Can heavy metals be excreted from the body through metabolism?

The answer is that heavy metals can be excreted through metabolism. First of all, it is necessary to correct the misconception that humans have not been exposed to heavy metals in the process of evolution. Heavy metals are widely distributed in the soil, many heavy metals are still essential trace elements for the human body, and plants rooted in the soil have a fairly complete mechanism for detoxification of heavy metals.

Even before industrialization brought about widespread environmental pollution, human beings could be exposed to harmful doses of heavy metals because they were in the food chain.

, heavy metals enriched from the downstream food chain can be continuously ingested through bioconcentration. This enrichment can lead to an astonishing amount of enriched substances in organisms with higher trophic levels as the trophic level increases. Perhaps the most famous example in history is the well-known synthetic pesticide DDT, whose inventor is Miller.

He won the Nobel Prize in 1948.

But it was a product that had a lot of aura at the time that was subsequently banned worldwide. In the 1960s, scientists discovered that DDT is very difficult to decompose in the environment and can accumulate in animal fat, and it has even been detected in the blood of Antarctic penguins. Silent Spring by Rachel Carson

The book has an important role in raising public awareness. It is estimated that the metabolic half-life of DDT in living organisms is 8 years; DDT in birds can cause soft-shelled eggs to hatch, especially carnivorous birds at the top of the food chain, such as the national bird of the United States.

The bald eagle is almost extinct because of this. Moreover, DDT is highly toxic to fish, so since the 1970s, most countries have banned or restricted the production and use of DDT. Because the accumulation of DDT is reversible, DDT in Lake Michigan fish in the United States has now been reduced by 90% after the disabling of DDT.

The DDT ban also gave birth to environmental protection in China. It's a bit off-topic, back to the topic, citing such a chestnut, in fact, to show that even without the impact of environmental pollution, humans can passively ingest heavy metals through bioaccumulation. Therefore, God said that people should have the ability to detoxify heavy metals, so people have the ability to detoxify heavy metals, and God sees this ability as good, so the design retains redundancy.

Heavy metals are usually defined as metals with greater density, and the main toxicity stems from the interaction of heavy metal ions with various enzymes in the human body, affecting human metabolism. This is because most of the heavy metals are excessive metal elements, which have a tendency to form complexes, and the proteins of the human body mostly contain amino groups, sulfhydryl groups, etc., which have strong binding force with heavy metals; The active center of many enzymes can form a stereocoordinated chelate, and the central element is easily replaced by a more binding heavy metal element, making the enzyme inactive. The human body itself contains heavy metal substances, some of which are still necessary trace elements, such as copper, zinc, selenium that is very hot in certain health products, etc., which often constitute the active center of enzymes.

When heavy metals are ingested, according to different chemical properties, they first combine with proteins and peptides in food and digestive juices, or react with anions to form precipitates, and most of them are excreted in feces and are not absorbed; The part absorbed by the body binds to plasma proteins, and part is detoxified in the liver and excreted in bile; Partially trapped by the renal tubules, it is excreted in the urine. However, the heavy metals that enter the blood often cannot be completely metabolized, and they often bind to their target organs in the process of moving with the blood circulation, such as organic mercury is lipophilic and often enriched in fat and brain; Cadmium ions are pro-bones and are deposited in the bones, and chronic poisoning leads to the famous "painful disease"; Mercury ions are renal tubules and poisoning often causes acute renal failure; Lead ions are also pro-bone, and so on. Once heavy metals are bound to the target organs, they are often difficult to excrete, and can accumulate for a long time and cause chronic poisoning, such as in Minamata disease patients, organic mercury is accumulated in the brain for more than 20 years before causing obvious poisoning reactions.

This question is too broad, and different heavy metals have different situations. If you want to ask if you can, heavy metals can be excreted from the body through metabolism. It's just a question of how much can be excreted and how long it takes.

Many heavy metals are poisoned by binding to enzymes in the body that interfere with normal biochemical reactions.

Or let the protein be denatured.

Because it is combined with the chemicals in the human body, it is naturally difficult to excrete from the body, and the speed of excretion is slow, but it does not mean that it can't. Heavy metals are widely present, and human beings can be exposed to harmful doses of heavy metals through bioaccumulation at the beginning of their birth, so human beings have evolved a mechanism for the detoxification of heavy metals, and long-term exposure to heavy metals in large doses will not cause obvious harm to human health. <>

Hello, you can drink more high-protein drinks such as milk, egg whites, and soy milk.

Soluble (soluble in water or acid) heavy metal salts will denature proteins, mistaken heavy metal salts will denature the proteins in the tissues of the human body and poison, if you immediately take a large amount of fresh milk or egg whites and soy milk, heavy metals and milk, egg whites, soy milk in the protein denature, so as to reduce the harm of heavy metals to the body. So, after ingesting heavy metal salts by mistake, you can drink some protein-rich drinks. Such as:

Egg whites, milk soy milk, etc.