1. Rusting of iron pans will have adverse effects on the human body and be harmful to the human body.

2. The iron pot rusts because the iron in the iron pot reacts with oxygen in the air to form ferric oxide. After ferric oxide is ingested by the human body, it reacts with our stomach acid to form ferric chloride. Free iron ions are not harmful to the human body, but can also serve as iron supplements for patients with iron deficiency anemia. If consumed in large amounts, it can cause damage to the liver. Iron that is not absorbed under normal circumstances is generally excreted with the feces. Therefore, if the iron pot is rusty, a small amount of intake should not be harmful to the human body. However, it is still recommended to clean the rust as much as possible before cooking. Otherwise, frequent use of rusty food will affect the health of the liver.