Eating Eggshells for Calcium?

As I mentioned in my last post, I’m trying to reduce the number of supplements I take (and hence, supplement packaging) by getting my nutrients from whole foods instead of pills. So a few weeks ago, I was wondering aloud (apparently, I’ve started talking to myself a lot lately) about how I could get more calcium, and Michael, whose mind goes all sorts of random places, said, “You eat an egg every day. Why not eat the shell, too?” He wasn’t serious. But I wondered if eating eggshells was a thing. You know, a thing that people do. So of course, I turned to that trove of wisdom called Google, and lo and behold, there were lots of posts about how to do just that.
Before I go further… once again… I am not a doctor. I am not suggesting that you or anyone else should eat eggshells. I’m simply reporting my own experience.
Okay, so first I found this discussion, which lists several different studies… Read the rest