Lab has had runny tummy for a week or so now and vet wants me to put him on Hill I/D as it is bland and for sensitive stomachs. He is currently on JWB plus a bit of Nature diet. He had been fine but when the runs started and they had a sample tested the vet diagnosed Giardia and we had 3 days of Panacur but no improvement. Happy to go with vet advice usually but just wondered if I am being sold something that they get commission on?