1. Preserved eggs A certain amount of lead is needed to make preserved eggs. Eating too much can cause lead poisoning and calcium deficiency.

2. Stinky tofu Stinky tofu is easily contaminated by microorganisms during the fermentation process. It also contains a large amount of volatile base nitrogen and hydrogen sulfide. These are putrefactive substances that decompose protein. Eating too much is harmful to the human body.

3. MSG intake per person per day should not exceed 6 mg. Excessive intake will increase the glutamic acid content in the blood, limit the use of necessary calcium and magnesium, and may cause short-term headaches, nausea and other symptoms.

It can also have adverse effects on the human reproductive system.

4. Instant noodles contain food colorings and preservatives, which are not good for your health if eaten regularly.

5. Pork liver 1,000 grams of pork liver contains more than 400 mg of cholesterol. Too much cholesterol intake can cause arteriosclerosis and aggravate cardiovascular disease.

6. Roast beef and mutton During the smoking and roasting process, harmful substances such as benzopyrene are produced, which are cancer-causing substances.

7. Pickles If pickles are not pickled well, they will contain carcinogen nitrite amines.

8. The alum in fried dough sticks is an inorganic substance containing aluminum. If you eat fried dough sticks every day, it will be difficult for the aluminum to be excreted by the kidneys, which will poison the brain and nerve cells and even cause Alzheimer's disease.