Long before I got my babies I started saving egg shells. I wash them, dry them and then bake them. I ground them up and have a supply. I did this to provide my babies with GRIT. I've had a bowl of it available since they started eating various treats. Is this ground eggshells the same as GRIT? Just making sure because I read someplace else this am that you could give them egg shells - but they needed GRIT for digestion. Thanks for the clarification!