FDA announces Dog Foods that can cause heart failure UPDATE

As a possible cause that is under investigation is the nutrient Taurine. It is not considered an essential nutrient for dogs, but is for cats. DCM is common in cats (compared to dogs) and is treated with taurine.

These dogs have been treated with taurine as well. There are a few breed that have DCM (not related to the food issues) and they respond in many cases to taurine supplementation if diagnosed before serious permanent heart damage happens.