I have 3 Cavaliers and I have found that adding pre/probiotics and enzymes to their kibble/canned combo helps with their staining. I really only have 1 (my Ruby, Laverne in my pic on left) that has allergy related tear stains and she also gets anal glad issues sometimes. I’m not really sure what she’s got issues with, though. Normally, I do a rotation of kibble about every 1-3, 5 lb. bags and a rotation of canned every can or two. None of mine have them bad, though. I mostly feed grain free, but lately they’ve been eating Merrick Classic Sm. Breed kibble and it has grains.
