I've been feeding my 2 dogs a raw diet for almost 5 months. They really like it, but I thought they would be doing better by now, especially the older dog (6 years old). I recently stumbled upon a website with a vet talking about a study she did with dogs on raw diets and high quality kibble and how the dogs on a raw diet, in the long term, didn't do as well as the others. She also talked about thyroid imbalance with a raw diet. So now I'm worried I'm making my dogs sick and am not sure what to do. I'm thinking about switching to a high-quality dry food. Any advice or suggestions?