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.
However, excess proteins and fats in your diet can be harmful to your liver, causing a slowdown in the organ's processing output, a not unlikely occurrence if you consume excess amounts of red meat, which tend to be high in proteins and fat.