Tofu is rich in protein, calcium and lecithin, which is very popular with everyone. With the extension of storage time, tofu bought in the market may continue to breed pathogens such as mold and bacteria. If it is not killed by scalding, stewing and other high-temperature cooking before eating, it is easy to cause digestive tract infection, gastroenteritis, nausea, vomiting, abdominal pain, diarrhea and other symptoms, so it is safer and more reassuring to eat tofu after cooking. It should be noted that tofu is good, but people who have suffered from some diseases in the past need to eat tofu carefully. For people with renal insufficiency, it is better not to eat. People with elevated blood uric acid or gout should also eat less tofu, otherwise it may aggravate symptoms such as joint pain.