Spinach is rich in protein, carbohydrates, fat, carotene, as well as a variety of vitamins and minerals. Eating spinach can supplement all kinds of nutrients the body needs.
But you can’t eat raw spinach. Says Lucia Garcia, a health nurse.
Spinach contains a lot of oxalic acid, 100 grams of spinach contains about 750 mg of oxalic acid.
If you eat raw spinach, a large amount of oxalic acid enters the gastrointestinal tract, and oxalic acid will combine with calcium to form calcium oxalate, which is relatively insoluble, thereby affecting the body’s absorption of calcium.
Although some water-soluble vitamins in spinach will be lost during the cooking process, such as heating for 30 minutes, vitamin C will lose 40% to 50%, but you can only eat cooked spinach, after cooking, most of the oxalic acid will disappear.