Foods with high iron content include animal liver, animal blood and seafood. 1. Animal liver, such as pig liver, chicken liver, beef liver, sheep liver, these animal offal often contain very high amount of iron; for example, every 100 grams of beef liver contains about 6.6mg of iron. 2. Animal blood, such as blood tofu, every 100g blood tofu often iron content of about 8.7mg. 3. Seafood, such as shellfish, oysters, clams, mussels, this kind of high iron content, per 100 grams of clams can be up to 10.9mg of iron. There are also vegetarian egg yolks, vegetables in the soybean products, soy made of food and other iron content is also very high. Iron is an essential component of human cells, but the amount of this effective substance in food is limited and cannot achieve the purpose of treating diseases. If the iron deficiency is serious, you should consult a doctor to determine the cause of the disease and then give targeted treatment.