Does aluminum do any harm to the human body?

First, the harm of excessive intake of aluminum to the human body

Aluminum is not a necessary trace element for human body. Excessive intake of aluminum is harmful to human body.

1. Too much aluminum is bad for your bones. Speaking at the Aluminum conference in Toronto, Canada, Spencer confirmed that oral doses of aluminum-containing antacids over a long period of time can be dangerous to the bones of the elderly. Giving 30 milligrams of aluminum orally, three times a day, reduces the body's storage of phosphorus, leading to calcium deficiency. One of the reasons is that phosphorus and calcium are released from bones under the consumption and lack of phosphorus, and the excretion of phosphorus in feces and calcium in urine increases significantly. The other is that aluminum can form insoluble complex with phosphate in food, which reduces the amount of phosphorus absorption. Third, aluminum hydroxide is easy to form a complex with fluorine, which reduces the intake of fluorine in food by 50% and the deposition of fluorine in bones, resulting in relative fluorine deficiency, and fluorine is an important regulatory factor of mineral storage in bones. Because of the above reasons, long-term oral administration of aluminum hydroxide (even in small doses and intermittently) will cause the body to be deficient in calcium, phosphorus and fluorine, clinically observed reduction of urinary phosphate, high calcium urine, weakness, discomfort, bone pain, osteoporosis. Elderly people on low protein diets, fasting aluminium and alcohol poisoning are particularly susceptible. Once the kidney fails, the structure and function of the intestinal wall is abnormal, the permeability is increased, the intestinal wall's barrier to aluminum is lower, and the patient is subjected to dialysis. Due to the large amount of aluminum in the dialysate, more aluminum enters the patient.

2. Too much aluminum can cause brain damage. In recent years, too much aluminum has been linked to the development of Alzheimer's disease. As early as 1965, Kratzow first found that aluminum poisoning rabbits in the brain, there are Alzheimer's disease characteristic of the neuron tangles, but did not attract attention. It was not until 1973 that he pointed out, according to his research results, that the amount of aluminum in the cerebral cortex of cats increased, causing obvious brain dysfunction in cats, which aroused the world's alarm. Once in the body, aluminum salts are first deposited in the brain, where they can cause brain damage and severe memory loss that is characteristic of Alzheimer's disease. The researchers involved in the work said experiments on mice showed measurable levels of aluminium in their brains after they were given just a glass of water treated with aluminium salts. Studies on mice have found that tiny amounts of aluminum mixed with drinking water enter their brains and accumulate there. In a study of dementia patients, researchers found that 30 percent of the brain's neocortex had aluminum concentrations greater than 4 micrograms per gram (dry weight), and the amount of aluminum in the nuclei of neurons in the brains of patients was four times higher than in healthy people, up to 30 times higher. Researchers believe that if aluminum builds up in the brain over time, it can kill neurons and cause memory loss.

3. If aluminum is absorbed too much, it will accumulate in the liver, spleen, kidney and other parts. When the accumulation amount is more than 5 ~ 6 times, it will inhibit the absorption of phosphorus in the digestive tract, and also inhibit the activity of pepsin, which will hinder the digestion and absorption function of the human body. Therefore, excessive intake of aluminum will also cause loss of appetite and indigestion, affecting the intestinal absorption of phosphorus, strontium, iron, calcium and other elements.

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