Can't directly eat people's trace elements, such as copper, magnesium, sodium, etc. They all exist in the form of ions, just like sodium chloride (salt) can be eaten, but sodium cannot be eaten. Have you ever seen sodium react with water? If you have seen it, you dare not eat it and burn you.

Oh, by the way, you mean, can something containing these elements be eaten? Of course, everything in the world is made up of elements. Talk about whether you can eat badly.