Dear Randy And Alana: My Son Eats Everything

Trying to help solve the world's problems one email at a time, it's Dear Randy and Alana.  If you have a question, email usDear Randy and Alana,

My 3-year-old son EATS everything! If he sees it on the ground he picks it up and starts to eat it – is this just a phase or do I need to intervene?

Jessica 

Do you have advice for Jessica?