This form is quite similar to teeth and Maxwell Keto bones. Eggshell calcium increases the density of bones. It also helps with arthritic pain and can stimulate the growth of cartilages.
The best thing is the fact that you can make your own eggshell supplement at home. All you need is organic eggs. The best are ones that are straight from the farm and very fresh. When the shell is thicker, then it should tell you that you will get even more nutrients.