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How are metals like iron, copper and zinc connected to Alzheimer's disease?

There is some evidence that brain cells do not process metals, like iron, copper and zinc, normally in a person with Alzheimer's disease. Higher than normal amounts of metals have been found in the tangles and plaques between brain cells of people with this disease. However, there is NO evidence that normal exposures, such as dental fillings or drinking from aluminum cans, raises the risk of Alzheimer's disease.

Dr. Neal D. Barnard, MD
Psychiatrist (Therapist)

The amyloid plaque bundles found in Alzheimer's disease, which destroy the brain cells, have been shown to contain traces of metals like iron, copper and zinc. Watch Neal Barnard, MD, explain how these metals get ingested and the damage they cause.


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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.