The more iron in the body promotes free radical attack on cells, which accelerates aging. Studies have shown that men with too much iron in their blood have twice the risk of heart machine infarction as men with a bottom of iron. Another study showed that the higher the level of iron in the blood, the greater the risk of cancer, especially bladder and esophageal cancer.
The upper limit of ferritin value in the human body is 400, and serum ferritin is the most sensitive indicator for checking iron deficiency in the body. Liver ferritin accounts for about 1/3 of the iron stored in the body, and ferritin in the blood circulation is cleared by the liver cells, so liver disease can cause elevated serum ferritin. In addition, malignant tumor cells synthesize increased amounts of ferritin, so ferritin is also one of the markers of malignant tumors. Elevated ferritin: the reason is that the source of ferritin is increased or there is an obstacle to its clearance. For example, when suffering from liver cancer, lung cancer, pancreatic cancer, leukemia, etc., the synthesis of ferritin by cancer cells increases, which elevates serum ferritin. When suffering from liver disease, the function of liver cell damage decreases, which will also make serum ferritin rise
Excessive iron is poisonous, can cause vomiting, diarrhea and intestinal damage people often consume foods with high iron content are prone to throat cancer and stomach cancer and other diseases. There is a direct causal relationship between high levels of iron in the body and the risk of developing tumors.
Foods high in iron, such as pig liver, beef kidney, beef heart, beef liver, fish, lean meat, egg yolks, oysters, nuts, beans, asparagus, brewer's yeast, oats, and beets, all contain iron. So minimize your intake of these foods.
It's best not to eat with VC-rich foods, because VC will help you absorb more iron! E.g. strawberries, kiwis.