1, cause indigestion: tofu is rich in protein, one time to eat too much not only impede the body's absorption of iron, and easy to bloating, diarrhea and other symptoms.

2, prompting the decline of kidney function: people in old age, the kidney's ability to excrete waste declined, a large number of consumption of tofu, intake of excessive plant-based protein, will make the body generate more nitrogen-containing wastes, aggravate the burden on the kidneys, so that the kidney function decline, is not conducive to physical health.

3, contribute to the formation of atherosclerosis: soybean products are rich in methionine, under the action of the enzyme can be converted to cysteine, cysteine will damage the endothelial cells of the arterial wall, easy to make the cholesterol and triglyceride deposition in the arterial wall, contribute to the formation of atherosclerosis.

4, leading to iodine deficiency: soybean containing saponin substances, not only to prevent atherosclerosis, but also to promote the excretion of iodine in the body. Long-term overconsumption of tofu can easily cause iodine deficiency, leading to iodine deficiency disorders.

5, prompting gout attacks: tofu contains more purine, purine metabolism derangement gout patients and patients with increased blood uric acid concentration of more food is easy to cause gout attacks, especially gout patients to eat less.