No matter what medicine, there is no best and fastest. Iron deficiency anemia can supplement some organic ferrous gluconate, eat more iron-rich foods, such as animal liver, red dates, medlar, and some fresh fruits and vegetables. Usually it is best to eat in an iron pot. Just focus on all aspects. Iron supplementation will be the best and fastest. At the same time, if you have chronic blood loss, you must pay attention to the examination and correct it as soon as possible.