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.
Since the largest amount of copper that can be consumed regularly without the risk of toxicity is 10,000 micrograms daily, it's best to eat beef liver only occasionally, and in small amounts.