well, of course, one can kill themselves drinking too much WATER...everything "can" be risky. My point is that there's no reason to ingest substances that are consistently damaging to the human body (in some way or another). Eating ground-up rocks for minerals (when plants are available), isn't optimal, nor is it healthy.
You obviously haven't read much on this forum...of COURSE "health" is FAR more than just what we eat.