Poultry Grit is a mixture of flint grit and limestone grit, oyster shell, cockle shell and charcoal.  Flint grit acts like teeth in the crop to help chickens grind up their food. Limestone grit, oyster & cockle shell have a high mineral content, including the all-important calcium, for good shells on their eggs. Charcoal enhances the palatability of food and aids digestion.

1 Litre