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Diet and nutrition

Can ingesting or being exposed to aluminum pose health risks?

Ask the doctor

By , Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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Close-up of a recyclable aluminum serving tray covered with aluminum foil.

Q. Aluminum is an ingredient in deodorants, baking sodas, coffee creamers, and other products. Are there health risks associated with absorbing and consuming aluminum? Also, I've heard that putting foods into aluminum pans can increase health risks. Is this true?

A. There is no agreed-upon safe level of ingesting aluminum or being exposed to it.

With the possible exception of people with advanced kidney disease, no adverse health effects have been proven from the following:

  • cooking with aluminum pots and pans
  • using deodorants with aluminum
  • ingesting the tiny amounts of aluminum in foods and beverages.

The kidneys excrete the aluminum we absorb from our intestines. This process is usually very efficient. It prevents us from building up toxic levels of aluminum.

People with impaired kidneys, especially those on dialysis, tend to have much higher blood levels of aluminum compared to people with normal kidneys. However, they don't have any signs of aluminum poisoning.

That doesn't mean that aluminum is totally safe. Aluminum poisoning can cause serious health problems. These can include:

  • anemia
  • confusion and difficulty concentrating
  • bone disease.

However, even in people with higher than expected blood aluminum levels and one of these problems, the cause is usually something other than extra aluminum in the body.

Image: © Catherine McQueen/Getty Images

About the Author

photo of Howard E. LeWine, MD

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio
View all posts by Howard E. LeWine, MD
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