4. Grain-Free Diets
Grain-free diets have surged in popularity, but many veterinarians are concerned about their safety. Recent studies have linked certain grain-free pet foods to canine dilated cardiomyopathy (DCM), a potentially fatal heart condition. The FDA has even launched an investigation into these potential dangers. Unless your vet specifically recommends it, a grain-free diet may do more harm than good. For more details, check the official FDA Grain-Free Diet Alert.