Keep in mind that most previous studies had never separated processed meat (such as hot
dogs, bologna, lunch meats with chemical additives, etc) vs unprocessed meats (such as a
healthy grass - fed steak, pasture - raised pork tenderloin,
grass - fed burger, wild game meats, etc) in investigating the relationship between meat
eating and heart disease.
If your
dog is one that simply likes to graze, but is
healthy and happy, just make sure the
grass he's
eating hasn't been treated with chemicals or pesticides which actually CAN be quite harmful for Fido.