Shell grit is a chicken dietary supplement, aiding in digestion and also benefiting their dietary health. Shell grit is made of ground up, gritty sea shells. It both looks and feels like a very coarse sand.
Shell grit for chooks helps them digest food and is an excellent source of slow-release calcium, critical for bone health and strong eggshells.
When chickens don’t get enough calcium from their diet, they draw it from calcium reserves in their bones.