Having a bully really is quite a investment! .I've learned that myself w Brie. I'm not a food expert but I've read that grains are a huge allergen to bullies so grain free is a def good choice. poultry n salmon can also be allergy causing, but if Chunk has no issues w salmon then the food could be ok. I'm sure ppl w a lot more insight and knowledge will pop back here and give their feedback. Chunk is so cute!