Folk say blood tonic is actually iron tonic, fish glue can be stewed with pig liver, animal blood and animal products, etc., which can effectively help to replenish iron. In nature, animal liver is one of the foods with the highest iron content, with each 100 grams of pig liver containing 23 milligrams of iron. In addition to animal liver, animal blood products are also very high in iron, as well as being low in calories, well digested, easily absorbed and relatively high in protein. In addition to this, all red meats, including pork, beef and lamb, are high in iron. If you need to replenish iron through food, you can use fish gelatin and these iron-rich foods together in a stew, which helps to replenish the body with the iron it needs. However, it must be clear that not all iron deficiency anemia can be improved by food, and if necessary, you should consult a doctor in time and take medication under the doctor’s guidance.