We feed most animals grain - hey even dog food is mainly corn - most animals are not designed to eat grain and the result is in their meat and in your food.
Here is what the difference really is
Amplify’d from thehealthyskeptic.org
Read more at thehealthyskeptic.orgPasture-raised animal products and wild-caught fish: as nature intended
While the reasons to eat pasture-raised animal products and wild-caught fish span social, political, economic and nutritional considerations, I’m only going to focus on nutritional factors here. For a more comprehensive discussion, check out Eat Wild.