If you only feed grower or some other chicken feed they don't need grit because the grain in it is already ground.
If you feed scratch or other things that need to be ground up they need grit.
If they are out foraging where there is sand and small pebbles, they'll get all the grit they need.
If you feed scratch or other things that need to be ground up they need grit.
If they are out foraging where there is sand and small pebbles, they'll get all the grit they need.