I'm embarrassed to say my first memory. I had forgotten it completely my mom showed me a picture.
When I was very young we had a concrete planter in the nice comfortable shade in the back yard. I can clearly remember scooping up handfuls of dirt with my pudgy two-year-old fingers and scooping it all into my mouth. Yes, evidently I would willingly eat dirt as a child and my loving mum was too busy taking a picture instead of grabbing me and telling me to knock it off.