3. Lungs

Aluminum can be inhaled in small quantities when cooking foil-wrapped foods over an open flame.
Aluminum that makes its way into your body through inhalation is harder for your body to purge than aluminum that’s been ingested or that’s made its way into your body through your skin (5).
Sources Of Exposure

Aluminum exposure isn’t obvious if you don’t know the risks, so here are a few ways you may be poisoning yourself and your family.
Aluminum Flakes
Small pieces of aluminum may break off foil after unwrapping foil-covered food. Plus, heat creates little cracks in the foil and makes it more likely to break food and make its way into your food. These flakes aren’t necessarily visible to the naked eye, so you may not even know it’s there.