Animal Pak has so much more than you need. I do feel like it helped digested my food much better, but 12 pills or whatever is in the bag was just too much for me i might try them again at some point i just couldnt stand the number of pills.
Dude DX7 -- 2 small caps and it's better than Animal pack.
And yes, there will be things that are "kidney friendly" but in the case of the kidneys, getting enough water is simply the best thing you can do. The liver is different. It needs more specific protection since it filters the chemicals and in the case of orals, is put under additional strain.