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

Mad Barn Omneity Premix ranks as a best-in-class multivitamin blend because it combines a comprehensive spectrum of vitamins, trace minerals and chelated nutrients in a premix designed for easy inclusion in rations and custom formulations. Technically it stands out for research-driven formulation and bioavailable ingredient choices that often reduce the need for multiple separate supplements, making it a cost-efficient option versus single-purpose products on this list.

Natural Factors Trace Minerals is the budget-conscious choice on this list, offering a broad-spectrum mineral complex often sourced from whole-food or marine-derived inputs and targeted to price-sensitive consumers. While it may not emphasize the pharmaceutical-grade testing or practitioner-only delivery of Thorne and Genestra, it provides strong financial value for routine supplementation and large-scale use.

Jamieson Vitamin D3 1000 IU is a market-leading, reliably manufactured daily maintenance dose that fits the single-nutrient supplement use case by delivering consistent, lab-tested cholecalciferol. It outcompetes higher‑dose or specialty D products by offering predictable daily intake and generally lower per-dose cost, making it a practical choice for long-term bone and immune support compared with combination or high‑potency alternatives.

Masterfeeds GroMax Mineral blends practical chelation with commercial-scale pricing, giving producers a balanced mineral program for growing horses that benefits from mill-level quality control and competitive per-ton costs. It typically offers moderate levels of chelated trace elements—more bioavailable than plain inorganic mixes but not as concentrated as boutique premixes—making it a strong mid-market choice for operations that need reliable supply and reasonable economics.

Mad Barn Omneity Equine Mineral and Vitamin is positioned as the comprehensive, all-in-one powdered top-dress for horses that need a complete mineral and vitamin profile; its lab-formulated, bioavailable chelated minerals make it a technical standout for reducing the need to layer multiple supplements. While typically priced above single-purpose products on this list, its breadth can be more cost-effective long term by replacing separate vitamin, mineral and trace-element top dresses like those that pair with electrolytes or herbal blends.

Finish Line Ultra Fire is a market-leading liquid designed for quick energy support and performance, combining concentrated calories, B-vitamins and electrolytes to help horses perform under stress. It stands out against vitamin-focused liquids like Mad Barn by prioritizing immediate fuel and warm-up effects, and typically offers mid-range pricing and widespread retail distribution that undercuts boutique veterinary brands while delivering more targeted performance benefits than general herbal options.

Perfect Prep EQ Gold Paste is formulated specifically for equine use and marketed as a high-purity, fast-acting paste that balances electrolytes with digestive buffers for performance and recovery applications. Its market-leading position comes from an equine-focused formulation and perceived ingredient quality, which justifies a premium price relative to general livestock pastes while offering technical benefits for athletic horses that need both rehydration and stomach pH support. Compared with calf-targeted or generic multi-vitamin pastes, EQ Gold is optimized for equine physiology and competitive scenarios.