Soy sauce contains trace elements such as calcium and iron, which effectively maintains the physiological balance of the body. It can be seen that soy sauce is not only good in flavor and taste, but also rich in nutrition, so it is the first choice for people to cook. Although soy sauce is a condiment, some people should not eat more. For example: 1, patients with hypertension, coronary heart disease and diabetes should control soy sauce like salt. Because soy sauce contains sodium chloride, sodium glutamate and sodium benzoate, it is a dense source of sodium. 2, gout patients should pay attention to, soy sauce contains purine from soybeans, and many products have specially added nucleotides for freshness, so they must not be used more. 3. Soy sauce contains umami substances, so put less or no monosodium glutamate and chicken essence after using soy sauce. Especially fresh soy sauce, can replace all umami seasonings. Soy sauce, like salt, should be put later and less when cooking.

Many people like spinach. Spinach contains oxalic acid, especially round leaf varieties, which affects the absorption of calcium by human body after eating. Therefore, before eating this spinach, you must boil the vegetable water to reduce the oxalic acid content. 3. Raw spinach is not suitable for tofu, which hinders digestion and affects curative effect. After scalding with boiling water, you can cook it with tofu.

Matters needing attention

1, healthy people eat more spinach will indeed supplement a small amount of iron in the body, but people with anemia will lose iron faster if they eat more. (2) Oxalic acid and calcium salt contained in spinach can combine to form calcium oxalate crystals, which makes the urine color of patients with nephritis turbid, and the casts and salt crystals increase, which is not suitable for patients with nephritis and kidney calculi.