Aluminum foil is made from metallic aluminum and hardly contains any other chemical. Sometimes, kerosene based lubricant maybe used in its manufacturing, but it evaporates very quickly. Aluminum foils are very thin sheets of aluminum (less than 0.5 mm thick) and are made by passing metallic aluminum through rollers. Since, there are no other chemicals present in aluminum foil, we are only exposed to metallic aluminum through the foils.
According to Center for Disease Control (CDC), very small quantities of aluminum enters our body through inhalation and ingestion and most of it is removed through feces and urine. Inhalation of large amounts of aluminum may cause lung problems, but such exposure is not possible with aluminum foils. People suffering from kidney disease are likely to have higher concentration of aluminum in body (due to less removal) and this may cause bone disease in children.
Controversy and pushback from the aluminum industry surrounds the question of human and pet harm from aluminum foil, but medical bioenvironmentalists site recent studies as proof that aluminum foil is well established as a neurotoxin factor active in the development of Parkinson's, autism, and dementia.
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