I have a 2 year old male German shepherds mix who has really bad allergies which has led to skin issues and chronic ear infections. We have tried Purina Pro Plan sensitive skin and stomach food but didn’t help at all. I decided to switch to Diamond Naturals grain free skin and coat (salmon and potato) because I heard grain free is good for allergies. After 2 weeks of eating the new food, his skin has improved so much! But now reading about the FDA stuff about grain free leading to DCM in large breed dogs and having second thoughts. Wondering if y’all had thoughts about Diamond naturals food or have any other food recommendations for him?