It's always a headache to figure out the healthiest food to feed your pets, unless you're into making their food by hand. I thought about it for a hot minute, but then I remembered, I have a job and a house to remodel! This stuff has no weird fillers like potash or gluten, and though it does have some vegetable ingredients, it's mostly pure animal protein. Sure, it's pricey, but if I can extend my furkids lifespan - and reduce their health issues/vet bills - by spending more for better food, it's worth it. Maybe it's all a crapshoot, but it makes me feel better buying this stuff.
Good luck on your own odyssey. I hope you find your kibble nirvana without going broke!