We used to use Iams, which was great for Dakota and occationally Destiny, but it messed with Destiny occationally and gave Sierra a lot of Diahrea! So, before knowing that Iams tested on animals, we switched to Nutro Max and it's been working wonderful for all three of ours girls. It's about the same price as the Iam's but it looks to be a lot more natural and better for them. So, we're very happy with that!