According to the World Health Organization, anemia is diagnosed based on the amount of hemoglobin in the body, with different normal ranges for different ages and genders. Anemia can be diagnosed in adult women with hemoglobin below 120 g/L, and in pregnant and lactating women with hemoglobin below 110 g/L. Iron is an important component of hemoglobin, so iron deficiency is one of the most important factors causing anemia. In case of iron deficiency anemia, iron supplementation through daily diet is recommended, including black fungus, pine mushrooms, animal liver, nori, parsley, rape, mustard greens, eggs, oysters, lentils, scallops. At the same time, it is important to pay attention to eating less food that inhibits iron absorption, avoiding high-fat food, soy milk, alkaline food, and drinking less tea and coffee.