Aluminum is the third most common element in the earth's crust. The amount of aluminum in food can increase the risk of disease.
The World Health Organization has set a limit of one milligram per kilogram of body weight per week for long-term use. There are alternatives to aluminum foil for cooking and for storing food in the freezer. It is not recommended to use it to wrap food in plastic wrap. It can also be used to protect food from being burned in the oven.