The word has been out for a long time connecting aluminum in out diets to Alzheimer's. According to Nature's Pharmacy (Your personal guide to vitamins, minerals, trace elements and their food sources) by Hannelore Helbing-Sheafe, PhD the following products should be avoided as ways aluminum can enter your body. Most antacids wrapping foil Certain baking powders processed cheese (invest in a cheese grater and shred your cheese yourself) Commercial table salt Older pots/pans Most deoderants (use baking soda) dental amalgams Cosmetic Toothpaste (also contains lye aka sodium hydroxide) Buffered aspirin Cigarettes Factory workers in contact with aluminum Food additives Filtered water In fact check the lable on all granular products. Aluminum (sometimes referred to as alum) is often used as an anti caking agent to keep foods that are supposed to clump from doing so. He doesn't mention aluminum cans but I think they should be on this list.