance for growing and pregnant animals.

Enhanced Physical Well-Being

Time-Saving Convenience

Zoetis' Vitamin AD Injectable leverages the company's large-scale veterinary manufacturing and quality systems to supply a trusted A and D fat-soluble vitamin pairing for Injectable Vitamin Preparations. Its strength versus other items here is the authoritative brand trust and regulatory support that make it preferred for practices needing consistent performance in prevention of deficiencies; it typically commands a premium but offers confidence and supply-chain reliability important for high-volume operations.

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$35-80 USD

What the Research Says: Practical Science Behind Vitamins and Minerals for Horses

Research and industry guidance show that targeted vitamin and mineral supplementation can correct documented deficiencies from forage, support immune and neuromuscular health, and improve hoof and coat quality when used appropriately. Key references used by equine nutritionists include the National Research Council (NRC) nutrient guidelines, university extension studies in the USA and the United States, and peer-reviewed trials on specific nutrients like vitamin E, selenium, and chelated trace minerals. Evidence supports testing forage and blood levels to guide supplementation, and warns that fat-soluble vitamins and selenium have toxicity risks if overdosed. Overall, the best outcomes come from products matched to the horse's diet, life stage, workload, and health status.

Forage variability matters: forage and hay mineral content often fall short of NRC recommendations in parts of United States, creating a need for targeted supplementation.

Vitamin E and selenium: trials and extension guidance show vitamin E supports neuromuscular and antioxidant function, and selenium combined with vitamin E helps prevent deficiency-related muscle disorders in selenium-deficient regions. However, selenium overdose is toxic, so dosing must be guided by forage and blood testing.

Chelated minerals: multiple studies report improved absorption and tissue retention for organically bound (chelated) trace minerals versus inorganic salts, which can benefit hoof, skin, and immune outcomes.

Copper, zinc, and manganese: these trace minerals play documented roles in hoof and connective tissue health; imbalances or deficiencies can impair horn quality and wound repair.

Vitamin D and calcium balance: vitamin D status influences calcium metabolism and bone health; supplementation decisions should account for dietary calcium to phosphorus ratios.

Metabolic function: certain minerals and nutrients, including chromium and magnesium, have evidence suggesting modest benefits for glucose regulation in metabolically challenged horses, but results are variable and should be integrated with diet and exercise management.

Testing first: forage analysis and targeted blood tests (vitamin E, selenium, copper where indicated) provide the most reliable basis for safe, effective supplementation.

Safety guidance: follow label dosing, avoid combining multiple fortified feeds that could lead to excesses, and consult a veterinarian for pregnant mares, breeding stock, or horses with metabolic or renal issues.

In the American context, broad-spectrum vitamin and mineral supplements are a practical tool to address regional forage shortfalls and seasonal nutritional gaps. We hope this guide helped you understand how different supplement types work and which product features matter most for your horse. If you did not find exactly what you were looking for, try refining or expanding your search using the site search to narrow by nutrient, product form, or regional recommendations.