Aluminium is a mineral, with the atomic number of 13, that is abundant in the environment but its function in the human body is unknown as yet. Under very acidic conditions aluminium can be released from rocks and soils in a soluble form which can be absorbed by plants and animals. Some plants naturally accumulate relatively high amounts of aluminium compounds in their leaves, from the soil in which they grow.
The amount of aluminium in the human body ranges between 50 and 150 mg with an average of about 65 mg. Most of this mineral is found in the brain, kidneys, liver, lungs and thyroid. The daily intake of aluminium may range from 10 -110 mg, but the body will eliminate most of this in the faeces and urine and some in the sweat. With decreased kidney function, more aluminium will be stored, particularly in the bones.
Aluminium is commonly ingested in tap water, foods and in medicines, such as antacids, and it is used in cosmetics. Its prevalence on the earth and its common uses are the reason for cases of aluminium toxicity in humans. Heavy consumption can lead to neurological disorders like Alzheimer's disease and other brain and senility syndromes and fluoride found in toothpastes and tap water helps aluminium cross the blood brain barrier.
Aluminium uptake from the diet is usually very low, with more than 99% passing through the digestive system unabsorbed. Absorption increases significantly in the presence of acidic foods such as orange juice. The small amount of aluminium that is absorbed into the body is rapidly excreted by the kidneys in urine, except in individuals with impaired kidney function, where aluminium retention within the body is responsible for dialysis dementia. If aluminium is not excreted in the urine it is harmlessly deposited in bone, which act as a 'sink' to remove aluminium.
Aluminium used in vaccines has the potential to induce serious immunological disorders in humans. In particular, there is a risk of autoimmunity, long-term brain inflammation and associated neurological complications that may have profound and widespread adverse health consequences.
Aluminium has long been identified as a neurotoxin metal, affecting memory, cognition and psychomotor control, altering neurotransmission and synaptic activity, damaging the blood–brain barrier, exerting pro-oxidant effects, activating microglia and brain inflammation, depressing the cerebral glucose metabolism and mitochondrial functions, interfering with transcriptional activity and promoting beta-amyloid and neuro-filament aggregation.
Aluminium overdose symptoms
Later symptoms of aluminium toxicity
Other possible conditions associated with aluminium toxicity
Natural sources of aluminium
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Health disorders and natural remedies