I have heard from doctors that eggs from free range chickens are way better for you and especially good for people with depression. There is something the hens get from eating wild things that gets concentrated in the eggs. I don't know that they've isolated any specific substances but there have been studies done and the evidence is pretty solid. I don't know if fertilized eggs make any difference but the organic fed and free range diet of the hens make magical medicine eggs. They definitely taste much better. So you are doing it right for sure. We used to get them free from a neighbor who always had more eggs than they could eat. Unfortunately they moved and we did too. I'd love to be able to get those eggs again. Someday when we can move back into the country we will.