The Tribute Equine Nutrition Essential K Low-NSC Horse Feed is designed for idle, growing, breeding, and performance horses eating grass forage (sold separately). Its low feeding rate makes for low non-structural carbohydrate levels, so the ration balancer is also ideal for hyperactive horses and those with insulin resistance, laminitis, obesity, or tying-up issues. It’s free of corn and oats, and features an active dry yeast that acts as a prebiotic and probiotic to support your horse’s overall gut health.