Tofu and tofu products have a higher protein content than soybeans, and tofu protein is a complete protein, not only contains eight essential amino acids, and its ratio is close to the human body needs, nutritional efficiency is higher. Tofu also contains fat, carbohydrates, vitamins and minerals. Chinese medicine theory, tofu taste sweet and cool, into the spleen, stomach, large intestine, with the benefit of gas and in the middle, the birth of the fluids and moist dryness, heat detoxification effect, can be used to treat the red eye, thirst, relief sulfur, soju poison, and so on. Although tofu is good, eat more also have disadvantages, excessive will also be harmful to health, resulting in the following diseases. Promote kidney function decline. Under normal circumstances, people eat into the body of plant protein through metabolic changes, and finally most of the nitrogenous waste, by the kidneys out of the body. In old age, the kidney’s ability to excrete waste decreases, at this time if you do not pay attention to diet, eat a lot of tofu intake of too much plant protein, will inevitably lead to an increase in the generation of nitrogenous wastes in the body, aggravate the burden on the kidneys, so that the kidney function to further decline, is not conducive to good health. Cause indigestion. Tofu is extremely rich in protein, once consumed too much not only impede the body’s absorption of iron, but also prone to cause protein indigestion, bloating, diarrhea and other discomforts. Promote the formation of atherosclerosis. U.S. medical experts pointed out that soy products are extremely rich in methionine, methionine can be converted to cysteine under the action of enzymes. Cysteine will damage the endothelial cells of the arterial wall, easy to make cholesterol and triglyceride deposition on the arterial wall, promoting the formation of atherosclerosis. Leads to iodine deficiency. The soybean used to make tofu contains a substance called saponin, which not only prevents atherosclerosis, but also promotes the excretion of iodine in the human body. Prolonged overconsumption of tofu can easily cause iodine deficiency, leading to iodine deficiency disorders. Promote gout attacks. Tofu contains more purine, purine metabolism derangement of gout patients and patients with increased blood uric acid concentration more food easily lead to gout attacks, especially gout patients to eat less. It can be seen, although the tofu is good, should not eat every day, do not eat too much. The elderly and kidney disease, iron deficiency anemia, gout, arteriosclerosis patients should control the amount of food. Chinese medicine, tofu is cold, cold stomach and easy diarrhea, bloating, spleen deficiency and often spermatorrhea kidney deficiency should not eat.