Vegetables and fruits supplemented with iron are: auricularia auricula, kelp, soybean, sesame, spinach, laver, celery and shepherd's purse. \x0d\ Common iron supplements in daily life include animal liver and kidney; Followed by lean meat, egg yolk, chicken, fish, shrimp and beans. There are alfalfa, spinach, celery, rape, amaranth, shepherd's purse, day lily, tomato and so on. Apricots, peaches, plums, raisins, red dates, cherries, etc. contain more iron in fruits, walnuts in dried fruits, and iron in others such as kelp, brown sugar and sesame paste. Usually, wok cooking is beneficial to iron absorption. \x0d\ Iron is the main substance to sustain life, to produce heme and myoglobin, and to promote vitamin B metabolism. Most of the iron in the human body is used to make heme. Heme is circulated and reused when blood cells are replaced with new cells every 120 days. Protein-bound iron is stored in the body, while tissue iron (found in myoglobin) is stored in a very small amount.