Lean Red Meat: Beef and lamb are rich sources of heme iron, which is easily absorbed by the body. Make sure the meat is cooked and free from any added seasonings or spices.
Organ Meats: Liver, in particular, is a highly concentrated source of iron. It's advisable to feed liver in moderation because of its high vitamin A content.
Fish: Certain fish, like canned sardines or mackerel, provide not only iron but also omega-3 fatty acids, which are beneficial for a dog's overall health.
Poultry: Chicken and turkey are good sources of iron, especially when cooked without added oils, seasonings, or bones.
Commercial Dog Food: Many high-quality commercial dog foods are formulated to meet a dog's nutritional needs, including iron.