I used to not understand this. I used to think if I was buying cage free eggs, I was doing better. But this is the truth. You want to be buying pasture-raised eggs. And the best is pasture-raised and organically fed. You won't find these in any "regular" grocery store. The last time I looked, they were close to $8 a dozen in Whole Foods. But you probably live near a farmer who is doing this. Try to find them!