J.S.
My friends baby did that too. She googled it and found that it can come from mothers who over produce milk. Her little guy was getting too much of the foremilk and not enough of the hind milk. So she switched to just feeding him from one side at a time and his poo went back to the seedy color. You could google it too and read about it. Isn't it funny how when you have kids how much you talk about poo! :)