Like others said, there is no 'healthiest dog food'. Kai did wonderfully on Raw and I intend to switch him back to raw after a vet visit so we could make a specific diet for him to allow him to lose some weight. Right now, he's on Innova. I love their ingredients. Also, Kai's tried wellness before. He seems to know what's good for him. He's only volunteered to eat Nutro Max, Wellness, Canidae, Innova and Royal Canin. He HATES Eukanuba. Also I have a confession, Kai would never eat his Eukanuba so I tried a kibble. After trying it, I knew why he didn't like it. It tasted gross. When we bought wellness, it smelled sooo nice. I didn't even have to try it since he loved it.