The human body is a delicate combination of different substances, and its normal operation depends on the balance of various substances. Too much or too little of either substance will cause disorders in the organism. All human nutrition comes from food, and some toxic substances can be ingested unknowingly. Therefore, here are some foods that are better to eat less.

1. Preserved eggs

Some operators add heavy metals such as lead and copper to the dipping solution to improve the stability of preserved eggs. However, if excessive lead or copper is used during the production process, heavy metal residues will be left in preserved eggs, which will affect the health of consumers. Lead can damage the nervous system, hematopoietic system and digestive system, and have a serious impact on children's physical and intellectual development.

Preserved egg and lean meat porridge is loved by the elderly because of its thick texture, smooth taste and easy digestion. However, the elderly cannot eat preserved egg and lean meat porridge often.

Beware of preserved egg poisoning: The bacteria that contaminate preserved eggs are mainly Salmonella, which enters the human body with preserved eggs and causes inflammation in the intestinal membrane. After the fission of the bacteria, highly toxic endotoxins are produced. Causes symptoms of poisoning in humans.

2. Stinky tofu

Stinky tofu is easily contaminated by microorganisms during the fermentation process. At the same time, it will volatilize a large amount of base nitrogen, hydrogen sulfide, etc., which are decomposed by proteins. Corruptive substances are harmful to the human body.

3. MSG

The scientific name of MSG is sodium bisulfate. Its main component is glutamic acid. There is no harm in eating it in moderation. However, some research reports have pointed out that excessive use of MSG may cause symptoms such as dry mouth and tongue, numbness or headache, nausea, rapid heartbeat, and hot and numb neck. It may also inhibit bone growth and affect development.

4. Instant noodles

Instant noodles contain pigments and preservatives that are harmful to the human body. Regular consumption will affect your health. Synthetic pigments are mainly made from aniline dyes separated from coal tar. The harm of synthetic pigments to the human body includes general toxicity, diarrheagenicity, mutagenicity (gene mutation) and carcinogenicity. Most of the preservatives currently used are artificially synthesized, and excessive use will cause certain damage to the human body.

5. Pickles

If pickles are made improperly, the carcinogen amine nitrates will be hidden in the vegetables. These substances are often in contact with the gastric mucosa and will affect the integrity of the mucosa.

6. Fried dough sticks

The alum in fried dough sticks is an inorganic substance containing aluminum. If eaten regularly, it is difficult to be excreted by the kidneys, which in turn can be toxic to the brain and nerve cells, and even cause Cause Alzheimer's disease.