Chicken is a versatile meat that can be cooked numerous ways to achieve different flavors.
You don't need to ever eat liver to get your daily dose of iron; many foods, including meat, poultry, fish and vegetables contain iron. Liver does serve as an excellent source of dietary iron, but you can easily meet your iron needs without ever eating it.
Then you can make up your own mind on how much & how often you want to eat liver as part of your diet. here's a couple of examples from the database; one cooked slice of veal liver (80g); Vitamin A 56447 IU, B12 67.7 mcg, Copper 12.0 mg; one cooked turkey liver (83g); Vitamin A 62530 IU, B12 48.3 mcg, Copper 0.3 mg