Mc Mahon's Medium Shell Grit is made from crushed sea shells and is a popular mineral & calcium supplement and aids digestion in birds. The fine grade is suited to smaller birds like budgies, canaries, cockatiels etc. Grit serves to help your chickens with digestion of grains, and is a source of calcium to aid in egg shell strength.

Shell grit is a rich source of calcium, and can form an important part of your chicken's diet. Shell Grit is made from Australian natural seeds and nutrients, and is protein and vitamin enriched. All dust and husks have been removed, to ensure healthy, clean nutrition.