The Vital Extra?

Hay and pasture provide your horse with protein, minerals, and vitamins, but it’s hard to know exactly in what proportions. Hay fields and grass pastures can have inconsistent nutrient values, varying significantly from one geographic area to another. Providing a ration balancer makes sure your horse has the nutrients he needs to thrive. Ask your equine nutritionist or veterinarian if a ration balancer might be a good choice for your horse.