I have a 15 mth old female Shepherd and an 11 yr old male Siberian Husky with bad arthritis. I have heard that a raw diet will help older, arthritic dogs. I am considering the Darwin Raw due to the fact I can order in bulk with a bit of a discount and they ship right to your door. Has anyone tried this brand. They are based out of Washington state which makes it convenient for me in Northern California. Everything I have read so far has been positive.