I haven't used Nu-Vet before, but I do purchase supplements. Because I home-cook, I supplement Katie's food with BalanceIt. I use Probiotics Max from Nature's Farmacy, and it's excellent. Wylie's Mom recommended it to me. They also make what appears to be a great overall supplement. Both of these come in smaller and larger sizes.
https://naturesfarmacy.com/store/pro...iotic-max-1lb/ DOGZYMES® Ultimate – 1 Pound » Natures Farmacy Inc.