Medium shell grit offers several benefits for chooks (chickens). Firstly, it plays a crucial role in supporting their digestive health. As chickens do not have teeth, they rely on grit to grind their food in their gizzards, aiding in the breakdown of grains and other hard foods they consume. 

Medium shell grit helps improve eggshell quality. It provides a rich source of calcium, a vital mineral for hens to produce strong and healthy eggshells. When chooks have access to shell grit, they can maintain optimal calcium levels, reducing the risk of thin or brittle eggshells, which can be susceptible to cracking during laying.