Flock Perfect LayerDeveloper Grit Grit is an important part of poultry diets that will help your get the most nutrition out of their feed. Grit is stored in the ventriculus, or gizzard, which is the part of the digestive tract that mechanically breaks down food and aids in the grinding of food particles. Grit should be provided choice to allow to selfregulate their intake to best suit their individual needs. Layer Grit is the perfect size of crushed granite for adult chickens to improve feed efficiency during digestion. NonGMO, Certified OrganicSoyFree FacilitiesOnly North American Sourced GrainsNCO Owns Mills in VA and TXNext Day Shipping Brand: CHRED