Our Guinea Fowl Formula is packed with lean protein and low in saturated fat. It is also rich in iron, for healthy blood cells, and phosphorous, for optimal bone health. Guinea Fowl is also a novel protein source, so it could be a great way to start an elimination diet for dogs who have sensitivities or allergic to certain meats, such as chicken. Our Guinea Fowl Formula is also grain free, and balanced with low glycemic carbohydrates to keep your dogs healthy and strong. Zignature Guinea Fowl Formula – Learned from Nature, Crafted to Perfection.