I purchased Eukanuba dog food for my apple-head chihuahua when she was a puppy and despite her selective disposition, she loved it. I purchased it for the nutritional value it promoted, though I cannot be certain if it was successful since my dog was the one consuming healthy doses of the dry food. I did however, notice a nice sheen in her coat. While I didn't notice a change in my pup's breath, the one downside I can think of is the price of the bag. In spite of it, I am quite the animal enthusiast and I adore dogs, so while I wouldn't splurge for myself, I am always willing to spend a little more for my dogs. Thankfully, my little girl is 4 years old now and I have since then switched her food.