This is where we are with Buddy - he is a stinky bum. I don’t want to give him anything with too much fat in case it gives him pancreatitis, but then we find his skin gets really flaky, so we have just started adding a little oil supplement to his Chappie. Chappie kibble was suggested by his vet after a few bouts of diarrhoea (related to him eating his own poop on a few different occasions). We have tried him on both the chicken and the beef Chappie, and while we could be imagining it, I think he’s slightly better on the beef. I posted on here just before Christmas about his tummy issues, and it was someone who is really experienced with greyhounds who suggested that he could be allergic to chicken. I thought the same as you about it being pretty much the go-to food for tummy upsets but his poo gets a slimy film on it when I’ve given him chicken. So the answer is - I don’t know if he is, but he seems to marginally better on beef kibble so we will try to avoid chicken from now on. I was initially sceptical that Chappie would be good for him but his coat is still nice and shiny and he seems to like it. Someone else commented recently that greyhounds do well on mid-price range kibbles so I have to put my food snobbery behind me and really, just accept that if it works for him (doesn’t give him the squits), don’t change it unless I have to!
We also gave Buddy YuDigest last year which did absolutely nothing for him. We now sprinkle a powder probiotic on his food three times a week called Sustain. It was also recommended by the vet. We also add yogurt to his morning meal (about 2tbsp) and kefir drink to his tea (free pour - about 50ml). I’m not sure that they are doing anything for him but he likes them so we are sticking with it.
We find that the first poop of his walks is always solid. They become softer with each poop and I think it’s to do with how quickly it moves through his system and how much water is absorbed from it. This seems to be Buddy’s base line so if he deviates much from that, then we look into what could be upsetting him but for now, this is his diet. Supplemented by many treats - particularly now I’ve discovered there’s a raw food shop in walking distance from my house!