Is spinach a blood product?
Most patients suffering from anemia are caused by iron deficiency. At this time, there are often people, even medical staff, who kindly advise the patient: "Spinach contains a lot of iron. You should eat more spinach." In fact, this is a wrong view.
First, the iron content of spinach is not very high. It contains only 2.5 mg of iron per 100 g of vegetables. The highest iron content in foods is fungi and algae foods. Iron content per 100 grams of black fungus and dried mushrooms is as high as 185 mg and 32 mg, respectively. Pigs, cattle and goat livers also have high iron content, with 6.6 to 25 mg iron per 100 g. These are all higher iron contents than spinach.
In addition, the more important point is that: Spinach contains oxalic acid, it is easily combined with iron, calcium and other metals, resulting in the body can not absorb oxalate. Scientists have shown that iron in spinach can be dissolved and absorbed in the human intestine by only 1%. The remaining 99% of iron is combined with oxalic acid to form a water-insoluble complex, losing its nutritional value. If spinach is eaten with other foods high in iron, the folic acid in spinach will bind to iron in other foods and affect the body's absorption of iron in these foods.
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