There are many foods that are bad for your health. 1. Preserved eggs (preserved eggs). A certain amount of lead is needed to make preserved eggs. Eating too much can cause lead poisoning.

2. Stinky tofu. Stinky tofu is easily contaminated by microorganisms during the fermentation process. It also contains a large amount of base nitrogen and hydrogen sulfide, which can decompose protein.

3. MSG, eating too much will increase the sodium glutamate content in the blood, causing short-term headaches, heartbeats, nausea and other symptoms. It also has adverse effects on the human reproductive system. The daily intake should not exceed 6 grams.

4. Instant noodles contain pigments and preservatives, which are harmful to the human body if eaten regularly.

5. Sunflower seeds. Sunflower seeds contain unsaturated fatty acids. Eating more will affect the function of liver cells.

6. Spinach. Spinach contains oxalic acid, which will combine with zinc and calcium in food and be excreted from the body, causing zinc and calcium deficiency.

7. Pork liver. 1 kilogram of pork liver contains more than 400 mg of cholesterol. Eating too much will cause arteriosclerosis.

8. Roast beef and mutton. Harmful substances will be produced when beef and mutton are smoked and roasted, which can induce cancer.

9. Pickled vegetables. During the pickling process, carcinogen nitrosamines are easy to appear, which can induce cancer.

10. Fried dough sticks. The alum in fried dough sticks contains aluminum. Eating too much aluminum can poison the brain and nerve cells, and even cause Alzheimer's disease.