When you grill with aluminum foil, some of the aluminum definitely leach into the food, the amount leached is therefore based on the type of food you are grilling, the grilling temperature, and the acid content. Though cooled food wrapped in aluminum foil does not appear to absorb the metal scrapings.
A very common thing is that not just foil could expose us to aluminum we ingest every day. Tools and other equipment we use in our daily activities like cans, pots and pans and other utensils are also made of aluminum. It can also be found in antacids, some processed foods, buffered aspirin, and food additives. It can even be found in drinking water. This makes it unavoidable to have a less aluminum intake.
A report by National institutes of health found that only 0.1 to 0.3 percent of the aluminum we ingest makes it into our body system because the rest is eliminated by the digestive system. But until it reaches a certain dose many times from what we eat or drink in a day from all sources and not just aluminum foil may cause injury.
Alzheimer’s disease and the aluminum link are very fuzzy, some studies have highlighted this connection. Generally, if you want to limit your exposure to aluminum, it is recommended to minimize your intake of antacids and buffered aspirin. Though the relationship of Alzheimer’s disease and Aluminum intake is a myth and reports show that “Everyday sources of aluminum might pose any threat but not necessarily Alzheimer’s.