I used to feed my dogs Purina Proplan 20 yrs ago and when I noticed my Cocker Spaniel started to itch around the time that grain-free food b/c popular, I switched her over to them. In 2013, she was 11 and we had a new lab puppy and I did research and fed them them, the best food I thought at the time which was Orijen and Acana. Because it was so high protein, I then switched my Cocker over to Fromm. My Cocker did develop a heart murmur in the last 2 yrs of her life, so not sure if it was from having been fed grain free or of her age, but I have read the studies and there definitely is something going on. For me, having had a Dane with DCM, I don’t wish that on any dog, so I switched my lab and new Cocker puppy off grain free completely. Ironically, thinking of going back to Purina Proplan. What I do notice is that chicken usually causes itchiness, while fish based does not in many dog foods. Lamb i usually a good choice as well, but many dogs don’t always like it.
