Human exposure to aluminum

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Abstract
Aluminum is the third most abundant element in nature, accounting for nearly 8% of the Earth's crust. Because of its chemical activity, aluminum is not found naturally in its “free”, or metallic, state. However, in its ionic or combined forms, aluminum is a truly ubiquitous element. Because of the widespread use of metallic aluminum in cooking and packaging applications, the Aluminum Association has funded critical reviews of the world's literature on the health effects of aluminum and aluminum compounds for the past 30 years. More recently, an extensive research and literature surveillance effort was developed to provide information on the neurological implications of aluminum, dietary intakes and body balance, and analytical capabilities. Based on these efforts the following conclusions can presently be drawn: (1) the cause (or causes) of Alzheimer's disease is not known; (2) the biological significance of aluminum found in the brain is not understood; (3) aluminum is poorly absorbed by the body; and (4) the normal ingestion of aluminum from food and water should have no adverse effects on human health.

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