Our family includes 3 dogs and 2 cats. We feed them Answers Raw and they are thriving. From reading lots about the grain-free diets and DCM, some are saying that when peas, lentils, chickpeas, etc. are added to dog food in place of rice, barley and other grains, the protein in those vegetables increases the overall protein amount in the food so that pet food manufacturers lower the meat content to control costs. This vegetable protein doesn’t contain taurine which meat protein (especially animal heart and other organ meat does). This leads to an inadequate level of taurine in these grain free formulas. If these formulas are the only food the pet gets then it isn’t taking in enough taurine and some develop DCM. I expect more looking into this issue will, maybe, clarify the reason but be skeptical about information and thoroughly research your options.