Essential K® GC is a low sugar/starch (NSC), no added iron ration balancer with added glucosamine, chondroitin sulfate. It is designed to be fed to easy-keeping or overweight horses, or used as a top-dress with any other Tribute® feed to provide additional vitamins, trace minerals and amino acids to support performance or enhance topline. This ration balancer is ideal for horses consuming hay or pasture that is 50% or less alfalfa (or other legumes). If feeding hay or pasture that is 50% or more alfalfa, check out Alfa Essentials®. Essential K® GC is formulated with pre- and probiotics to support your horse’s digestive health.