1. Tofu should not be eaten with foods with high oxalic acid content. The reason is that tofu contains high calcium, and calcium and oxalic acid can produce insoluble or unacceptable calcium oxalate, which affects the absorption of calcium. For example, spinach, bamboo shoots and amaranth are all high in oxalic acid, but it is still possible to change the cooking method. If spinach, bamboo shoots and other foods with high oxalic acid content are cooked first, most oxalic acid can be removed and its influence can be reduced.

2. Tofu had better not be cooked with spinach. Spinach is rich in nutrition and is known as the "king of vegetables", but it contains a lot of oxalic acid, which is about 300 mg per 100 g of spinach. Tofu contains more calcium. If both enter the human body at the same time, chemical changes can occur in the human body to generate insoluble calcium oxalate. Stones in the human body are deposited by insoluble calcium salts such as calcium oxalate and calcium carbonate, so spinach and tofu should not be eaten together.

Extended data:

Pay attention to eating tofu:

1, do not eat those with weak renal function.

Tofu is rich in high-quality plant protein, which will be metabolized into nitrogen-containing compounds and excreted by the kidneys. The elderly or patients with weak renal function, such as kidney disease, have a decreased ability to excrete waste, so eating high-protein tofu is bound to increase the burden on the kidneys and endanger health. At the same time, the calcium in tofu is easy to precipitate in the body, which is easy to cause kidney calculi.

2, gout patients do not eat.

There are a lot of purine substances in tofu, which will increase the purine content in the body if eaten. Patients with gout have abnormal purine metabolism. Eating tofu with high purine content will aggravate the disorder of purine metabolism and eventually aggravate the condition of gout.

3. Patients with iodine deficiency should not eat for a long time.

Tofu contains saponin, which can prevent arteriosclerosis, but it will accelerate the excretion of iodine. Iodine deficiency in patients with iodine deficiency. Long-term consumption of tofu will inevitably lead to continuous iodine deficiency in their bodies, which is easy to cause or aggravate iodine deficiency.

4. Don't eat while taking tetracycline drugs.

Tofu is rich in calcium and magnesium, and tetracycline drugs contain ingredients that can react chemically with calcium and magnesium. Tofu should not be eaten during taking tetracycline drugs, so as not to change the composition of tetracycline drugs and ultimately reduce the efficacy.

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