While aluminum foil is widely used in cooking and food storage, there is a common concern about its potential health risks. However, scientific consensus suggests that the risk of aluminum exposure from foil is minimal. Aluminum foil does not leach aluminum into food significantly, especially when used properly. The human body naturally excretes any small amounts of aluminum ingested, and there is no strong evidence linking aluminum foil use to Alzheimer's disease or other health issues. Nonetheless, it's always advisable to follow safe food handling practices and use aluminum foil as intended to minimize any potential risks.