Well, now you made me go read the ingredient list on my dog food, to see that peas are the 3rd listed ingredient. Hmmm. Dr Doug, is DCM pretty easy to diagnose? Clearly, my 2 active guys do well on their food; and with Jimmy being diabetic, I would prefer to stay with the Diamond Naturals Adult Light. Is this something I can put in the back of my mind, and at the first sign of lethargy, diminished appetite, etc - take them to my Vet? I also noted that the breeds prone to this seem to be large dogs - would this advisory pertain more to other large breeds NOT included in the "prone" list? (Jimmy and Ben are mini-AussiePoos)