Grain-free dog food linked to heart problems in pets is puzzling situation for FDA. The FDA is no longer naming grain-free pet food brands that might be associated with DCM. The FDA is looking closely at legumes like dried beans, chickpeas, lentils, and peas as a possible culprit. “Legumes are in grain and grain-free diet. But there appear to be more legumes in grain-free diets,” said Dr. Andrew Empel, veterinarian. “Unfortunately, they don’t contain taurine which is essential for heart health,” said Dr. Morgan. The FDA has not requested any recalls and it is not taking any compliance or enforcement action. Instead, it’s asking for patience, time for more study.