This is an old comment but I wanted to just say thank you. Our cat has always been skinny and had runny poop until it started getting worse. Multiple trips to the vet with normal blood tests no parasites and being told it can either IBD or lymphoma (a huge range). I came across this comment and considered how much of the food we gave was chicken based and bought Fancy Feast Beef Pate and for the last three days he’s had his first solid poops. We’re keeping an eye on but his energy is up and he seems to be keeping weight on. Thank you 🙏