You must blanch the spinach before you cook it. Among all vegetables, spinach has the highest oxalic acid content. Oxalic acid is easy to combine with calcium to form insoluble calcium oxalate in human body's eating ability, which can not only be absorbed and utilized by human body, but also hinder human body's absorption of calcium. After blanching, most oxalic acid in spinach will be destroyed and released.
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Spinach extract has the effects of promoting the proliferation of cultured cells, resisting aging and enhancing youthful vitality. China folks mash spinach to get juice, wash your face several times a week, and use it continuously for a period of time, which can clean skin pores, reduce wrinkles and spots, and keep your skin smooth. The protein quality of spinach is higher than that of other vegetables, and it contains quite a lot of chlorophyll, especially vitamin K, which is the highest in leafy vegetables (mostly in roots) and can be used for adjuvant treatment of epistaxis and intestinal bleeding. The principle of spinach enriching blood is related to its rich carotenoids and ascorbic acid, which are important for health and enriching blood.
Spinach is rich in carotene, vitamin C, calcium and phosphorus, as well as a certain amount of iron, vitamin E, rutaecarpine, coenzyme Q 10 and other beneficial components, which can supply a variety of nutrients to human body. Containing iron, it has a good auxiliary treatment effect on iron deficiency anemia.
Baidu encyclopedia-spinach