Eating a small amount of dirt from natural environments may be beneficial for the microbiome, potentially providing humic and fulvic acids.

“I will eat a little bit of the dirt like a small amount of the dirt you know you'll say oh you're gonna get a parasite yeah well I don't think I'm small amount of dirt is gonna give me anything terribly bad but there's humic acid in phobic acid making supplements of now which you can just get from eating reasonable dirt that's not in a city and polluted and exposure to some dirt is probably evolutionarily consistent and was probably a part of our microbiome and stuff”