Aspect 1: Animal foods are high in iron. Beef is a meat with high iron content, providing 1 mg of iron per gram. Pork liver is a high-grade raw material containing iron, and it is the most highly regarded blood-enhancing product among the people. Chicken is also a widely cooked bird meat and contains about 1.5 mg of iron per 100 grams; mutton is one of the meats that nourishes the kidneys and warms the stomach, containing iron per 100 grams.