Horse supplement coverage spotlights need for ration-based guidance

Vitamin and mineral supplementation remains a live topic in equine nutrition, with sponsored, subscriber-only pieces from Equus Magazine and The Horse highlighting demand for practical guidance on choosing products for horses on forage-based diets. While the articles themselves are protected, broader veterinary and extension guidance is consistent: many horses on hay- or pasture-heavy rations may need targeted vitamin and trace mineral support, but the right choice depends on the full ration, life stage, workload, and geography. AAEP’s 2025 client education materials say trace minerals are essential for immune function, bone development, enzyme activity, and muscle function, and warn that imbalances can contribute to deficiency, metabolic issues, or poor performance. (aaep.org)

Why it matters: For veterinarians and equine practitioners, the bigger story isn’t a single “best” supplement. It’s the continued shift toward ration-based decision-making. University of Minnesota Extension notes that most forages don’t fully meet horses’ daily vitamin and trace mineral needs, making ration balancers or complete mineral supplements useful in some cases, especially when horses are underfed fortified feed or maintained largely on forage. But experts also stress that more isn’t always better: calcium-phosphorus balance matters, zinc can interfere with copper use, and selenium has a narrow safety margin. (extension.umn.edu)

What to watch: Expect more emphasis on forage testing, individualized ration balancing, and veterinary oversight as equine nutrition brands keep marketing all-in-one vitamin and mineral products. (aaep.org)