Not edible.

Expired food, high-protein food is susceptible to microbial contamination of corruption and deterioration, resulting in a putrid odor. The putrid smell mainly comes from the decomposition products of protein and fat, such as indole, sulfide, mercaptan, fecal odorant, cadaverine, aldehydes, ketones and bacterial toxins, etc., which can lead to human poisoning.

In addition to the putrid smell, this kind of food corruption and deterioration is also manifested in the surface of the sticky, green color, etc.. In order to avoid corruption and spoilage, this kind of food should be eaten in time after purchase, or put in the refrigerator or frozen, once the expiration date is spoiled, it can not continue to eat.

Extended information:

Tofu is extremely rich in protein, and consuming too much of it at one time not only hinders the body's absorption of iron, but also tends to cause indigestion of protein, bloating, diarrhea, and other unpleasant symptoms. Under normal circumstances, people eat into the body of plant protein after metabolic changes, and finally most of the nitrogen-containing waste, by the kidneys out of the body.

People to old age, the kidneys excretion of waste capacity decline, at this time if you do not pay attention to the diet, a large number of eating tofu, intake of excessive plant protein, will inevitably make the body generated nitrogenous waste increase, aggravate the burden on the kidneys, so that the kidney function to further decline, is not conducive to good health.

Soybeans contain saponin, which can prevent atherosclerosis and promote the excretion of iodine in the human body. Long-term overconsumption of tofu can easily cause iodine deficiency, leading to iodine deficiency disease.

Tofu is rich in nutrients, but dietary fiber is relatively lack of, eating tofu alone may bring the trouble of constipation. And bok choy and fungus are rich in dietary fiber, just to make up for this shortcoming of the tofu. In addition, fungus and bok choy also contain many antioxidant components that can improve immunity and prevent disease, with tofu consumption, the role of anti-disease better.

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