I just adopted Presley a 2 year old Weim. I absolutley love him, and I have been doing alot of reding about his dietary needs, and I was just wondering if anyone else adds : garlic, flax seed, fish oil, yeast or any other products to there dogs food for any reason or another.... Whether to help with Digestion, bones, coat... I don't want to just read articles from other people, I was hoping for ...