I remember when I was a very young child - more than half a century ago - getting into trouble for eating dirt. I was amused more recently to hear about my nephew doing the same thing. It seems, from my point of view, to be instinctive. I wonder why?
Hydrogen ions are edible, although usually dissolved in water. Hydrogen ions existed before oxygen or water
Yep, I ensure I ingest a healthy amount of plain old-fashioned protons. Surely among nature's most ancient foods.
I don't like them, they taste sour: https://youtu.be/FSYE1T5d9jc?si=jQP90-q7QAHnrcJt
Don't forget dirt - https://en.wikipedia.org/wiki/Geophagia#Humans
I remember when I was a very young child - more than half a century ago - getting into trouble for eating dirt. I was amused more recently to hear about my nephew doing the same thing. It seems, from my point of view, to be instinctive. I wonder why?
Bored? Low on minerals? Too many parasites?
Dogs do this instinctively too when they might need something from the dirt.
don't little kids sometimes eat play-doh, bugs, crayons, etc? new experiences/curiosity i'd imagine